ERIC Number: ED334023
Record Type: RIE
Publication Date: 1991-Apr
Reference Count: N/A
Perinatal Sex Differences in Physiological and Behavioral Stress Reactivity.
This study examined physiological and behavioral stress reactivity in perinates in order to determine whether sex differences exist before extensive socialization. Fetal plasma cortisol response to the stress of labor and delivery, and neonatal heart rate and salivary cortisol response to a Brazelton Neonatal Assessment (NBAS), were measured. Male salivary cortisol was significantly higher at 10, 11, and 15 minutes post-NBAS than was female salivary cortisol. Female post-NBAS heart rate was higher than male heart rate, but the percentage change from baseline was not significant. The range of state cluster scores was higher in males, while motor performance was higher in females. (BC)
Publication Type: Reports - Research
Education Level: N/A
Authoring Institution: N/A
Identifiers: Brazelton Neonatal Assessment Scale; Stress (Biological)
Note: Paper presented at the Biennial Meeting of the Society for Research in Child Development (Seattle, WA, April 18-20, 1991).