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Chronic traumatic encephalopathy in sports: a historical and narrative review

References

  • Alosco, M. L., Kasimis, A. B., Stamm, J. M., Chua, A. S., Baugh, C. M., Daneshvar, D. H., … Stern, R. A. (2017). Age of first exposure to American football and long-term neuropsychiatric and cognitive outcomes. Translational Psychiatry, 7(9), e1236. doi:10.1038/tp.2017.197
  • Amen, D. G., Newberg, A., Thatcher, R., Jin, Y., Wu, J., Keator, D., & Willeumier, K. (2011). Impact of playing American professional football on long-term brain function. The Journal of Neuropsychiatry and Clinical Neurosciences, 23(1), 98–106. doi:10.1176/jnp.23.1.jnp98
  • Andrikopoulos, J. (2015). Age of first exposure to football and later-life cognitive impairment in former NFL players. Neurology, 85(11), 1007. doi:10.1212/WNL.0000000000001942
  • Anthony, I. C., Norrby, K. E., Dingwall, T., Carnie, F. W., Millar, T., Arango, J. C., … Bell, J. E. (2010). Predisposition to accelerated Alzheimer-related changes in the brains of human immunodeficiency virus negative opiate abusers. Brain, 133(Pt 12), 3685–3698. doi:10.1093/brain/awq263
  • Antonius, D., Mathew, N., Picano, J., Hinds, A., Cogswell, A., Olympia, J., … Leddy, J. (2014). Behavioral health symptoms associated with chronic traumatic encephalopathy: A critical review of the literature and recommendations for treatment and research. The Journal of Neuropsychiatry and Clinical Neurosciences, 26(4), 313–322. doi:10.1176/appi.neuropsych.13090201
  • Asken, B. M., Sullan, M. J., Dekosky, S. T., Jaffee, M. S., & Bauer, R. M. (2017). Rsearch gaps and controversies in chronic traumatic encephalopathy. Journal of the American Medical Assocaition, Neurology, 74, 1255–1262.
  • Bailes, J. E., Petraglia, A. L., Omalu, B. I., Nauman, E., & Talavage, T. (2013). Role of subconcussion in repetitive mild traumatic brain injury. Journal of Neurosurgery, 119(5), 1235–1245. doi:10.3171/2013.7.JNS121822
  • Bailey, C. M., Samples, H. L., Broshek, D. K., Freeman, J. R., & Barth, J. T. (2010). The relationship between psychological distress and baseline sports-related concussion testing. Clinical Journal of Sport Medicine : Official Journal of the Canadian Academy of Sport Medicine, 20(4), 272–277. doi:10.1097/JSM.0b013e3181e8f8d8
  • Ban, V. S., Madden, C. J., Bailes, J. E., Hunt Batjer, H., & Lonser, R. R. (2016). The science and questions surrounding chronic traumatic encephalopathy. Neurosurgical Focus, 40(4), E15. doi:10.3171/2016.2.FOCUS15609
  • Baron, S. L., Hein, M. J., Lehman, E., & Gersic, C. M. (2012). Body mass index, playing position, race, and the cardiovascular mortality of retired professional football players. The American Journal of Cardiology, 109(6), 889–896. doi:10.1016/j.amjcard.2011.10.050
  • Baugh, C. M., Stamm, J. M., Riley, D. O., Gavett, B. E., Shenton, M. E., Lin, A., … Stern, R. A. (2012). Chronic traumatic encephalopathy: Neurodegeneration following repetitive concussive and subconcussive brain trauma. Brain Imaging and Behavior, 6(2), 244–254. doi:10.1007/s11682-012-9164-5
  • Beable, S., Fulcher, M., Lee, A. C., & Hamilton, B. (2017). SHARPSports mental health awareness research project: Prevalence and risk factors of depressive symptoms and life stress in elite athletes. Journal of Science and Medicine in Sport / Sports Medicine Australia. doi:10.1016/j.jsams.2017.04.018
  • Beck, A. T., Steer, R. A., & Brown, G. K. (1996). Beck Depression Inventory-II. San Antonio, TX: The Psychological Corporation.
  • Belanger, H. G., Curtiss, G., Demery, J. A., Lebowitz, B. K., & Vanderploeg, R. D. (2005). Factors moderating neuropsychological outcomes following mild traumatic brain injury: A meta-analysis. Journal of the International Neuropsychological Society, 11(3), 215–227. doi:10.1017/S1355617705050277
  • Belanger, H. G., Vanderploeg, R. D., & McAllister, T. (2016). Subconcussive blows to the head: A formative review of short-term clinical outcomes. The Journal of Head Trauma Rehabilitation, 31(3), 159–166. doi:10.1097/HTR.0000000000000138
  • Bieniek, K. F., Ross, O. A., Cormier, K. A., Walton, R. L., Soto-Ortolaza, A., Johnston, A. E., … Dickson, D. W. (2015). Chronic traumatic encephalopathy pathology in a neurodegenerative disorders brain bank. Acta Neuropathologica, 130(6), 877–889. doi:10.1007/s00401-015-1502-4
  • Bowman, K. M., & Blau, A. B. R. A. M. (1940). Psychotic states following head and brain injury in adults and children. Injuries of Skull, Brain and Spinal Cord: Neuropsychiatric, Surgical, and Medico-Legal Aspects (PP. 309-60). Baltimore (MD): Williams & Wilkins Co.
  • Braak, H., Thal, D. R., Ghebremedhin, E., & Del Tredici, K. (2011). Stages of the pathologic process in Alzheimer disease: Age categories from 1 to 100 years. Journal of Neuropathology & Experimental Neurology, 70(11), 960–969. doi:10.1097/NEN.0b013e318232a379
  • Brett, B. L., & Solomon, G. S. (2017). Comparison of neurocognitive performance in contact and noncontact nonconcussed high school athletes across a two-year interval. Developmental Neuropsychology, 42(2), 70–82. doi:10.1080/87565641.2016.1243114
  • Brogley Webb, J. (2014). Concussions and Other Headaches: An Analysis of the Journalistic Coverage of the Concussion Crisis and Football-Related Brain Trauma. (Doctoral dissertation). Retrieved from https://etd.ohiolink.edu/
  • Broglio, S. P., Eckner, J. T., Paulson, H. L., & Kutcher, J. S. (2012). Cognitive decline and aging: The role of concussive and subconcussive impacts. Exercise and Sport Sciences Reviews, 40(3), 138–144. doi:10.1097/JES.0b013e3182524273
  • Bruce, J. M., & Echemendia, R. J. (2009). History of multiple self-reported concussions is not associated with reduced cognitive abilities. Neurosurgery, 64(1), 100–106; discussion 106. doi:10.1227/01.NEU.0000336310.47513.C8
  • Casson, I. R. (2010). Do the ‘Facts’ really support an association between NFL players’ concussions, dementia and depression? Neurology Today, 10, 6–7. doi:10.1097/01.NT.0000380917.17552.b7
  • Casson, I. R., Siegel, O., Sham, R., Campbell, E. A., Tarlau, M., & DiDomenico, A. (1984). Brain damage in modern boxers. JAMA : the Journal of the American Medical Association, 251(20), 2663–2667. doi:10.1001/jama.1984.03340440021020
  • Casson, I. R., Viano, D. C., Haacke, E. M., Kou, Z., & LeStrange, D. G. (2014). Is there chronic brain damage in retired NFL Players? Neuroradiology, neuropsychology, and neurology examinations of 45 retired players. Sports Health, 6(5), 384–395. doi:10.1177/1941738114540270
  • Castellani, R. (2015). Long-term effects of concussion: Fact and fiction. Paper presented at the Big Sky Athletic Training Sports Medicine Conference, Big Sky, MT.
  • Castellani, R. CTE: What do we know? Pathological findings. Presented at Head Injury in Soccer: From Science to the Field. April 22, 2017. New York, NY.
  • Center for Disease Control and Preventions (CDC). (2015). Mortality public use data file. Retrieved from https://www.cdc.gov/nchs/data_access/vitalstatsonline.htm
  • Center for Disease Control and Preventions (CDC). (2016). Mortality Data. National Vital Statistics System. Retrieved from https://www.cdc.gov/nchs/nvss/deaths.htm
  • Center for Disease Control and Preventions (CDC). (2017). Mortality data. Retrieved from http://www.cdc.gov/nchs/nvss/deaths.htm.
  • Collins, M. W., Kontos, A. P., Okonkwo, D. O., Almquist, J., Bailes, J., Barisa, M., … Zafonte, R. (2016). Statements of agreement from the Targeted Evaluation and Active Management (TEAM) approaches to treating concussion meeting held in Pittsburgh, October 15- 16,2015. Neurosurgery, 79(6), 912–929. doi:10.1227/NEU.0000000000001447
  • Corsellis, J. A., Bruton, C. J., & Freeman-Browne, D. (1973). The aftermath of boxing. Psychological Medicine, 3(3), 270–303. doi:10.1017/S0033291700049588
  • Courville, C. B. (1962). Punch drunk. Its pathogenesis and pathology on the basis of a verified case. Bulletin of the Los Angeles Neurological Society, 27, pp. 160–168.
  • Cottler, L. B., Ben Abdallah, A., Cummings, S. M., Barr, J., Banks, R., & Forchheimer, R. (2011). Injury, pain, and prescription opioid use among former National Football League (NFL) players. Drug and Alcohol Dependence, 116(1–3), 188–194. doi:10.1016/j.drugalcdep.2010
  • Coughlin, J. M., Wang, Y., Munro, C. A., Ma, S., Yue, C., Chen, S., … Higgs, C. (2015). Neuroinflammation and brain atrophy in former NFL players: An in vivo multimodal imaging pilot study. Neurobiology of Disease, 74, 58–65.12.003. doi:10.1016/j.nbd.2014.10.019
  • Covassin, T., Elbin, R. J., Larson, E., & Kontos, A. P. (2012). Sex and age differences in depression and baseline sport-related concussion neurocognitive performance and symptoms. Clinical Journal of Sport Medicine : Official Journal of the Canadian Academy of Sport Medicine, 22(2), 98–104. doi:10.1097/JSM.0b013e31823403d2
  • Critchley, M. (1949). Punch-drunk syndromes: the chronic traumatic encephalopathy of boxers. In. Hommage à Clovis Vincent. (pp.131–141). Paris: Maloine.
  • Davis, G. A., Castellani, R. J., & McCrory, P. (2015). Neurodegeneration and Sport. Neurosurgery, 76(6), 643–656.
  • Decker, S. L. (2015). National Health Interview Survey, 2012–13. Retrieved from CDC National Center for Health Statistics http://www.cdc.gov/nchs/nhis.htm
  • Denny-Brown, D. E., & Russell, W. R. (1941). Experimental concussion: (Section of neurology). Proceedings of the Royal Society of Medicine, 34(11), 691–692.
  • Deshpande, S. K., Hasegawa, R. B., Rabinowitz, A. R., Whyte, J., Roan, C. L., Tabatabaei, A., … Small, D. S. (2017). Association of playing high school football with cognition and mental health later in life. JAMA Neurology. doi:10.1001/jamaneurol.2017.1317
  • Didehbani, N., Munro Cullum, C., Mansinghani, S., Conover, H., & Hart, J. (2013). Depressive symptoms and concussions in aging retired NFL players. Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists, 28(5), 418–424. doi:10.1093/arclin/act028
  • Ellis, M. J., Ritchie, L. J., Koltek, M., Hosain, S., Cordingley, D., Chu, S., … Russell, K. (2015). Psychiatric outcomes after pediatric sports-related concussion. Journal of Neurosurgery. Pediatrics, 16(6), 709–718. doi:10.3171/2015.5.PEDS15220
  • Engel, G. L. (1977). The need for a new medical model: A challenge for biomedicine. Psychodynamic Psychiatry, 40(3), 377–396. doi:10.1521/pdps.2012.40.3.377
  • Erlanger, D. M. (2015). Exposure to sub-concussive head injury in boxing and other sports. Brain Injury : [BI], 29(2), 171–174. doi:10.3109/02699052.2014.965211
  • Esopenko, C., Chow, T. W., Tartaglia, M. C., Bacopulos, A., Kumar, P., Binns, M. A., … Levine, B. (2017). Cognitive and psychosocial function in retired professional hockey players. Journal of Neurology, Neurosurgery, and Psychiatry, 88(6), 512–519. doi:10.1136/jnnp-2016-315260
  • Filley, C. M., & Bernick, C. (2015). Children and football: A cautionary tale. Neurology, 84(11), 1068–1069. doi:10.1212/WNL.0000000000001357
  • Football, S. A. O. (1906). Editorial. Journal of the American Medical Association, XLVI, 122–123.
  • Forbes, C. R., Glutting, J. J., & Kaminski, T. W. (2016). Examining neurocognitive function in previously concussed interscholastic female soccer players. Applied Neuropsychology. Child, 5(1), 14–24. doi:10.1080/21622965.2014.933108
  • Fournier, C. N., Gearing, M., Upadhyayula, S. R., Klein, M., & Glass, J. D. (2015). Head injury does not alter disease progression or neuropathologic outcomes in ALS. Neurology, 84, 1788–1795. doi:10.1212/WNL.0000000000001522
  • Fralick, M., Thiruchelvam, D., Tien, H. C., & Redelmeier, D. A. (2016). Risk of suicide after a concussion. CMAJ : Canadian Medical Association Journal = Journal De l’association Medicale Canadienne, 188(7), 497–504. doi:10.1503/cmaj.150790
  • Gao, A. F., Ramsay, D., Twose, R., Rogaeva, E., Tator, G., & Hazrati, L. (2017). Chronic traumatic encephalopathy-like neuropathological findings without a history of trauma. International Journal of Pathology and Clinical Research, 3, A1–A4. doi:10.23937/2469-5807/1510050
  • Gardner, A., Iverson, G. L., & McCrory, P. (2013). Chronic traumatic encephalopathy in sport: a systematic review. British Journal of Sports Medicine, 48(2), 84–90. doi:10.1136/bjsports-2013-092646
  • Gavett, B. E., Stern, R. A., & McKee, A. C. (2011). Chronic traumatic encephalopathy: A potential late effect of sport-related concussive and subconcussive head trauma. Clinics in Sports Medicine, 30(1), 179–188, xi. doi:10.1016/j.csm.2010.09.007
  • Gorczynski, P. F., Coyle, M., & Gibson, K. (2017). Depressive symptoms in high-performance athletes and non-athletes: A comparative meta-analysis. British Journal of Sports Medicine, 51(18), 1348–1354. doi:10.1136/bjsports-2016-096455
  • Gulliver, A., Griffiths, K. M., Mackinnon, A., Batterham, P. J., & Stanimirovic, R. (2015). The mental health of Australian elite athletes. Journal of Science and Medicine in Sport / Sports Medicine Australia, 18(3), 255–261. doi:10.1016/j.jsams.2014.04.006
  • Guskiewicz, K. M., Marshall, S. W., Broglio, S. P., Cantu, R. C., & Kirkendall, D. T. (2002). No evidence of impaired neurocognitive performance in collegiate soccer players. The American Journal of Sports Medicine, 30(2), 157–162. doi:10.1177/03635465020300020201
  • Guskiewicz, K. M., Marshall, S. W., Bailes, J., McCrea, M., Cantu, R. C., Randolph, C., & Jordan, B. D. (2005). Association between recurrent concussion and late-life cognitive impairment in retired professional football players. Neurosurgery, 57(4), 719–726; discussion 719–726. doi:10.1093/neurosurgery/57.4.719
  • Guskiewicz, K. M., Marshall, S. W., Bailes, J., McCrea, M., Harding, H. P., Matthews, A., … Cantu, R. C. (2007). Recurrent concussion and risk of depression in retired professional football players. Medicine and Science in Sports and Exercise, 39(6), 903–909. doi:10.1249/mss.0b013e3180383da5
  • Gysland, S. M., Mihalik, J. P., Register-Mihalik, J. K., Trulock, S. C., Shields, E. W., & Guskiewicz, K. M. (2012). The relationship between subconcussive impacts and concussion history on clinical measures of neurologic function in collegiate football players. Annals of Biomedical Engineering, 40(1), 14–22. doi:10.1007/s10439-011-0421-3
  • Hanlon, F. M., McGrew, C. A., & Mayer, A. R. (2017). Does a unique neuropsychiatric profile currently exist for chronic traumatic encephalopathy? Current Sports Medicine Reports, 16(1), 30–35. doi:10.1249/JSR.0000000000000324
  • Harrison, E. A. (2014). The first concussion crisis: Head injury and evidence in early American football. American Journal of Public Health, 104(5), 822–833. doi:10.2105/AJPH.2013.301840
  • Hazrati, L. N., Tartaglia, M. C., Diamandis, P., Davis, K. D., Green, R. E., Wennberg, R., … Tator, C. H. (2013). Absence of chronic traumatic encephalopathy in retired football players with multiple concussions and neurological symptomatology. Frontiers in Human Neuroscience, 7, 222. doi:10.3389/fnhum.2013.00222
  • Horn, S., Gregory, P., & Guskiewicz, K. M. (2009). Self-reported anabolic-androgenic steroids use and musculoskeletal injuries: Findings from the center for the study of retired athletes health survey of retired NFL players. American Journal of Physical Medicine & Rehabilitation / Association of Academic Physiatrists, 88(3), 192–200. doi:10.1097/PHM.0b013e318198b622
  • Iverson, G. L. (2014). Chronic traumatic encephalopathy and risk of suicide in former athletes. British Journal of Sports Medicine, 48(2), 162–165. doi:10.1136/bjsports-2013-092935
  • Iverson, G. L. (2016). Suicide and Chronic Traumatic Encephalopathy. The Journal of Neuropsychiatry and Clinical Neurosciences, 28(1), 9–16. doi:10.1176/appi.neuropsych.15070172
  • Iverson, G. L., Gardner, A. J., McCrory, P., Zafonte, R., & Castellani, R. J. (2015). A critical review of chronic traumatic encephalopathy. Neuroscience & Biobehavioral Reviews, 56, 276–293.
  • Iverson, G. L., Lovell, M. R., & Collins, M. W. (2005). Validity of ImPACT for measuring processing speed following sports-related concussion. Journal of Clinical and Experimental Neuropsychology, 27(6), 683–689. doi:10.1081/13803390490918435
  • Iverson, G. L., Silverberg, N. D., Mannix, R., Maxwell, B. A., Atkins, J. E., Zafonte, R., & Berkner, P. D. (2015). Factors associated with concussion-like symptom reporting in high school athletes. JAMA Pediatrics, 169(12), 1132–1140. doi:10.1001/jamapediatrics.2015.2374
  • Janda, D. H., Bir, C. A., & Cheney, A. L. (2002). An evaluation of the cumulative concussive effect of soccer heading in the youth population. Injury Control and Safety Promotion, 9(1), 25–31. doi:10.1076/icsp.9.1.25.3324
  • Janssen, P. H., Mandrekar, J., Mielke, M. M., Ahlskog, J. E., Boeve, B. F., Josephs, K., & Savica, R. (2017). High school football and late-life risk of neurodegenerative syndromes, 1956–1970. Mayo Clinic Proceedings. Mayo Clinic, 92(1), 66–71. doi:10.1016/j.mayocp.2016.09.004
  • Jennings, D., Sells, P., Allison, J., Boyd, K., Frommert, D., Kessler, C., … Robinson, K. (2015). Effects of a season of subconcussive contact on child- scat3 scores in 8–12 year-old male athletes. International Journal of Sports Physical Therapy, 10(5), 667–675.
  • Jordan, B. D. (2013). The clinical spectrum of sport-related traumatic brain injury. Nature Reviews. Neurology, 9(4), 222–230. doi:10.1038/nrneurol.2013.33
  • Jordan, B. D., Relkin, N. R., Ravdin, L. D., Jacobs, A. R., Bennett, A., & Gandy, S. (1997). Apolipoprotein E epsilon4 associated with chronic traumatic brain injury in boxing. JAMA : the Journal of the American Medical Association, 278(2), 136–140. doi:10.1001/jama.1997.03550020068040
  • Junge, A., & Feddermann-Demont, N. (2016). Prevalence of depression and anxiety in top-level male and female football players. BMJ Open Sport Exercise Medicine, 2(1), e000087. doi:10.1136/bmjsem-2015-000087
  • Kaminski, T. W., Cousino, E. S., & Glutting, J. J. (2008). Examining the relationship between purposeful heading in soccer and computerized neuropsychological test performance. Research Quarterly for Exercise and Sport, 79(2), 235–244. doi:10.1080/02701367.2008.10599486
  • Kaminski, T. W., Wikstrom, A. M., Gutierrez, G. M., & Glutting, J. J. (2007). Purposeful heading during a season does not influence cognitive function or balance in female soccer players. Journal of Clinical and Experimental Neuropsychology, 29(7), 742–751. doi:10.1080/13825580600976911
  • Karantzoulis, S., & Randolph, C. (2013). Modern chronic traumatic encephalopathy in retired athletes: What is the evidence? Neuropsychology Review, 23(4), 350–360. doi:10.1007/s11065-013-9243-4
  • Kerr, Z. Y., Marshall, S. W., Harding, H. P., & Guskiewicz, K. M. (2012). Nine-year risk of depression diagnosis increases with increasing self-reported concussions in retired professional football players. The American Journal of Sports Medicine, 40(10), 2206–2212. doi:10.1177/0363546512456193
  • Kerr, Z. Y., Mihalik, J. P., Guskiewicz, K. M., Rosamond, W. D., Evenson, K. R., & Marshall, S. W. (2015). Agreement between athlete-recalled and clinically documented concussion histories in former collegiate athletes. The American Journal of Sports Medicine, 43(3), 606–613. doi:10.1177/0363546514562180
  • Koga, S., Dickson, D. W., & Bieniek, K. F. (2016). Chronic traumatic encephalopathy pathology in multiple system atrophy. Journal of Neuropathology & Experimental Neurology, 75(10), 963–970.
  • Kontos, A. P., Braithwaite, R., Chrisman, S. P. D., McAllister-Deitrick, J., Symington, L., Reeves, V. L., & Collins, M. W. (2017). Systematic review and meta-analysis of the effects of football heading. British Journal of Sports Medicine, 51(15), 1118–1124. doi:10.1136/bjsports-2016-096276
  • Kontos, A. P., Dolese, A., Elbin, R. J., Covassin, T., & Warren, B. L. (2011). Relationship of soccer heading to computerized neurocognitive performance and symptoms among female and male youth soccer players. Brain Injury : [BI], 25(12), 1234–1241. doi:10.3109/02699052.2011.608209
  • Kovacs, G. G., Horvath, M. C., Majtenyi, K., Lutz, M. I., Hurd, Y. L., & Keller, E. (2015). Heroin abuse exaggerates age-related deposition of hyperphosphorylated tau and p62-positive inclusions. Neurobiol Aging, 36(11), 3100–3107. doi:10.1016/j.neurobiolaging.2015.07.018
  • Kuhn, A. W., Yengo-Kahn, A. M., Kerr, Z. Y., & Zuckerman, S. L. (2016). Sports concussion research, chronic traumatic encephalopathy and the media: repairing the disconnect. British Journal of Sports Medicine, 51(24), 1732–1733. doi:10.1136/bjsports-2016-096508
  • Kuhn, A. W., Zuckerman, S. L., Solomon, G. S., Casson, I. R., & Viano, D. C. (2017). Interrelationships among neuroimaging biomarkers, neuropsychological test data, and symptom reporting in a cohort of retired National Football League players. Sports Health, 9(1), 30–40. doi:10.1177/1941738116674006
  • Kuran, T., & Sunstein, C. R. (1999). Availability cascades and risk regulation. Stanford Law Review, 51, 683–768. doi:10.2307/1229439
  • LACAVA, G. (1963). BOXER’S ENCEPHALOPATHY. Journal of Sports Medicine and Physical Fitness, 3, 87–92.
  • Lehman, E. J., Hein, M. J., & Gersic, C. M. (2016). Suicide mortality among retired national football league players who played 5 or more seasons. The American Journal of Sports Medicine, 44(10), 2486–2491. doi:10.1177/0363546516645093
  • Lin, C. H., Song, T. J., Chen, Y. Y., Lee, W. K., & Chiu, Y. C. (2013). Reexamining the validity and reliability of the clinical version of the iowa gambling task: Evidence from a normal subject group. Frontiers in Psychology, 4, 220. doi:10.3389/fpsyg.2013.00220
  • Ling, H., Holton, J. L., Shaw, K., Davey, K., Lashley, T., & Revesz, T. (2015). Histological evidence of chronic traumatic encephalopathy in a large series of neurodegenerative diseases. Acta Neuropathologica, 130(6), 891–893. doi:10.1007/s00401-015-1496-y
  • Ling, H., Morris, H. R., Neal, J. W., Lees, A. J., Hardy, J., Holton, J. L., … Williams, D. D. (2017). Mixed pathologies including chronic traumatic encephalopathy account for dementia in retired association football (soccer) players. Acta Neuropathologica, 133(3), 337–352. doi:10.1007/s00401-017-1680-3
  • Liu, A. K., Chang, R. C., Pearce, R. K., & Gentleman, S. M. (2015). Nucleus basalis of Meynert revisited: Anatomy, history and differential involvement in Alzheimer’s and Parkinson’s disease. Acta Neuropathologica, 129(4), 527–540. doi:10.1007/s00401-015-1392-5
  • Love, S., & Solomon, G. S. (2015). Talking with parents of high school football players about chronic traumatic encephalopathy: A concise summary. The American Journal of Sports Medicine, 43(5), 1260–1264. doi:10.1177/0363546514535187
  • Maddocks, D., Blaine, H., Inge, P., McCrory, P., & Saling, M. (2017). Long-term impact of concussional head injury on cognitive functioning in retired australian rules footballers: A preliminary report of a 25-year follow-up. British Journal of Sports Medicine, 51, A25–A26. doi:10.1136/bjsports-2016-097270.65
  • Maddocks, D., & Saling, M. (1996). Neuropsychological deficits following concussion. Brain Injury : [BI], 10(2), 99–103. doi:10.1080/026990596124584
  • Maher, M. E., Hutchison, M., Cusimano, M., Comper, P., & Schweizer, T. A. (2014). Concussions and heading in soccer: A review of the evidence of incidence, mechanisms, biomarkers and neurocognitive outcomes. Brain Injury : [BI], 28(3), 271–285. doi:10.3109/02699052.2013.865269
  • Manley, G., Gardner, A. J., Schneider, K. J., Guskiewicz, K. M., Bailes, J., Cantu, R. C., … Iverson, G. L. (2017). A systematic review of potential long-term effects of sport-related concussion. British Journal of Sports Medicine, 51(12), 969–977. doi:10.1136/bjsports-2017-097791
  • Maroon, J. C., Bailes, J., Collins, M., Lovell, M., & Mathyssek, C., Andrikopoulos, J., ... & Stamm, J. M. (2015). Age of first exposure to football and later-life cognitive impairment in former NFL players. Neurology, 85(11), 1007–1010. doi:10.1212/WNL.0000000000001942
  • Maroon, J. C., Winkelman, R., Bost, J., Amos, A., Mathyssek, C., & Miele, V. (2015). Chronic traumatic encephalopathy in contact sports: A systematic review of all reported pathological cases. PLoS One, 10(2), e0117338. doi:10.1371/journal.pone.0117338
  • Martland, H. S. (1928). Punch drunk. Journal of the American Medical Association, 91, 1103–1107. doi:10.1001/jama.1928.02700150029009
  • McAllister, T., & McCrea, M. (2017). Long-term cognitive and neuropsychiatric consequences of repetitive concussion and head-impact exposure. Journal of Athletic Training, 52(3), 309–317. doi:10.4085/1062-6050-52.1.14
  • McAllister, T. W., Flashman, L. A., Maerlender, A., Greenwald, R. M., Beckwith, J. G., Tosteson, T. D., … Turco, J. H. (2012). Cognitive effects of one season of head impacts in a cohort of collegiate contact sport athletes. Neurology, 78(22), 1777–1784. doi:10.1212/WNL.0b013e3182582fe7
  • McCrea, M. (2016). State of the science in sport-related concussion: How far have we come and where do we go next? Paper presented at the 4th Annual Concussion Symposium: Sports Neuropsychological Society, Houston, TX.
  • McCrory, P., Meeuwisse, W., Dvorak, J., Aubry, M., Bailes, J., Broglio, S., … Vos, P. E. (2017). Consensus statement on concussion in sport-the 5(th) international conference on concussion in sport held in Berlin, October 2016. British Journal of Sports Medicine. doi:10.1136/bjsports-2017-097699
  • McIntosh, J. L., & Drapeau, C. W. (2014). USA suicide 2011: Official final data. Washington, DC: American Association of Suicidology.
  • McKee, A. C., Cairns, N. J., Dickson, D. W., Folkerth, R. D., Keene, C. D., Litvan, I., … Group, T. C. (2016). The first NINDS/NIBIB consensus meeting to define neuropathological criteria for the diagnosis of chronic traumatic encephalopathy. Acta Neuropathologica, 131(1), 75–86. doi:10.1007/s00401-015-1515-z
  • McKee, A. C., Cantu, R. C., Nowinski, C. J., Hedley-Whyte, E. T., Gavett, B. E., Budson, A. E., … Stern, R. A. (2009). Chronic traumatic encephalopathy in athletes: Progressive tauopathy after repetitive head injury. Journal of Neuropathology & Experimental Neurology, 68(7), 709–735. doi:10.1097/NEN.0b013e3181a9d503
  • McKee, A. C., Stern, R. A., Nowinski, C. J., Stein, T. D., Alvarez, V. E., Daneshvar, D. H., … Cantu, R. C. (2013). The spectrum of disease in chronic traumatic encephalopathy. Brain, 136(Pt 1), 43–64. doi:10.1093/brain/aws307
  • McMillan, T. M., McSkimming, P., Wainman-Lefley, J., Maclean, L. M., Hay, J., McConnachie, A., & Stewart, W. (2017). Long-term health outcomes after exposure to repeated concussion in elite level: Rugby union players. Journal of Neurology, Neurosurgery, and Psychiatry, 88(6), 505–511. doi:10.1136/jnnp-2016-314279
  • Meehan, W., Mannix, R., Zafonte, R., & Pascual-Leone, A. (2015). Chronic traumatic encephalopathy and athletes. Neurology, 85(17), 1504–1511. doi:10.1212/WNL.0000000000001893
  • Meehan, W. P., Taylor, A. M., Berkner, P., Sandstrom, N. J., Peluso, M. W., Kurtz, M. M., … Mannix, R. (2016). Division III collision sports are not associated with neurobehavioral quality of life. Journal of Neurotrauma, 33(2), 254–259. doi:10.1089/neu.2015.3930
  • Mez, J., Daneshvar, D. H., Kiernan, P. T., Abdolmohammadi, B., Alvarez, V. E., Huber, B. R., … McKee, A. C. (2017). Clinicopathological evaluation of chronic traumatic encephalopathy in players of american football. JAMA : the Journal of the American Medical Association, 318(4), 360–370. doi:10.1001/jama.2017.8334
  • Mez, J., Solomon, T. M., Daneshvar, D. H., Stein, T. D., & McKee, A. C. (2016). Pathologically confirmed chronic traumatic encephalopathy in a 25-year-old former college football player. JAMA Neurology, 73(3), 353–355. doi:10.1001/jamaneurol.2015.3998
  • Miller, H. (1966). Mental Sequelæ of Head Injury: Mental After-Effects of Head Injury. Proceedings of the Royal Society of Medicine, 59(3), 257–261.
  • Millspaugh, J. A. (1937). Dementia pugilistica. US Naval Med Bull, 35, 297–303.
  • Montenigro, P. H., Baugh, C. M., Daneshvar, D. H., Mez, J., Budson, A. E., Au, R., … Stern, R. A. (2014). Clinical subtypes of chronic traumatic encephalopathy: literature review and proposed research diagnostic criteria for traumatic encephalopathy syndrome. Alzheimer’s Research & Therapy, 6(5), 68. doi:10.1186/s13195-014-0068-z
  • Morey, L. C., & Ambani, S. (2008). The personality assessment inventory. In G. J. Boyle, G. Matthews, & D. H. Saklofske (Eds.), The SAGE handbook of personality theory and assessment, Vol 2: Personality measurement and testing (pp. 626–645). Thousand Oaks, CA: Sage Publications.
  • Morgan, C. D., Zuckerman, S. L., Lee, Y. M., King, L., Beaird, S., Sills, A. K., & Solomon, G. S. (2015). Predictors of postconcussion syndrome after sports-related concussion in young athletes: A matched case-control study. Journal of Neurosurgery. Pediatrics, 15(6), 589–598. doi:10.3171/2014.10.PEDS14356
  • Mufson, E. J., Perez, S. E., Nadeem, M., Mahady, L., Kanaan, N. M., Abrahamson, E. E., … McKee, A. C. (2016). Progression of tau pathology within cholinergic nucleus basalis neurons in chronic traumatic encephalopathy: A chronic effects of neurotrauma consortium study. Brain Injury : [BI], 30(12), 1399–1413. doi:10.1080/02699052.2016.1219058
  • Munce, T. A., Dorman, J. C., Odney, T. O., Thompson, P. A., Valentine, V. D., & Bergeron, M. F. (2014). Effects of youth football on selected clinical measures of neurologic function: A pilot study. Journal of Child Neurology, 29(12), 1601–1607. doi:10.1177/0883073813509887
  • Namjoshi, D. R., Cheng, W. H., Carr, M., Martens, K. M., Zareyan, S., Wilkinson, A., … Wellington, C. L. (2016). Chronic exposure to androgenic-anabolic steroids exacerbates axonal injury and microgliosis in the CHIMERA mouse model of repetitive concussion. PLoS One, 11(1), e0146540. doi:10.1371/journal.pone.0146540
  • Nichols, E. H., & Smith, H. B. (1906). The physical aspect of American football. The Boston Medical and Surgical Journal, 154, 1–8. doi:10.1056/NEJM190601041540101
  • Nowinski, C. (2006). Head games: Football’s concussion crisis from the NFL to youth leagues. East Bridgewater, MA: Drummond Publishing Group.
  • Noy, S., Krawitz, S., & Del Bigio, M. R. (2016). Chronic traumatic encephalopathy-like abnormalities in a routine neuropathology service. Journal of Neuropathology and Experimental Neurology, 75(12), 1145–1154. doi:10.1093/jnen/nlw092
  • O’Kane, J. W. (2016). Is heading in youth soccer dangerous play? The Physician and Sportsmedicine, 44(2), 190–194. doi:10.1080/00913847.2016.1149423
  • Olfson, M., Kroenke, K., Wang, S., & Blanco, C. (2014). Trends in office-based mental health care provided by psychiatrists and primary care physicians. The Journal of Clinical Psychiatry, 75(3), 247–253. doi:10.4088/JCP.13m08834
  • Omalu, B. (2008). Play hard, die young: Football dementia, depression, and death. Lodi, CA: Neo Forenxis Books.
  • Omalu, B., Bailes, J., Hamilton, R. L., Kamboh, M. I., Hammers, J., Case, M., & Fitzsimmons, R. (2011). Emerging histomorphologic phenotypes of chronic traumatic encephalopathy in American athletes. Neurosurgery, 69(1), 173–183; discussion 183. doi:10.1227/NEU.0b013e318212bc7b
  • Omalu, B. I., DeKosky, S. T., Hamilton, R. L., Minster, R. L., Kamboh, M. I., Shakir, A. M., & Wecht, C. H. (2006). Chronic traumatic encephalopathy in a national football league player: Part II. Neurosurgery, 59(5), 1086–1092; discussion 1092–1083. doi:10.1227/01.NEU.0000245601.69451.27
  • Omalu, B. I., DeKosky, S. T., Minster, R. L., Kamboh, M. I., Hamilton, R. L., & Wecht, C. H. (2005). Chronic traumatic encephalopathy in a National Football League player. Neurosurgery, 57(1), 128–134; discussion 128–134. doi:10.1227/01.NEU.0000163407.92769.ED
  • Omalu, B. I., Fitzsimmons, R. P., Hammers, J., & Bailes, J. (2010a). Chronic traumatic encephalopathy in a professional American wrestler. Journal of Forensic Nursing, 6(3), 130–136. doi:10.1111/j.1939-3938.2010.01078.x
  • Omalu, B. I., Hamilton, R. L., Kamboh, M. I., DeKosky, S. T., & Bailes, J. (2010b). Chronic traumatic encephalopathy (CTE) in a National Football League Player: Case report and emerging medicolegal practice questions. Journal of Forensic Nursing, 6(1), 40–46. doi:10.1111/j.1939-3938.2009.01064.x
  • Ommaya, A. K., & Gennarelli, T. A. (1974). Cerebral concussion and traumatic unconsciousness. Correlation of experimental and clinical observations of blunt head injuries. Brain, 97(4), 633–654. doi:10.1093/brain/97.1.633
  • Osnato, M., & Giliberti, V. (1927). Postconcussion neurosis-traumatic encephalitis: A conception of postconcussion phenomena. Archives of Neurology & Psychiatry, 18, 181–214. doi:10.1001/archneurpsyc.1927.02210020025002
  • Parker, H. L. (1934). Traumatic encephalopathy (punch drunk’) of professional pugilists. Journal of Neurology and Psychopathology, 15(57), 20–28.
  • Paulus, W., Bancher, C., & Jellinger, K. (1992). Interrater reliability in the neuropathologic diagnosis of Alzheimer’s disease. Neurology, 42(2), 329–429. doi:10.1212/WNL.42.2.329
  • Pellman, E. J. (2003). Background on the National Football League’s research on concussion in professional football. Neurosurgery, 53(4), 797–798. doi:10.1093/neurosurgery/53.3.797
  • Pellman, E. J., Lovell, M. R., Viano, D. C., Casson, I. R., & Tucker, A. M. (2004a). Concussion in professional football: Neuropsychological testing–Part 6. Neurosurgery, 55(6), 1290–1305. doi:10.1227/01.NEU.0000149244.97560.91
  • Pellman, E. J., Powell, J. W., Viano, D. C., Casson, I. R., Tucker, A. M., Feuer, H., … Robertson, D. W. (2004b). Concussion in professional football: Epidemiological features of game injuries and review of the literature–Part 3. Neurosurgery, 54(1), 81–96. doi:10.1227/01.NEU.0000097267.54786.54
  • Perrine, K., Helcer, J., Tsiouris, A. J., Pisapia, D. J., & Stieg, P. (2017). The current status of research on chronic traumatic encephalopathy. World Neurosurgery, 102, 533–544. doi:10.1016/j.wneu.2017.02.084
  • Petersen, R. C. (2011). Clinical practice. Mild cognitive impairment. The New England Journal of Medicine, 364(23), 2227–2234. doi:10.1056/NEJMcp0910237
  • Putukian, M., Echemendia, R. J., & Mackin, S. (2000). The acute neuropsychological effects of heading in soccer: A pilot study. Clinical Journal of Sport Medicine : Official Journal of the Canadian Academy of Sport Medicine, 10(2), 104–109. doi:10.1097/00042752-200004000-00004
  • Puvenna, V., Engeler, M., Banjara, M., Brennan, C., Schreiber, P., Dadas, A., … Janigro, D. (2016). Is phosphorylated tau unique to chronic traumatic encephalopathy? Phosphorylated tau in epileptic brain and chronic traumatic encephalopathy. Brain Research, 1630, 225–240. doi:10.1016/j.brainres.2015.11.007
  • Ramage, S. N., Anthony, I. C., Carnie, F. W., Busuttil, A., Robertson, R., & Bell, J. E. (2005). Hyperphosphorylated tau and amyloid precursor protein deposition is increased in the brains of young drug abusers. Neuropathology and Applied Neurobiology, 31(4), 439–448. doi:10.1111/j.1365-2990.2005.00670.x
  • Rao, A. L., Asif, I. M., Drezner, J. A., Toresdahl, B. G., & Harmon, K. G. (2015). Suicide in National Collegiate Athletic Association (NCAA) athletes: A 9-Year Analysis of the NCAA resolutions database. Sports Health, 7(5), 452–457. doi:10.1177/1941738115587675
  • Reams, N., Eckner, J. T., Almeida, A. A., Aagesen, A. L., Giordani, B., Paulson, H., … Kutcher, J. S. (2016). A clinical approach to the diagnosis of traumatic encephalopathy syndrome: A review. JAMA Neurology, 73(6), 743–749. doi:10.1001/jamaneurol.2015.5015
  • Rice, S. M., Purcell, R., De Silva, S., Mawren, D., McGorry, P. D., & Parker, A. G. (2016). The mental health of elite athletes: A narrative systematic review. Sports Medicine, 46(9), 1333–1353. doi:10.1007/s40279-016-0492-2
  • Rieder, C., & Jansen, P. (2011). No neuropsychological consequence in male and female soccer players after a short heading training. Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists, 26(7), 583–591. doi:10.1093/arclin/acr055
  • Roberts, A. H. (1969). Brain damage in boxers: a study of the prevalence of traumatic encephalopathy among ex-professional boxers. London: Pitman Medical & Scientific Publishing Co.
  • Roberts, G. W., Allsop, D., & Bruton, C. (1990). The occult aftermath of boxing. Journal of Neurology, Neurosurgery, and Psychiatry, 53(5), 373–378. doi:10.1136/jnnp.53.5.373
  • Rockett, I. R., & Caine, E. D. (2015). Self-injury is the eighth leading cause of death in the United States: It is time to pay attention. JAMA Psychiatry, 72(11), 1069–1070. doi:10.1001/jamapsychiatry.2015.1418
  • Rockett, I. R., Regier, M. D., Kapusta, N. D., Coben, J. H., Miller, T. R., Hanzlick, R. L., … Smith, G. S. (2012). Leading causes of unintentional and intentional injury mortality: United States, 2000–2009. American Journal of Public Health, 102(11), e84–92. doi:10.2105/AJPH.2012.300960
  • Rohling, M. L., Binder, L. M., Demakis, G. J., Larrabee, G. J., Ploetz, D. M., & Langhinrichsen-Rohling, J. (2011). A meta-analysis of neuropsychological outcome after mild traumatic brain injury: Re-analyses and reconsiderations of Binder et al. (1997), Frencham et al. (2005), and Pertab et al. (2009). The Clinical Neuropsychologist, 25(4), 608–623. doi:10.1080/13854046.2011.565076
  • Sagher, O. (2013). Subconcussion in traumatic brain injury. Journal of Neurosurgery, 119(5), 1233; discussion 1233–1234. doi:10.3171/2013.4.JNS13538
  • Savica, R., Parisi, J. E., Wold, L. E., Josephs, K. A., & Ahlskog, J. E. (2012). High school football and risk of neurodegeneration: A community-based study. Mayo Clinic Proceedings. Mayo Clinic, 87(4), 335–340. doi:10.1016/j.mayocp.2011.12.016
  • Solomon, G. S. (1983). Recovery of Memory Functions Following Closed Head Injury ( Doctoral Dissertation). Texas Tech University, Lubbock, TX.
  • Solomon, G. S., Kuhn, A. W., Zuckerman, S. L., Casson, I. R., Viano, D. C., Lovell, M. R., & Sills, A. K. (2016). Participation in pre-high school football and neurological, neuroradiological, and neuropsychological findings in later life: A study of 45 retired National Football League Players. The American Journal of Sports Medicine, 44(5), 1106–1115. doi:10.1177/0363546515626164
  • Solomon, G. S., Ott, S. D., & Lovell, M. R. (2011). Long-term neurocognitive dysfunction in sports: What is the evidence? Clinics in Sports Medicine, 30(1), 165–177, x-xi. doi:10.1016/j.csm.2010.09.002
  • Solomon, G. S., & Sills, A. (2014). Chronic traumatic encephalopathy and the availability cascade. The Physician and Sportsmedicine, 42(3), 26–31. doi:10.3810/psm.2014.09.2072
  • Solomon, G. S., & Zuckerman, S. L. (2015). Chronic traumatic encephalopathy in professional sports: Retrospective and prospective views. Brain Injury : [BI], 29(2), 164–170. doi:10.3109/02699052.2014.965205
  • Spielberger, C. D., Gorsuch, R. L., Lushene, R., Vagg, P. R., & Jacobs, G. A. (1970). Manual for the State-Trait Anxiety Inventory. Palo Alto, CA: Consulting Psychologists Press.
  • Spiotta, A. M., Bartsch, A. J., & Benzel, E. C. (2012). Heading in soccer: Dangerous play? Neurosurgery, 70(1), 1–11; discussion 11. doi:10.1227/NEU.0b013e31823021b2
  • Stamm, J. M., Bourlas, A. P., Baugh, C. M., Fritts, N. G., Daneshvar, D. H., Martin, B. M., … Stern, R. A. (2015). Age of first exposure to football and later-life cognitive impairment in former NFL players. Neurology, 84(11), 1114–1120. doi:10.1212/WNL.0000000000001358
  • Stamm, J. M., Koerte, I. K., Muehlmann, M., Pasternak, O., Bourlas, A. P., Baugh, C. M., … Shenton, M. E. (2015). Age at first exposure to football is associated with altered corpus callosum white matter microstructure in former professional football players. Journal of Neurotrauma, 32(22), 1768–1776. doi:10.1089/neu.2014.3822
  • Stein, T. D., Montenigro, P. H., Alvarez, V. E., Xia, W., Crary, J. F., Tripodis, Y., … McKee, A. C. (2015). Beta-amyloid deposition in chronic traumatic encephalopathy. Acta Neuropathologica, 130(1), 21–34. doi:10.1007/s00401-015-1435-y
  • Stephens, R., Rutherford, A., Potter, D., & Fernie, G. (2005). Neuropsychological impairment as a consequence of football (soccer) play and football heading: A preliminary analysis and report on school students (13–16 years). Child Neuropsychology : A Journal on Normal and Abnormal Development in Childhood and Adolescence, 11(6), 513–526. doi:10.1080/092970490959629
  • Stephens, R., Rutherford, A., Potter, D., & Fernie, G. (2010). Neuropsychological consequence of soccer play in adolescent U.K. School team soccer players. The Journal of Neuropsychiatry and Clinical Neurosciences, 22(3), 295–303. doi:10.1176/jnp.2010.22.3.295
  • Stern, R. A., Daneshvar, D. H., Baugh, C. M., Seichepine, D. R., Montenigro, P. H., Riley, D. O., … McKee, A. C. (2013). Clinical presentation of chronic traumatic encephalopathy. Neurology, 81(13), 1122–1129. doi:10.1212/WNL.0b013e3182a55f7f
  • Straume-Naesheim, T. M., Andersen, T. E., Dvorak, J., & Bahr, R. (2005). Effects of heading exposure and previous concussions on neuropsychological performance among Norwegian elite footballers. British Journal of Sports Medicine, 39(Suppl 1), i70–77. doi:10.1136/bjsm.2005.019646
  • Sullivan, E., Annest, J. L., Luo, F., Simon, T. R., & Dahlberg, L. L. (2013). Suicide among adults aged 35–64 years—United States, 1999–2010 (Morbidityand Mortality Weekly Report). Atlanta: Center for Disease Control and Prevention(US).
  • Symonds, C. (1962). Concussion and its sequelae. The Lancet, 279, 1–5. doi:10.1016/S0140-6736(62)92635-1
  • Tagliabue, P. (2003). Tackling concussions in sports. Neurosurgery, 53(4), 796. doi:10.1227/01.NEU.0000083559.68424.3F
  • Tarnutzer, A. A., Straumann, D., Brugger, P., & Feddermann-Demont, N. (2017). Persistent effects of playing football and associated (subconcussive) head trauma on brain structure and function: A systematic review of the literature. British Journal of Sports Medicine, 51(22), 1592–1604. doi:10.1136/bjsports-2016-096593
  • Terry, D. P., & Miller, L. S. (2017). Repeated mild traumatic brain injuries is not associated with volumetric differences in former high school football players. Brain Imaging and Behavior. doi:10.1007/s11682-017-9719-6
  • Trofimovich, L., Skopp, N. A., Luxton, D. D., & Reger, M. A. (2012). Health care experiences prior to suicide and self-inflicted injury, active component, U.S. armed forces, 2001–2010. Msmr, 19(2), 2–6.
  • Uryu, K., Chen, X. H., Martinez, D., Browne, K. D., Johnson, V. E., Graham, D. I., … Smith, D. H. (2007). Multiple proteins implicated in neurodegenerative diseases accumulate in axons after brain trauma in humans. Experimental Neurology, 208(2), 185–192. doi:10.1016/j.expneurol.2007.06.018
  • Vann Jones, S. A., Breakey, R. W., & Evans, P. J. (2014). Heading in football, long-term cognitive decline and dementia: Evidence from screening retired professional footballers. British Journal of Sports Medicine, 48(2), 159–161. doi:10.1136/bjsports-2013-092758
  • Vos, B. C., Nieuwenhuijsen, K., & Sluiter, J. K. (2017). Consequences of traumatic brain injury in professional American football players: A systematic review of the literature. Clinical Journal of Sport Medicine : Official Journal of the Canadian Academy of Sport Medicine. doi:10.1097/JSM.0000000000000432
  • Webner, D., & Iverson, G. L. (2016). Suicide in professional American football players in the past 95 years. Brain Injury : [BI], 30(13–14), 1718–1721. doi:10.1080/02699052.2016.1202451
  • Wolanin, A., Gross, M., & Hong, E. (2015). Depression in athletes: Prevalence and risk factors. Current Sports Medicine Reports, 14(1), 56–60. doi:10.1249/JSR.0000000000000123
  • Wortzel, H. S., Shura, R. D., & Brenner, L. A. (2013). Chronic traumatic encephalopathy and suicide: A systematic review. BioMed Research International, 2013, 424280. doi:10.1155/2013/424280
  • Yang, J., Peek-Asa, C., Covassin, T., & Torner, J. C. (2015). Post-concussion symptoms of depression and anxiety in division I collegiate athletes. Developmental Neuropsychology, 40(1), 18–23. doi:10.1080/87565641.2014.973499
  • Yengo-Kahn, A. M., Johnson, D. J., Zuckerman, S. L., & Solomon, G. S. (2016). Concussions in the national football league: A current concepts review. The American Journal of Sports Medicine, 44(3), 801–811. doi:10.1177/0363546515580313
  • Yengo-Kahn, A. M., & Solomon, G. (2015). Are psychotropic medications associated with differences in baseline neurocognitive assessment scores for young athletes? A pilot study. The Physician and Sportsmedicine, 43(3), 227–235. doi:10.1080/00913847.2015.1071638

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