Results 151 to 160 of about 6,595,667 (193)
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Neurobiology of Learning and Memory, 2017
In extinction learning, the individual learns that a previously acquired association (e.g. between a threat and its predictor) is no longer valid. This learning is the principle underlying many cognitive-behavioral psychotherapeutic treatments, e.g. 'exposure therapy'.
Shira, Meir Drexler +2 more
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In extinction learning, the individual learns that a previously acquired association (e.g. between a threat and its predictor) is no longer valid. This learning is the principle underlying many cognitive-behavioral psychotherapeutic treatments, e.g. 'exposure therapy'.
Shira, Meir Drexler +2 more
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The Endocannabinoid System and Extinction Learning
Molecular Neurobiology, 2007The endocannabinoid system has emerged as a versatile neuromodulatory system, implicated in a plethora of physiological and pathophysiological processes. Cannabinoid receptor type 1 (CB1 receptor) and endocannabinoids are widely distributed in the brain. Their roles in learning and memory have been well documented, using rodents in various memory tests.
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Locus coeruleus lesions: Learning and extinction
Physiology & Behavior, 1978Abstract Bilateral destruction of the nucleus locus coeruleus (LC) by the electrolytic lesion produced large depletions of noradrenaline in the cerebral cortex (85%), hippocampus (70%), and cerebellar cortex (83%), and produced a disruption of the acquisition of an L-shaped runway task for food reward, however, acquisition of another learning task, a
G F, Koob, A E, Kelley, S T, Mason
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Context Extinction and Associative Learning in Lymnaea
Neurobiology of Learning and Memory, 2002Aerial respiratory behavior in the pond snail Lymnaea was operantly conditioned so that snails learned not to perform aerial respiration in a hypoxic environment. Snails were trained in either the standard context (no food odorant) or a carrot (food-odorant) context.
Chloe, McComb +5 more
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The CNV during Cognitive Learning and Extinction
1980Publisher Summary This chapter discusses the contingent negative variation (CNV) during cognitive learning and extinction. A large part of human learning involves the discovery of causal relationships between temporally contiguous events. This discovery depends upon the nature of the events, the motivation of the individual, and the strategy of his ...
G B, Proulx, T W, Picton
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Learned Immunosuppression: Extinction, Renewal, and the Challenge of Reconsolidation
Journal of Neuroimmune Pharmacology, 2012Behavioral conditioning of immune responses is one of the most impressive examples for the bidirectional communication among the nervous and immune systems. We established a model of behaviorally conditioned immunosuppression employing a conditioned taste aversion (CTA) paradigm in the rat pairing a novel taste (saccharin) as a conditioned stimulus (CS)
Hadamitzky, Martin +2 more
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Avoidance Learning, Extinction and Latent Extinction: A Methodological Note
The Psychological Record, 1968Simple methodological analysis reveals the impossibility of latent extinction of an avoidance response. Extension of the logic suggests some reasons for the resistance to extinction of the avoidance response.
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Extinction memories: putting learning into context
Trends in Cognitive SciencesWhile fear memories tend to generalize, extinction learning is more context-dependent. Recent results from representational similarity analyses indicate that neural representations of extinction contexts are more distinct than context representations during fear acquisition. This suggests that they resemble episodic memories, with possible consequences
Nikolai, Axmacher +3 more
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2019
Abstract Experimental fear conditioning and extinction represent basic forms of associative learning with considerable clinical relevance and serve as laboratory models for the development and treatment of anxiety disorders, respectively.
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Abstract Experimental fear conditioning and extinction represent basic forms of associative learning with considerable clinical relevance and serve as laboratory models for the development and treatment of anxiety disorders, respectively.
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Neural Circuits Mediating Fear Learning and Extinction
2018The activity of neural circuits that underpin particular behaviours are one of the most interesting questions in neurobiology today. This understanding will not only lead to a detailed understanding of learning and memory formation, but also provides a platform for the development of novel therapeutic approaches to a range of neurological disorders ...
Marek, Roger, Sah, Pankaj
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