Journal article
An Immediate-Shock Freezing Deficit With Discrete Cues: A Possible Role for Unconditioned Stimulus Processing Mechanisms
Journal of experimental psychology. Animal behavior processes, Vol.27(4), pp.394-406
10/2001
DOI: 10.1037/0097-7403.27.4.394
PMID: 11676088
Abstract
Five experiments with C57BL/6 mice (
Mus musculus
) investigated whether failures in shock processing might contribute to deficits in freezing that occur after an animal receives a shock immediately on exposure to a conditioning context. Experiment 1 found that more contextual freezing resulted from delayed shocks than from immediate shocks across 4 shock intensities. Experiment 2 extended the immediate-shock freezing deficit to discrete stimuli. Experiment 3 found that preexposure to the to-be-conditioned cue did not facilitate immediate cued conditioning. Experiment 4 found that context preexposure enhanced context-evoked fear after an immediate shock. Experiment 5 found that context preexposure also enhanced immediate cued conditioning. These findings are problematic for current theories of the immediate-shock freezing deficit that focus exclusively on processing of the conditioned stimulus, and they suggest that failures in shock processing may contribute to the deficit.
Details
- Title: Subtitle
- An Immediate-Shock Freezing Deficit With Discrete Cues: A Possible Role for Unconditioned Stimulus Processing Mechanisms
- Creators
- K. Matthew Lattal - Department of Biology, University of PennsylvaniaTed Abel - Department of Biology, University of Pennsylvania
- Resource Type
- Journal article
- Publication Details
- Journal of experimental psychology. Animal behavior processes, Vol.27(4), pp.394-406
- DOI
- 10.1037/0097-7403.27.4.394
- PMID
- 11676088
- NLM abbreviation
- J Exp Psychol Anim Behav Process
- ISSN
- 0097-7403
- eISSN
- 1939-2184
- Publisher
- American Psychological Association
- Language
- English
- Date published
- 10/2001
- Academic Unit
- Molecular Physiology and Biophysics; Psychiatry; Psychological and Brain Sciences; Iowa Neuroscience Institute; Neuroscience and Pharmacology; Biochemistry and Molecular Biology
- Record Identifier
- 9984065732402771
Metrics
40 Record Views