Intellect and serum uric acid: An optimal concentration of serum urate for human learning?

References

• Ammons , R. B. and Ammons , C. H. 1959 . A standard anagram task . Psychol. Rep. , 5 : 654 – 656 .
   Google Scholar
• Banerjee , B. and Saha , N. 1967 . Blood uric acid level of Indian and Western adults and its seasonal variation . Indian Med. Assoc. J. , 48 : 207 – 210 .
   PubMedGoogle Scholar
• Berg , E. A. 1948 . A simple objective for measuring flexibility in thinking . J. Gen. Psychol. , 39 : 15 – 22 .
   PubMed Web of Science ®Google Scholar
• Calhoun , W. H. 1971 . “ Central nervous system stimulants ” . In Pharmacological and biophysical agents and behaviour , Edited by: Furchgott , E. 181 – 268 . New York : Academic Press .
   Google Scholar
• Cook , J. M. , Heim , A. W. and Watts , K. P. 1963 . The Word‐in‐Context: A new type of verbal reasoning test . Brit. J. Psychol. , 54 : 227 – 237 .
   PubMedGoogle Scholar
• Duff , I. F. , Mikkelsen , W. M. , Dodge , H. J. and Himes , D. S. 1968 . Comparison of uric acid levels in some oriental and Caucasian groups unselected as to gout or hyperuricemia . Arthrit. Rheumat. , 11 : 184 – 190 .
   PubMedGoogle Scholar
• Dunn , J. P. , Brooks , G. W. , Mausner , J. , Rodnan , G. P. and Cobb , S. 1963 . Social class gradient of serum uric acid levels in males . J. Amer. Med. Assoc. , 185 : 431 – 436 .
   Web of Science ®Google Scholar
• Hahn , F. 1960 . Analeptics . Pharmacol. Rev. , 12 : 447 – 530 .
   PubMed Web of Science ®Google Scholar
• Healey , L. A. , Caner , J. E. Z. and Decker , J. L. 1966 . Ethnic variations in serum uric acid. I. Filipino hyperuricemia in a controlled environment . Arthrit. Rheumat. , 9 : 288 – 294 .
   Google Scholar
• Mikkelsen , W. M. , Dodge , H. J. and Valkenburg , H. 1965 . The distribution of serum uric add values in a population unselected as to gout or hyperuricemia . Amer. J. Med. , 39 : 242 – 251 .
   PubMed Web of Science ®Google Scholar
• Nyhan , W. L. 1968 . Lesch‐Nyhan syndrome: Summary of clinical features . Feder. Proc. , 27 : 1034 – 1041 .
   PubMedGoogle Scholar
• Nyhan , W. L. , Oliver , W. J. and Lesch , M. 1965 . A familial disorder of uric acid metabolism and central nervous system function . II. J. Pediat. , 67 : 257 – 263 .
   Google Scholar
• Orowan , E. 1955 . The origin of man . Nature , 175 : 683
   PubMed Web of Science ®Google Scholar
• Pascal , G. R. and Jenkins , W. O. 1959 . The Hunter‐Pascal Concept Formation Test: An experimental approach to the measurement of cortical capacity . J. Clin. Psychol. , 15 : 159 – 163 .
   PubMed Web of Science ®Google Scholar
• Razran , G. 1971 . Mind in evolution , Boston : Houghton‐Mifflin .
   Google Scholar
• Seegmiller , J. E. 1972 . Lesch‐Nyhan syndrome and the X‐linked uric acidurias . Hospital Practice , : 79 – 90 .
   Google Scholar
• Stanbury , J. B. , Wyngaarden , J. B. and Fredrickson , D. S. 1972 . Metabolic basis of inherited disease , New York : McGraw‐Hill .
   Google Scholar
• Stevens , H. A. 1973 . Serum uric acid: A biochemical factor in learning , Regina , Canada : University of Saskatchewan . Ph.D. thesis,
   Google Scholar
• Stevens , H. A. and Cropley , A. J. 1972 . Uric acid and behaviour: A new look at Orowan's hypothesis . Psychol. Rep. , 30 : 967 – 970 .
   Google Scholar
• Reprint requests should be sent to Dr. H. A. Stevens, Oakalla Hospital, 5700 Royal Oak Ave., Burnaby, B.C., Canada.
   Google Scholar