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Lovibond, Peter F. – Learning & Memory, 2004
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…
Descriptors: Learning Processes, Models, Scientific Research, Cognitive Processes
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Rescorla, Robert A. – Learning & Memory, 2004
Spontaneous recovery from extinction is one of the most basic phenomena of Pavlovian conditioning. Although it can be studied by using a variety of designs, some procedures are better than others for identifying the involvement of underlying learning processes. A wide range of different learning mechanisms has been suggested as being engaged by…
Descriptors: Animals, Learning Strategies, Learning Theories, Classical Conditioning
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Metherate, Raju – Learning & Memory, 2004
Acetylcholine release in sensory neocortex contributes to higher-order sensory function, in part by activating nicotinic acetylcholine receptors (nAChRs). Molecular studies have revealed a bewildering array of nAChR subtypes and cellular actions; however, there is some consensus emerging about the major nAChR subtypes and their functions in…
Descriptors: Auditory Perception, Stimulation, Biochemistry, Neurology