Conditioning, Classical (Latest Articles)

Latest indexed articles for 'Conditioning, Classical'

Articles 151 to 160 of 200:

Fear potentiated startle at short intervals following conditioned stimulus onset during delay but not trace conditioning.

4 Apr 2009 The latency of conditioned fear after delay and trace conditioning was investigated. Some argue that delay conditioning is not dependent on awareness. In contrast, trace conditioning, where there is a gap between the conditioned stimulus (CS) and ...
rec_pub_19386051-fear-potentiated-startle-short-intervals-following-conditioned.htm

Posttraumatic stress disorder may be associated with impaired fear inhibition: relation to symptom severity.

3 Apr 2009 One of the central problems in posttraumatic stress disorder (PTSD) is the inability to suppress fear even under safe conditions. The neural underpinnings of fear are clinically relevant but poorly understood. This study assessed fear potentiation ...
rec_pub_19345420-posttraumatic-stress-disorder-associated-impaired-fear-inhibition.htm

Electrophysiological studies of the effects of chronic administration of caffeine on the formation of a conditioned defensive reflex in the common snail.

31 Mar 2009 Chronic administration of caffeine to common snails increased the rate of formation of a conditioned defensive reflex. When daily caffeine injections were given immediately after the training procedure, the conditioned defensive reflex was acquired ...
rec_pub_19340583-electrophysiological-studies-effects-chronic-administration-caffeine.htm

Extinction-reconsolidation boundaries: key to persistent attenuation of fear memories.

31 Mar 2009 Dysregulation of the fear system is at the core of many psychiatric disorders. Much progress has been made in uncovering the neural basis of fear learning through studies in which associative emotional memories are formed by pairing an initially ...
rec_pub_19342552-extinction-reconsolidation-boundaries-key-persistent-attenuation-fear.htm

The propositional nature of human associative learning.

30 Mar 2009 The past 50 years have seen an accumulation of evidence suggesting that associative learning depends on high-level cognitive processes that give rise to propositional knowledge. Yet, many learning theorists maintain a belief in a learning mechanism ...
rec_pub_19386174-the-propositional-nature-human-associative-learning.htm

Post-training excitotoxic lesions of the dorsal hippocampus attenuate generalization in auditory delay fear conditioning.

30 Mar 2009 An abundance of evidence indicates a role for the dorsal hippocampus (DH) in learning and memory. Pavlovian fear conditioning provides a useful model system in which to investigate DH function because conditioning to polymodal contextual cues, but ...
rec_pub_19419430-post-training-excitotoxic-lesions-dorsal-hippocampus-attenuate.htm

Critical role of insular cortex in taste but not odour aversion memory.

30 Mar 2009 Conditioned odour aversion (COA) and conditioned taste aversion (CTA) result from the association of a novel odour or a novel taste with delayed visceral illness. The insular cortex (IC) is crucial for CTA memory, and the present experiments sought ...
rec_pub_19419428-critical-role-insular-cortex-taste-odour-aversion-memory.htm

Test of time: what if little Albert had escaped?

30 Mar 2009 Watson and Rayner's (1920) ;Little Albert' experiment has become one of the most famous studies in psychology. It is a staple of many general psychology textbooks and is part of the very fabric of the discipline's folklore. Despite this fame, the ...
rec_pub_19293325-test-time-little-albert-escaped.htm

Evaluative conditioning may incur attentional costs.

30 Mar 2009 Evaluative conditioning (EC) refers to changes in the liking of an affectively neutral stimulus (conditioned stimulus, or CS) after pairing this stimulus with an affect-laden stimulus (unconditioned stimulus, or US). Several authors proposed that EC ...
rec_pub_19364237-evaluative-conditioning-incur-attentional-costs.htm

Renewal and spontaneous recovery, but not latent inhibition, are mediated by gamma-aminobutyric acid in appetitive conditioning.

30 Mar 2009 Previous research has reported a role for the neurotransmitter gamma-aminobutyric acid (GABA) in the extinction and renewal of conditioned fear. Here, the authors examine whether GABA is involved in the acquisition, extinction, renewal, spontaneous ...
rec_pub_19364231-renewal-spontaneous-recovery-latent-inhibition-mediated-gamma.htm

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