Spatial Memory in Long Evans and Rattus Norvegicus rats

Rodents in search of food use visual environmental signals and complex spatial strategies and do not return to previously-visited locations, known as the win-shift strategy. The solution to the Olton Octagonal Maze (OOM) involves Working Memory (WM). A modified OOM was used that allows for measuring...

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Autores principales:	BUSTOS M,GLORIA, BASOALTO B,EVELYN, PINTO-HAMUY,TERESA
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2003
Materias:	Long Term Memory Working Memory Olton 4X4 Long Evans Rats Rattus Norvegicus Rats
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602003000200009
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spelling	oai:scielo:S0716-976020030002000092003-11-19Spatial Memory in Long Evans and Rattus Norvegicus ratsBUSTOS M,GLORIABASOALTO B,EVELYNPINTO-HAMUY,TERESA Long Term Memory Working Memory Olton 4X4 Long Evans Rats Rattus Norvegicus Rats Rodents in search of food use visual environmental signals and complex spatial strategies and do not return to previously-visited locations, known as the win-shift strategy. The solution to the Olton Octagonal Maze (OOM) involves Working Memory (WM). A modified OOM was used that allows for measuring WM and Long Term Memory (LTM). The delayed spatial win-shift task consisted of a Training and Test phase separated by a delay. Prior to the Training phase, four arms were chosen at random and blocked, and food pellets were placed in the food cups of the four remaining open arms. Each rat was allowed to retrieve the pellets from the four open arms and then return to its home cage for the delay period (either 5 or 20 min). In the Test phase all 8 lanes were open, and the bait was placed in those blocked in the previous phase. Two experimental groups of rats, Long Evans and Norvegicus, and their corresponding control groups were trained. The experimental subjects performed Training-Delay-Test. The controls were only trained in the Test phase. Revisiting an arm previously explored in the 1st Phase was considered a LTM error. Revisiting an arm in the same trial constituted a WM error. It was concluded that the experimental groups do in fact possess LTM, with differences in favor of Norvegicus. There was no difference with respect to WM errors. The Norvegicus control group changes its strategy from allocentric to egocentric, which did not occur in the Long Evans control group.info:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.36 n.2 20032003-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602003000200009en10.4067/S0716-97602003000200009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Long Term Memory Working Memory Olton 4X4 Long Evans Rats Rattus Norvegicus Rats
spellingShingle	Long Term Memory Working Memory Olton 4X4 Long Evans Rats Rattus Norvegicus Rats BUSTOS M,GLORIA BASOALTO B,EVELYN PINTO-HAMUY,TERESA Spatial Memory in Long Evans and Rattus Norvegicus rats
description	Rodents in search of food use visual environmental signals and complex spatial strategies and do not return to previously-visited locations, known as the win-shift strategy. The solution to the Olton Octagonal Maze (OOM) involves Working Memory (WM). A modified OOM was used that allows for measuring WM and Long Term Memory (LTM). The delayed spatial win-shift task consisted of a Training and Test phase separated by a delay. Prior to the Training phase, four arms were chosen at random and blocked, and food pellets were placed in the food cups of the four remaining open arms. Each rat was allowed to retrieve the pellets from the four open arms and then return to its home cage for the delay period (either 5 or 20 min). In the Test phase all 8 lanes were open, and the bait was placed in those blocked in the previous phase. Two experimental groups of rats, Long Evans and Norvegicus, and their corresponding control groups were trained. The experimental subjects performed Training-Delay-Test. The controls were only trained in the Test phase. Revisiting an arm previously explored in the 1st Phase was considered a LTM error. Revisiting an arm in the same trial constituted a WM error. It was concluded that the experimental groups do in fact possess LTM, with differences in favor of Norvegicus. There was no difference with respect to WM errors. The Norvegicus control group changes its strategy from allocentric to egocentric, which did not occur in the Long Evans control group.
author	BUSTOS M,GLORIA BASOALTO B,EVELYN PINTO-HAMUY,TERESA
author_facet	BUSTOS M,GLORIA BASOALTO B,EVELYN PINTO-HAMUY,TERESA
author_sort	BUSTOS M,GLORIA
title	Spatial Memory in Long Evans and Rattus Norvegicus rats
title_short	Spatial Memory in Long Evans and Rattus Norvegicus rats
title_full	Spatial Memory in Long Evans and Rattus Norvegicus rats
title_fullStr	Spatial Memory in Long Evans and Rattus Norvegicus rats
title_full_unstemmed	Spatial Memory in Long Evans and Rattus Norvegicus rats
title_sort	spatial memory in long evans and rattus norvegicus rats
publisher	Sociedad de Biología de Chile
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602003000200009
work_keys_str_mv	AT bustosmgloria spatialmemoryinlongevansandrattusnorvegicusrats AT basoaltobevelyn spatialmemoryinlongevansandrattusnorvegicusrats AT pintohamuyteresa spatialmemoryinlongevansandrattusnorvegicusrats
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Spatial Memory in Long Evans and Rattus Norvegicus rats

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