An infant control habituation-recovery procedure was used to study 3-month-old infants' discrimination of sad, happy, and surprise facial expressions. (Author/JMB)

Six- to 7-month-old infants were tested on their ability to discriminate among three speech sounds which differed on the basis of formant-transition duration, a major cue to distinctions among stop, semivowel, and diphthong classes. (Author/PHR)

This study examined the equivalence of objects and pictures of objects in transfer discrimination of 72 children (ages 24-45 months). (BRT)

This study investigated vowel discrimination in 8-week-old infants. Using a nonnutritive, high-amplitude sucking measure in a habituation-dishabituation paradigm. (Author/SB)

Infants of 6 months and older can be said to have discriminated between different orientations of the same form. (Author)

Sixteen 9-18 month normal/superior infants "played" in their home cribs with a two-channel operant "toy" which allowed free choice between alternate audio feedbacks. With more than 300,000 seconds of listening time in the response record, 12 babies successfully discriminated gross differences in auditory complexity, while 10 discriminated fine…

Response and reinforcement features of operant discrimination paradigms used in audiometric assessment were investigated with normal 17-month-old children. Findings indicated more responses prior to onset of habituation when response tasks involved complex central processing skills and a twofold increase in number of subject responses when…

Measures of active sleep, quiet sleep, sucking, crying, body size and gestational age were factor analyzed for 137 normal newborns at 2 days of age. The results yielded 3 stable factors: reactivity-irritability, maturity, and reflexive and discriminative sucking. (JMB)

This research project was designed to determine whether 1-week-old neonates would indicate biological recognition of their mothers. Biological recognition is defined as the particular configuration of sensory, kinesthetic, and motor cues and the temporal patterning of these cues which characterizes infants' exchange processes with their…

This experiment examines extended learning over a 4-day period in infants exposed to responsive and unresponsive wooden mobiles. Frequency of kicks and attention to the mobile increased over the first three days and was found to vary with the introduction of a novel mobile on day four. (GO)

Tests the hypothesis that, while the difference in rate of smiling to O degree v non-O degree orientations will diminish with increasing age with silent and/or unfamiliar faces, infants over 14 weeks of age should continue to discriminate between a talking familiar 0 degree face, and all other combinations of orientation, familiarity, and silent…

This is a partial report of a longitudinal investigation designed to assess the psychological effects of an experimentally conducted day care program on children during the first 30 months of life. The experimental subjects were Chinese and Caucasian children from working and middle class families who were cared for at a special group care center…