Cognitive factors in childhood psychoses

I. Kolvin, Mr. Humphrey, A. McNay

British Journal of Psychiatry 1971; 118:415-419

With thanks to the Royal College of Psychiatrists for their support for this project. This article has been reproduced from the British Journal of Psychiatry, with the original available here:

Cite as: 

I. Kolvin, Mr. Humphrey, A. McNay, "Cognitive factors in childhood psychoses". British Journal of Psychiatry, Volume 118, pages 415-419, (Royal College of Psychiatrists, 1971).


This is the sixth and final paper of a series studying various symptomatic, physical and social aspects of a sample of 47 cases of infantile psychosis (I.P.) and 33 cases of late onset psychosis (L.O.P.). They were seen at the Park Hospital for Children, Oxford, and the Newcastle Child Psychiatry Unit.

The results of routine psychological testing are shown in Table I. In older, more accessible,and brighter children the Wechsler Intelligence Scale for Children or the 1960 revision of the Stanford-Binet (Form L-M) was used and in other cases the Merrill-Palmer.

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