Acute psychosocial stress and children's memory.
We investigated whether children's performance on working memory (WM) and delayed retrieval (DR) tasks decreased after stress exposure, and how physiological stress responses related to performance under stress. About 158 children (83 girls; Mage = 10.61 years, SD = 0.52) performed two WM tasks (WM forward and WM backward) and a DR memory task first during a control condition, and 1 week later during a stress challenge. Salivary alpha-amylase (sAA) and cortisol were assessed during the challenge. Only WM backward performance declined over conditions. Correlations between physiological stress responses and performance within the stress challenge were present only for WM forward and DR. For WM forward, higher cortisol responses were related to better performance. For DR, there was an inverted U-shape relation between cortisol responses and performance, as well as a cortisol × sAA interaction, with concurrent high or low responses related to optimal performance. This emphasizes the importance of including curvilinear and interaction effects when relating physiology to memory.
Department of Developmental Psychology, Behavioural Science Institute, Radboud University Nijmegen , Nijmegen , The Netherlands.
Danielle M J
DM
de Veld
J Marianne
JM
Riksen-Walraven
Carolina
C
de Weerth
D002648:Child; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000378:metabolism; D008297:Male; D008568:Memory / Q000502:physiology*; D012463:Saliva / Q000378:metabolism; D055291:Salivary alpha-Amylases / Q000378:metabolism; D013312:Stress, Physiological / Q000502:physiology*; D013315:Stress, Psychological / Q000378:metabolism*; D013647:Task Performance and Analysis
D055291:Salivary alpha-Amylases; D006854:Hydrocortisone
Cortisol; TSST-C; alpha-amylase; delayed retrieval; middle childhood; working memory