Journal
BEHAVIORAL NEUROSCIENCE
Volume 126, Issue 1, Pages 73-85Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/a0025540
Keywords
pregnancy; postpartum; cognition; steroid hormones; prolactin
Categories
Funding
- Canadian Institutes of Health Research (CIHR) [MOP-89960]
- Stairs Foundation
- McGill University
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This longitudinal study investigated the possible influence of estradiol (E-2), progesterone (P), testosterone (T), cortisol (CURT), and prolactin (PRL) levels on cognitive functioning during late pregnancy and the early postpartum period. The performance of 55 pregnant women on a battery of neuropsychological tests, tested once during the third trimester of pregnancy and once during the early postpartum period, was compared with that of 21 nonpregnant controls matched for age and education. Women in the pregnancy group had significantly lower scores than the controls during both the pre- and postpartum visits on tasks of verbal recall and processing speed. CURT levels were significantly associated, in an inverted-boolean OR function, with verbal recall scores at both the pregnancy and at postpartum periods and with spatial abilities at postpartum only. During pregnancy, PRL levels were associated in both a linear and an inverted-boolean OR function with scores on tests of paragraph recall and in a linear function with scores on tests of executive function. At postpartum, E-2 and CORT were negatively associated in a linear fashion with attention scores. These findings provide new evidence that fluctuating hormone levels during late pregnancy and early postpartum may modulate selected cognitive abilities.
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