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Microcephaly

Published online by Cambridge University Press:  08 February 2018

M. W. G. Brandon
Affiliation:
Fountain Hospital, London, S.W.17
Brian H. Kirman
Affiliation:
Fountain Hospital, London, S.W.17
Cyril E. Williams
Affiliation:
Fountain Hospital, London, S.W.17
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Smallness of the cranium is one of the commonest findings in severe mental defect. Ashby and Stuart (1933 and 1934) found a correlation between brain weight and mental age of +0.15, but they regarded this as part of the more general positive correlation of +0.24 which they observed between body weight and mental age. In discussing this subject elsewhere (Hilliard and Kirman, 1957), Crome and Kirman have taken a more definite stand on this matter in so far as idiocy and imbecility are concerned and regard reduced brain weight, which is so often associated with a small cranium, as one of the major factors in reduced intelligence. Crome (1957) found marked reduction in size to be the commonest abnormality in brains of low-grade defectives.

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Copyright © Royal College of Psychiatrists, 1959 
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