The purpose of the current article is to highlight the importance of operant techniques in developmental research. Although many researchers employ operant techniques within their individual fields of study, the pervasive nature of these techniques is not often acknowledged in the general literature. The present article describes the history of…

Human conditioning research shows that learning is closely related to consciously available contingency knowledge, requires attentional resources, and is influenced by language. This research suggests a cognitive model in which extinction consists of changes in contingency beliefs in long-term memory. Laboratory and clinical evidence on extinction…

Considers the debate about learning as based on conditioning or cognitive processes. Explores historical episodes in this debate in which issues were resolved first in favor of conditioning theory and then increasingly in favor of cognitive processes. Interprets the study by Coldren and Colombo reported in this monograph (PS 522 654) as a…

This article provides a selective review and integration of the behavioral literature on Pavlovian extinction. The first part reviews evidence that extinction does not destroy the original learning, but instead generates new learning that is especially context-dependent. The second part examines insights provided by research on several related…

Horizontal vs vertical associative memory is defined. Vertical associative memory involves chunking--specifying new nodes representing combinations of old nodes. Chunking is the basis of semantic memory and cognitive learning. The hippocampal (limbic) arousal system is critical to the chunking process; its disruption produces the amnesic syndrome.…

Reviews the literature on the relation between early memory development and corresponding changes in brain development of infants. Finds that an adult-like form of explicit memory emerges between 8 and 12 months of age, drawing heavily on limbic and cortical structures. Offers theoretical perspectives for studying the ontogeny of memory. (JW)

Describes the biological basis of learning and individuality. Presents an overview of recent discoveries that suggest learning engages a simple set of rules that modify the strength of connection between neurons in the brain. The changes are cited as playing an important role in making each individual unique. (MCO)