Failure to find pregnancy effects on cortical thickness

Janice M. Juraska, Silvia N.M. Reid

Research output: Contribution to journalArticlepeer-review


There are reports by Diamond and her colleagues, based on measurements made shortly after parturition, that pregnancy increases the size of the cerebral cortex in rats. As a prelude to examining the cellular basis for this phenomenon, we measured the size of the cortex in three coronal planes in hooded rats on the last day of their pregnancy and in control, nonpregnant female littermates. No differences were found between the pregnant and control rats. We conclude that either the events on the day of parturition alter the size of the cortex or the effects of pregnancy on the cortex are not reliable.

Original languageEnglish (US)
Pages (from-to)99-101
Number of pages3
JournalBehavioral and Neural Biology
Issue number1
StatePublished - Jan 1994

ASJC Scopus subject areas

  • Physiology


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