Enhanced retrieval of unpleasant memories influenced by shock controllability, shock sequence, and rat strain
The propensity to recall unpleasant events may be related to depression and posttraumatic stress disorder. This study examined the extent to which the recall of a previously unpleasant event (i.e., passive avoidance training) may be influenced by another aversive event. The other aversive event was...
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| Veröffentlicht in: | Biological psychiatry (1969) 1996-05, Vol.39 (9), p.808-813 |
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| container_title | Biological psychiatry (1969) |
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| creator | PARE, W. P |
| description | The propensity to recall unpleasant events may be related to depression and posttraumatic stress disorder. This study examined the extent to which the recall of a previously unpleasant event (i.e., passive avoidance training) may be influenced by another aversive event. The other aversive event was tail shock. Since the Wistar Kyoto (WKY) rat strain has been proposed as an animal model of depressive behavior, this study was conducted with WKY and Wistar rats. Parameters manipulated included shock controllability, shock sequence (i.e., tail shock before avoidance training versus tail shock after training), and rat strain. Performance of the passive avoidance (PA) response was greater in WKY rats. Exposure to inescapable tail shock was related to greater PA performance compared to exposure to escapable or no-shock treatments. Tail shock prior to PA training led to greater recall of the PA response. The magnitude of the PA response was influenced by the rat strain, shock controllability, and shock sequence. The applicability of these data to the memory bias phenomenon in depression is discussed. |
| doi_str_mv | 10.1016/0006-3223(95)00220-0 |
| format | Article |
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The magnitude of the PA response was influenced by the rat strain, shock controllability, and shock sequence. The applicability of these data to the memory bias phenomenon in depression is discussed.</description><identifier>ISSN: 0006-3223</identifier><identifier>EISSN: 1873-2402</identifier><identifier>DOI: 10.1016/0006-3223(95)00220-0</identifier><identifier>PMID: 8731522</identifier><identifier>CODEN: BIPCBF</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Animal ; Animals ; Avoidance Learning ; Biological and medical sciences ; depression ; Fear ; Fundamental and applied biological sciences. Psychology ; Helplessness, Learned ; Internal-External Control ; Learning. Memory ; Male ; Memory ; Mental Recall ; passive avoidance ; Psychology. Psychoanalysis. Psychiatry ; Psychology. 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P</creatorcontrib><title>Enhanced retrieval of unpleasant memories influenced by shock controllability, shock sequence, and rat strain</title><title>Biological psychiatry (1969)</title><addtitle>Biol Psychiatry</addtitle><description>The propensity to recall unpleasant events may be related to depression and posttraumatic stress disorder. This study examined the extent to which the recall of a previously unpleasant event (i.e., passive avoidance training) may be influenced by another aversive event. The other aversive event was tail shock. Since the Wistar Kyoto (WKY) rat strain has been proposed as an animal model of depressive behavior, this study was conducted with WKY and Wistar rats. Parameters manipulated included shock controllability, shock sequence (i.e., tail shock before avoidance training versus tail shock after training), and rat strain. Performance of the passive avoidance (PA) response was greater in WKY rats. Exposure to inescapable tail shock was related to greater PA performance compared to exposure to escapable or no-shock treatments. Tail shock prior to PA training led to greater recall of the PA response. The magnitude of the PA response was influenced by the rat strain, shock controllability, and shock sequence. The applicability of these data to the memory bias phenomenon in depression is discussed.</description><subject>Animal</subject><subject>Animals</subject><subject>Avoidance Learning</subject><subject>Biological and medical sciences</subject><subject>depression</subject><subject>Fear</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Helplessness, Learned</subject><subject>Internal-External Control</subject><subject>Learning. Memory</subject><subject>Male</subject><subject>Memory</subject><subject>Mental Recall</subject><subject>passive avoidance</subject><subject>Psychology. Psychoanalysis. Psychiatry</subject><subject>Psychology. 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| subjects | Animal Animals Avoidance Learning Biological and medical sciences depression Fear Fundamental and applied biological sciences. Psychology Helplessness, Learned Internal-External Control Learning. Memory Male Memory Mental Recall passive avoidance Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Rats Rats, Inbred WKY Rats, Wistar Retention (Psychology) shock control shock sequence Species Specificity Stress Disorders, Post-Traumatic - psychology Stress, Psychological - complications Stress, Psychological - psychology WKY rat |
| title | Enhanced retrieval of unpleasant memories influenced by shock controllability, shock sequence, and rat strain |
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