Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats

Autores
Neto, Sebastião Pacheco Duque; Carneiro, Breno Tercio Santos; Valentinuzzi, Verónica Sandra; Araújo, John Fontenele
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyzed the effect of dissociation of the circadian rhythm of locomotor activity on the performance in two memory tasks in rats. One group of animals was maintained in a normal 24 h light-dark cycle of 12:12 (T24 group, control). A second group was housed in a 22 h cycle of 11:11 (T22 group, experimental), a condition which is known to produce dissociation of the circadian rhythm of locomotor activity in two components. Both groups were tested on two memory tasks: passive avoidance and object recognition. An additional control group, kept under constant darkness (DD group), was used for a passive avoidance task. Testing occurred 30 min (short-term memory - STM) and 24 h (T24 and DD group) or 22 h (T22 group) (long-term memory - LTM) after training. The T22 group showed impairment on the passive avoidance task (STM and LTM) compared with the T24 and DD groups. On the object recognition task, the T22 and T24 groups performed similarly in all the sessions. In conclusion, circadian rhythm dissociation induced a performance deficit in the passive avoidance task but had no effect on the object recognition task. We suggest that dissociation of the circadian rhythm of locomotor activity may selectively affect some emotional component related to fear and risk evaluation.
Fil: Neto, Sebastião Pacheco Duque. Universidade Federal do Rio Grande do Norte; Brasil
Fil: Carneiro, Breno Tercio Santos. Universidade Federal do Rio Grande do Norte; Brasil
Fil: Valentinuzzi, Verónica Sandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina
Fil: Araújo, John Fontenele. Universidade Federal do Rio Grande do Norte; Brasil
Materia
Circadian Rhythm
Dissociation
Learning And Memory
Rat
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/81036
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/81036
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in ratsNeto, Sebastião Pacheco DuqueCarneiro, Breno Tercio SantosValentinuzzi, Verónica SandraAraújo, John FonteneleCircadian RhythmDissociationLearning And MemoryRathttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We analyzed the effect of dissociation of the circadian rhythm of locomotor activity on the performance in two memory tasks in rats. One group of animals was maintained in a normal 24 h light-dark cycle of 12:12 (T24 group, control). A second group was housed in a 22 h cycle of 11:11 (T22 group, experimental), a condition which is known to produce dissociation of the circadian rhythm of locomotor activity in two components. Both groups were tested on two memory tasks: passive avoidance and object recognition. An additional control group, kept under constant darkness (DD group), was used for a passive avoidance task. Testing occurred 30 min (short-term memory - STM) and 24 h (T24 and DD group) or 22 h (T22 group) (long-term memory - LTM) after training. The T22 group showed impairment on the passive avoidance task (STM and LTM) compared with the T24 and DD groups. On the object recognition task, the T22 and T24 groups performed similarly in all the sessions. In conclusion, circadian rhythm dissociation induced a performance deficit in the passive avoidance task but had no effect on the object recognition task. We suggest that dissociation of the circadian rhythm of locomotor activity may selectively affect some emotional component related to fear and risk evaluation.Fil: Neto, Sebastião Pacheco Duque. Universidade Federal do Rio Grande do Norte; BrasilFil: Carneiro, Breno Tercio Santos. Universidade Federal do Rio Grande do Norte; BrasilFil: Valentinuzzi, Verónica Sandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; ArgentinaFil: Araújo, John Fontenele. Universidade Federal do Rio Grande do Norte; BrasilPergamon-Elsevier Science Ltd2008-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/81036Neto, Sebastião Pacheco Duque; Carneiro, Breno Tercio Santos; Valentinuzzi, Verónica Sandra; Araújo, John Fontenele; Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats; Pergamon-Elsevier Science Ltd; Physiology And Behavior; 94; 3; 6-2008; 523-5270031-9384CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.physbeh.2008.03.013info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0031938408000887info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:51:31Zoai:ri.conicet.gov.ar:11336/81036instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:51:31.638CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats
title Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats
spellingShingle Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats
Neto, Sebastião Pacheco Duque
Circadian Rhythm
Dissociation
Learning And Memory
Rat
title_short Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats
title_full Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats
title_fullStr Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats
title_full_unstemmed Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats
title_sort Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats
dc.creator.none.fl_str_mv Neto, Sebastião Pacheco Duque
Carneiro, Breno Tercio Santos
Valentinuzzi, Verónica Sandra
Araújo, John Fontenele
author Neto, Sebastião Pacheco Duque
author_facet Neto, Sebastião Pacheco Duque
Carneiro, Breno Tercio Santos
Valentinuzzi, Verónica Sandra
Araújo, John Fontenele
author_role author
author2 Carneiro, Breno Tercio Santos
Valentinuzzi, Verónica Sandra
Araújo, John Fontenele
author2_role author
author
author
dc.subject.none.fl_str_mv Circadian Rhythm
Dissociation
Learning And Memory
Rat
topic Circadian Rhythm
Dissociation
Learning And Memory
Rat
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We analyzed the effect of dissociation of the circadian rhythm of locomotor activity on the performance in two memory tasks in rats. One group of animals was maintained in a normal 24 h light-dark cycle of 12:12 (T24 group, control). A second group was housed in a 22 h cycle of 11:11 (T22 group, experimental), a condition which is known to produce dissociation of the circadian rhythm of locomotor activity in two components. Both groups were tested on two memory tasks: passive avoidance and object recognition. An additional control group, kept under constant darkness (DD group), was used for a passive avoidance task. Testing occurred 30 min (short-term memory - STM) and 24 h (T24 and DD group) or 22 h (T22 group) (long-term memory - LTM) after training. The T22 group showed impairment on the passive avoidance task (STM and LTM) compared with the T24 and DD groups. On the object recognition task, the T22 and T24 groups performed similarly in all the sessions. In conclusion, circadian rhythm dissociation induced a performance deficit in the passive avoidance task but had no effect on the object recognition task. We suggest that dissociation of the circadian rhythm of locomotor activity may selectively affect some emotional component related to fear and risk evaluation.
Fil: Neto, Sebastião Pacheco Duque. Universidade Federal do Rio Grande do Norte; Brasil
Fil: Carneiro, Breno Tercio Santos. Universidade Federal do Rio Grande do Norte; Brasil
Fil: Valentinuzzi, Verónica Sandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Secretaría de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina
Fil: Araújo, John Fontenele. Universidade Federal do Rio Grande do Norte; Brasil
description We analyzed the effect of dissociation of the circadian rhythm of locomotor activity on the performance in two memory tasks in rats. One group of animals was maintained in a normal 24 h light-dark cycle of 12:12 (T24 group, control). A second group was housed in a 22 h cycle of 11:11 (T22 group, experimental), a condition which is known to produce dissociation of the circadian rhythm of locomotor activity in two components. Both groups were tested on two memory tasks: passive avoidance and object recognition. An additional control group, kept under constant darkness (DD group), was used for a passive avoidance task. Testing occurred 30 min (short-term memory - STM) and 24 h (T24 and DD group) or 22 h (T22 group) (long-term memory - LTM) after training. The T22 group showed impairment on the passive avoidance task (STM and LTM) compared with the T24 and DD groups. On the object recognition task, the T22 and T24 groups performed similarly in all the sessions. In conclusion, circadian rhythm dissociation induced a performance deficit in the passive avoidance task but had no effect on the object recognition task. We suggest that dissociation of the circadian rhythm of locomotor activity may selectively affect some emotional component related to fear and risk evaluation.
publishDate 2008
dc.date.none.fl_str_mv 2008-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/81036
Neto, Sebastião Pacheco Duque; Carneiro, Breno Tercio Santos; Valentinuzzi, Verónica Sandra; Araújo, John Fontenele; Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats; Pergamon-Elsevier Science Ltd; Physiology And Behavior; 94; 3; 6-2008; 523-527
0031-9384
CONICET Digital
CONICET
url http://hdl.handle.net/11336/81036
identifier_str_mv Neto, Sebastião Pacheco Duque; Carneiro, Breno Tercio Santos; Valentinuzzi, Verónica Sandra; Araújo, John Fontenele; Dissociation of the circadian rhythm of locomotor activity in a 22 h light-dark cycle impairs passive avoidance but not object recognition memory in rats; Pergamon-Elsevier Science Ltd; Physiology And Behavior; 94; 3; 6-2008; 523-527
0031-9384
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physbeh.2008.03.013
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0031938408000887
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846083041733115904
score 13.22299

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