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

It was concluded from the date that satiation plays a determining role in the continued utilization of an acquired response while distraction is a primary determinant of acquisition rate. (Authors)

Groups of second grade and college students were presented with a series of three-alternative, four-dimensional discrimination problems that contained probes for the subject's hypothesis. Subjects received either complete feedback or partial feedback. In the latter condition, when subjects were told their response choice was incorrect the correct…

Presents four studies of concept identification behavior in first graders and kindergarten children under the blocking paradigm as implemented within a multidimensional discrimination task. While blocking was observed in children's learning, the data indicate the need for more sensitive and individualized measures of stimulus control in future…

If learning is viewed in terms of the tendency to approach a stimulus that has been rewarded and to avoid a stimulus that has not been rewarded, then it must be concluded that the subjects in this study did not learn. (Author)

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)

Study found that stimulus presence during a delay of reinforcement interval enhanced performance, and to a large extent prevented the usual delay-produced decrement. (Authors)

Male school children of three age levels were tested on a 2-choice visual discrimination task that varied in spatial continguity of stimulus, response, and reward. Separation of stimulus from response and reward was found to retard learning. (WY)

Study attempts to clarify the attentional versus perceptual learning functions of presence of the discriminative stimuli during delay. (Authors)

Aim of the present study was to clarify the processes involved in the apparent lag in copying a diamond by reducing the lag experimentally with perceptual training of discrimination of orientation. (Authors)