References
- Andersson S. A., Ericson T., Holmgren E., Lindquist G. Electroacupuncture: Effect on pain threshold measured with electrical stimulation of the teeth. Brain Res. 1973; 63: 393–396
- Smith R. B. Cranial electrotherapy stimulation. Neural Stimulation, Vol. II
- J.B. Myklebust, J.F. Cusick, A. Sances, J. Larson. CRC Press, Boca Raton, Florida 1985; 129–150
- Devor M. Pain and state induced analgesia. Stress Induced Analgesia, M.D. Tricklebank, G. Curzon. John Wiley & Sons, ChichesterU.K. 1984; 1–19
- Porro C. A., Carli G. Immobilization and restraint effects on pain reactions in animals. Pain 1988; 32: 287–307
- Selye H. The general adaption syndrome and diseases of adaption. J. Clin. Endocrinol. Metab. 1946; 60: 117–230
- Bodnar R. J. Types of stress which induce analgesia. Stress Induced Analgesia, M.D. Tricklebank, G. Curzon. John Wiley & Sons, Chichester, U.K. 1984; 19–32
- Capel I. D., Dorrell H. M., Spencer E. P. Interrupted currents are more analgesic than continuous currents in some models of acute pain. J. Bioelectricity 1989; 8: 59–71
- Skolnick M. H., Wilson O. B., Hamilton R. F., Collard CD., Hudson-Howard L., Hymel C., Malin D. H. Low current electrostimulation produces naloxone-reversible analgesia in rats, Stereotactic Funct. Neurosurg. 1989; 53: 125–140
- Fukawa K., Kawano O., Hibi M., Masaki N., Ohba S., Hatanaka Y. A method for evaluating analgesic agents in rats. J. Pharmacol. Methods 1980; 4: 251–259
- Vidal Suaudeau C. C., Jacob J. Regulation of body temperature and nociception induced by non-noxious stress in rat. Brain Res. 1984; 297: 1–10
- Vidal C., Jacob J. Hyperalgesia induced by non-noxious stress in the rat. Neurosci. Lett. 1982; 32: 75–80
- Hayes R. L., Bennet G. J., Newlon P. G., Nad Mayer D. J. Behavioural and physiological studies of non-narcotic analgesia in the rat elicited by certain environmental stimuli. Brain Res. 1978; 155: 69–90
- Jorum E. Analgesia or hyperalgesia following stress correlates with emotional behaviour in rats. Pain 1988; 32: 341–348
- Terman G. W., Shavit Y., Lewis J. W., Cannon J. T., Liebeskind J. C. Intrinsic mechanisms of pain inhibition: Activation by Stress. Science 1984; 226: 1270–1277
- Melzack R., Melinkoff D. F. Analgesia produced by brain stimulation: Evidence of a prolonged onset period. Exp. Neur. 1974; 43: 369–374
- Shyu B.-C, Andersson S. A., Thoren P. Endorphin mediated increase in pain threshold induced by long lasting exercise in rats. Life Sci. 1981; 30: 833–840