A light-weight (2 gms) or heavier-weight (8 gms) object (vial of cotton or pellets, respectively) was placed in the right hand of 50 full-term infants (M age = 43 hr old) born to depressed (n = 27) or nondepressed mothers (Mothers' M age = 27 yrs old). After the infants habituated to one weight by hand, they were tested with the opposite weight object. The infants of the depressed mothers did not respond to the novel weight, and only 15% of those infants showed hand movements that might have facilitated their perception of the object's weight (e.g., hand-to-mouth or face, turning/moving of the wrist or hand). In contrast, 78% of the infants of nondepressed mothers showed hand activity that might have facilitated weight perception, and as a group, they held the novel weight longer, suggesting that they had perceived the weight change.
ASJC Scopus subject areas
- Developmental and Educational Psychology