The mother's psychophysiological reactions to contrasting affective expressions by her own and an unfamiliar infant.

Investigated mothers' autonomic reactions to their own infants' emotional states. 17 mothers of 5-mo-olds viewed 2 landscape scenes and 4 types of videotaped segments depicting their own baby and an unfamiliar baby smiling or crying. Each episode was presented for 3 consecutive 10-sec trials, and order of stimulation was varied systematically. Initial presentations of Ss' own infants evoked cardiac acceleration and large skin conductance responses (SCRs), whereas cardiac deceleration and smaller SCRs were evoked by the unfamiliar infant crying. Episodes displaying the strange infant smiling and landscapes yielded nonsignificant trends toward cardiac deceleration and still smaller SCRs. Results indicate that mothers react with excitement to images of their own child and with patterns characteristic of environmental intake or orientation when viewing unfamiliar infants. Because parent–child relations are considered transactional, physiological indices of maternal responsiveness to infant behaviors are useful as potential predictors of developmental outcome. Hence, it is concluded that the findings that mothers display differential physiological reactions to their own and unfamiliar infants are especially promising. (25 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)