A developmental analysis of contextual fear conditioning
Contextual fear conditioning by 18‐ and 23‐day‐old rats was compared in two training contexts, a transparent Plexiglas chamber or a black Plexiglas chamber. As measured by a conditioned defensive freezing response, older rats displayed more contextual fear than younger rats. At both ages conditionin...
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Veröffentlicht in: | Developmental psychobiology 1996-03, Vol.29 (2), p.87-100 |
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description | Contextual fear conditioning by 18‐ and 23‐day‐old rats was compared in two training contexts, a transparent Plexiglas chamber or a black Plexiglas chamber. As measured by a conditioned defensive freezing response, older rats displayed more contextual fear than younger rats. At both ages conditioning was (a) stronger in the black chamber than in the clear chamber, (b) a nonmonotonic function of retention interval, with freezing being greater at the immediate and 24‐hr retention interval than at the 10‐min interval, and (c) preexposure to the context 24 hr before conditioning enhanced conditioned freezing observed at the 10‐min retention interval. Additional experiments suggest that rats at both ages acquire independent representations of the visual and tactile features of the context. These results support Rudy and Morledge's (1994) hypothesis that contextual fear conditioning is mediated by both a short‐term and a long‐term memory system and that long‐term memory for contextual fear requires the consolidation of a representation of the context. They challenge their view that there is a qualitative developmental difference in long‐term memory processes between 18‐ and 23‐day‐old rats. © 1996 John Wiley & Sons, Inc. |
doi_str_mv | 10.1002/(SICI)1098-2302(199603)29:2<87::AID-DEV1>3.0.CO;2-H |
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These results support Rudy and Morledge's (1994) hypothesis that contextual fear conditioning is mediated by both a short‐term and a long‐term memory system and that long‐term memory for contextual fear requires the consolidation of a representation of the context. They challenge their view that there is a qualitative developmental difference in long‐term memory processes between 18‐ and 23‐day‐old rats. © 1996 John Wiley & Sons, Inc.</description><identifier>ISSN: 0012-1630</identifier><identifier>EISSN: 1098-2302</identifier><identifier>DOI: 10.1002/(SICI)1098-2302(199603)29:2<87::AID-DEV1>3.0.CO;2-H</identifier><identifier>PMID: 8919089</identifier><language>eng</language><publisher>New York: John Wiley & Sons, Inc</publisher><subject>Aging - psychology ; Animals ; Animals, Suckling - psychology ; Association Learning ; Conditioning, Classical ; Fear ; Female ; Male ; Mental Recall ; Motor Activity ; Rats ; Retention (Psychology) ; Social Environment</subject><ispartof>Developmental psychobiology, 1996-03, Vol.29 (2), p.87-100</ispartof><rights>Copyright © 1996 John Wiley & Sons, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c3961-2a0681d01f6e310c6c7af7d8e46442e45283ff1ed43e74aa41efc078b8faedb63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F%28SICI%291098-2302%28199603%2929%3A2%3C87%3A%3AAID-DEV1%3E3.0.CO%3B2-H$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F%28SICI%291098-2302%28199603%2929%3A2%3C87%3A%3AAID-DEV1%3E3.0.CO%3B2-H$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/8919089$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pugh, C. Rachal</creatorcontrib><creatorcontrib>Rudy, Jerry W.</creatorcontrib><title>A developmental analysis of contextual fear conditioning</title><title>Developmental psychobiology</title><addtitle>Dev. Psychobiol</addtitle><description>Contextual fear conditioning by 18‐ and 23‐day‐old rats was compared in two training contexts, a transparent Plexiglas chamber or a black Plexiglas chamber. As measured by a conditioned defensive freezing response, older rats displayed more contextual fear than younger rats. At both ages conditioning was (a) stronger in the black chamber than in the clear chamber, (b) a nonmonotonic function of retention interval, with freezing being greater at the immediate and 24‐hr retention interval than at the 10‐min interval, and (c) preexposure to the context 24 hr before conditioning enhanced conditioned freezing observed at the 10‐min retention interval. Additional experiments suggest that rats at both ages acquire independent representations of the visual and tactile features of the context. These results support Rudy and Morledge's (1994) hypothesis that contextual fear conditioning is mediated by both a short‐term and a long‐term memory system and that long‐term memory for contextual fear requires the consolidation of a representation of the context. They challenge their view that there is a qualitative developmental difference in long‐term memory processes between 18‐ and 23‐day‐old rats. © 1996 John Wiley & Sons, Inc.</description><subject>Aging - psychology</subject><subject>Animals</subject><subject>Animals, Suckling - psychology</subject><subject>Association Learning</subject><subject>Conditioning, Classical</subject><subject>Fear</subject><subject>Female</subject><subject>Male</subject><subject>Mental Recall</subject><subject>Motor Activity</subject><subject>Rats</subject><subject>Retention (Psychology)</subject><subject>Social Environment</subject><issn>0012-1630</issn><issn>1098-2302</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kV1rE0EUhgdRalr9CUKupL3YeOYj85GKELa1iRYjVK14c5jsnpGtm924s6nm37trQrxQvBrew8vzwjOMnXMYcQDx4vRmns7PODibCAnilDunQZ4JNxEvrZlMpvOL5OLyE38lRzBKF-cimT1gg0P_IRsAcJFwLeExO47xrotcWXPEjqzjDqwbMDsd5nRPZb1eUdX6cugrX25jEYd1GGZ11dLPdtOdA_mmz3nRFnVVVF-fsEfBl5Ge7t8T9vH15Yd0llwvrubp9DrJpNM8ER605TnwoElyyHRmfDC5JaWVEqTGwsoQOOVKklHeK04hA2OXNnjKl1qesOc77rqpv28otrgqYkZl6SuqNxGNHSvpLHTFm10xa-oYGwq4boqVb7bIAXufiL1P7P1g7wd3PlE4FGgNYucTe58oETBddNdZR322n98sV5QfmHuBf1Z_FCVt_5r8_-I_Bn_njprsqEXsPuBA9c031EaaMd6-u8K3Sn4W72_f4Bf5C4W5npI</recordid><startdate>199603</startdate><enddate>199603</enddate><creator>Pugh, C. Rachal</creator><creator>Rudy, Jerry W.</creator><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>199603</creationdate><title>A developmental analysis of contextual fear conditioning</title><author>Pugh, C. Rachal ; Rudy, Jerry W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3961-2a0681d01f6e310c6c7af7d8e46442e45283ff1ed43e74aa41efc078b8faedb63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Aging - psychology</topic><topic>Animals</topic><topic>Animals, Suckling - psychology</topic><topic>Association Learning</topic><topic>Conditioning, Classical</topic><topic>Fear</topic><topic>Female</topic><topic>Male</topic><topic>Mental Recall</topic><topic>Motor Activity</topic><topic>Rats</topic><topic>Retention (Psychology)</topic><topic>Social Environment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pugh, C. Rachal</creatorcontrib><creatorcontrib>Rudy, Jerry W.</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Developmental psychobiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pugh, C. Rachal</au><au>Rudy, Jerry W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A developmental analysis of contextual fear conditioning</atitle><jtitle>Developmental psychobiology</jtitle><addtitle>Dev. Psychobiol</addtitle><date>1996-03</date><risdate>1996</risdate><volume>29</volume><issue>2</issue><spage>87</spage><epage>100</epage><pages>87-100</pages><issn>0012-1630</issn><eissn>1098-2302</eissn><abstract>Contextual fear conditioning by 18‐ and 23‐day‐old rats was compared in two training contexts, a transparent Plexiglas chamber or a black Plexiglas chamber. As measured by a conditioned defensive freezing response, older rats displayed more contextual fear than younger rats. At both ages conditioning was (a) stronger in the black chamber than in the clear chamber, (b) a nonmonotonic function of retention interval, with freezing being greater at the immediate and 24‐hr retention interval than at the 10‐min interval, and (c) preexposure to the context 24 hr before conditioning enhanced conditioned freezing observed at the 10‐min retention interval. Additional experiments suggest that rats at both ages acquire independent representations of the visual and tactile features of the context. These results support Rudy and Morledge's (1994) hypothesis that contextual fear conditioning is mediated by both a short‐term and a long‐term memory system and that long‐term memory for contextual fear requires the consolidation of a representation of the context. They challenge their view that there is a qualitative developmental difference in long‐term memory processes between 18‐ and 23‐day‐old rats. © 1996 John Wiley & Sons, Inc.</abstract><cop>New York</cop><pub>John Wiley & Sons, Inc</pub><pmid>8919089</pmid><doi>10.1002/(SICI)1098-2302(199603)29:2<87::AID-DEV1>3.0.CO;2-H</doi><tpages>14</tpages></addata></record> |
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subjects | Aging - psychology Animals Animals, Suckling - psychology Association Learning Conditioning, Classical Fear Female Male Mental Recall Motor Activity Rats Retention (Psychology) Social Environment |
title | A developmental analysis of contextual fear conditioning |
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