The anteromedial extrastriate complex is critical for the use of allocentric visual cues and in the retention of the Lashley III maze task in rats

The anteromedial extrastriate complex has been proposed to play an essential role in a spatial orientation system in rats. To gain more information about that possible role, in the present work, two questions were addressed: 1. Are allocentric visual cues relevant for acquisition of the orientation...

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Autores principales:	ESPINOZA-CIFUENTES,SERGIO, LEANDER ZEISE,MARC
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2008
Materias:	visuospatial memory anteromedial extrastriate complex Lashley III maze ibotenic acid rat
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602008000400006
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spelling	oai:scielo:S0716-976020080004000062009-06-16The anteromedial extrastriate complex is critical for the use of allocentric visual cues and in the retention of the Lashley III maze task in ratsESPINOZA-CIFUENTES,SERGIOLEANDER ZEISE,MARC visuospatial memory anteromedial extrastriate complex Lashley III maze ibotenic acid rat The anteromedial extrastriate complex has been proposed to play an essential role in a spatial orientation system in rats. To gain more information about that possible role, in the present work, two questions were addressed: 1. Are allocentric visual cues relevant for acquisition of the orientation task in the Lashley III maze? 2. Is this integration of allocentric inputs in the anteromedial visual complex relevant in the retention of this test? While a control group of rats was trained keeping the maze in the same position, the experimental group was trained with the maze rotated counterclockwise by 144 degrees from session to session. Control rats reached learning criterion significantly earlier and with less errors than the experimental ones (p<.05). After 11 sessions, rats of both groups received stereotaxic injections of ibotenic acid in the anteromedial complex. In the retention test one week after surgery, the control group, which had been able to learn using egocentric and allocentric visual cues, showed a greater déficit than the experimental animáis (p<.05). These results confirm the role of the anteromedial complex in the processing of visuospatial orientation tasks and demónstrate the integration of allocentric visual cues in the solution of those tasks.info:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.41 n.4 20082008-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602008000400006en10.4067/S0716-97602008000400006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	visuospatial memory anteromedial extrastriate complex Lashley III maze ibotenic acid rat
spellingShingle	visuospatial memory anteromedial extrastriate complex Lashley III maze ibotenic acid rat ESPINOZA-CIFUENTES,SERGIO LEANDER ZEISE,MARC The anteromedial extrastriate complex is critical for the use of allocentric visual cues and in the retention of the Lashley III maze task in rats
description	The anteromedial extrastriate complex has been proposed to play an essential role in a spatial orientation system in rats. To gain more information about that possible role, in the present work, two questions were addressed: 1. Are allocentric visual cues relevant for acquisition of the orientation task in the Lashley III maze? 2. Is this integration of allocentric inputs in the anteromedial visual complex relevant in the retention of this test? While a control group of rats was trained keeping the maze in the same position, the experimental group was trained with the maze rotated counterclockwise by 144 degrees from session to session. Control rats reached learning criterion significantly earlier and with less errors than the experimental ones (p<.05). After 11 sessions, rats of both groups received stereotaxic injections of ibotenic acid in the anteromedial complex. In the retention test one week after surgery, the control group, which had been able to learn using egocentric and allocentric visual cues, showed a greater déficit than the experimental animáis (p<.05). These results confirm the role of the anteromedial complex in the processing of visuospatial orientation tasks and demónstrate the integration of allocentric visual cues in the solution of those tasks.
author	ESPINOZA-CIFUENTES,SERGIO LEANDER ZEISE,MARC
author_facet	ESPINOZA-CIFUENTES,SERGIO LEANDER ZEISE,MARC
author_sort	ESPINOZA-CIFUENTES,SERGIO
title	The anteromedial extrastriate complex is critical for the use of allocentric visual cues and in the retention of the Lashley III maze task in rats
title_short	The anteromedial extrastriate complex is critical for the use of allocentric visual cues and in the retention of the Lashley III maze task in rats
title_full	The anteromedial extrastriate complex is critical for the use of allocentric visual cues and in the retention of the Lashley III maze task in rats
title_fullStr	The anteromedial extrastriate complex is critical for the use of allocentric visual cues and in the retention of the Lashley III maze task in rats
title_full_unstemmed	The anteromedial extrastriate complex is critical for the use of allocentric visual cues and in the retention of the Lashley III maze task in rats
title_sort	anteromedial extrastriate complex is critical for the use of allocentric visual cues and in the retention of the lashley iii maze task in rats
publisher	Sociedad de Biología de Chile
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602008000400006
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The anteromedial extrastriate complex is critical for the use of allocentric visual cues and in the retention of the Lashley III maze task in rats

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