2023 • In Infant Behavior and Development, 71 file://localhost/Users/robert.kumsta/Documents/Papers%20Library/Tisborn-A%20matter%20of%20habit-%20Stressful%20life%20events%20and%20cognitive%20flexibility%20in%2015-month-olds-2023-Infant%20Behavior%20and%20Development.pdf, p. 101810
[en] Exposure to chronic stress is associated with habitual learning in adults. We studied the origins of this association by examining the link between stressful life events and infant cognitive flexibility. The final sample consisted of N = 72 fifteen-month-old infants and their mothers. Mothers completed a survey on pre- and postnatal negative life events. To assess chronic stress physiologically, infant and maternal hair cortisol concentrations were determined for cortisol accumulation during the past 3 months. Each infant participated in two cognitive tasks in the laboratory. An instrumental learning task tested infants’ ability to disengage from a habituated action when this action became ineffective (Seehagen et al., 2015). An age-adequate version of the A-not-B task tested infants’ ability to find a toy at location B after repeatedly finding it at location A. Correlations between cortisol concentrations and postnatal negative life events (number, perceived impact) did not yield significance. Infant and maternal hair cortisol concentrations were not correlated. Infants’ ability to shift to a new action in either task, controlled for acute stress, correlated neither with pre- and postnatal negative life events nor with cortisol concentrations. Taken together, these results indicate that the potential link between long-term stress exposure and cognitive flexibility might not be present in samples with low levels of psychosocial stress.
Disciplines :
Neurosciences & behavior
Author, co-author :
Tisborn, Katharina
KUMSTA, Robert ; University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Behavioural and Cognitive Sciences (DBCS)
Zmyj, Norbert
Seehagen, Sabine
External co-authors :
yes
Language :
English
Title :
A matter of habit? Stressful life events and cognitive flexibility in 15-month-olds
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