Early olfactory experience induces structural changes in the primary olfactory center of an insect brain
- Autores
- Arenas, Andres; Giurfa, Martín; Sandoz, Jean Christophe; Hourcade, B.; Devaud, J. M.; Farina, Walter Marcelo
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The antennal lobe (AL) is the first olfactory center of the insect brain and is constituted of different functional units, the glomeruli. In the AL, odors are coded as spatiotemporal patterns of glomerular activity. In honeybees, olfactory learning during early adulthood modifies neural activity in the AL on a long-term scale and also enhances later memory retention. By means of behavioral experiments, we first verified that olfactory learning between the fifth and eighth day of adulthood induces better retention performances at a late adult stage than the same experience acquired before or after this period. We checked that the specificity of memory for the odorants used was improved. We then studied whether such early olfactory learning also induces long-term structural changes in the AL consistent with the formation of long-term olfactory memories. We also measured the volume of 15 identified glomeruli in the ALs of 17-day-old honeybees that either experienced an odor associated with sucrose solution between the fifth and eighth day of adulthood or were left untreated. We found that early olfactory experience induces glomerulus-selective increases in volume that were specific to the learned odor. By comparing our volumetric measures with calcium-imaging recordings from a previous study, performed in 17-day-old bees subjected to the same treatment and experimental conditions, we found that glomeruli that showed structural changes after early learning were those that exhibited a significant increase in neural activity. Our results make evident a correlation between structural and functional changes in the AL following early olfactory learning.
Fil: Arenas, Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina
Fil: Giurfa, Martín. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Sandoz, Jean Christophe. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Hourcade, B.. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Devaud, J. M.. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Farina, Walter Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina - Materia
-
Antennal Lobe
Olfaction
Associative Learning
Early Experiences - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/20313
Ver los metadatos del registro completo
id |
CONICETDig_9fb68146f6f5b9a69a808cc76562078c |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/20313 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Early olfactory experience induces structural changes in the primary olfactory center of an insect brainArenas, AndresGiurfa, MartínSandoz, Jean ChristopheHourcade, B.Devaud, J. M.Farina, Walter MarceloAntennal LobeOlfactionAssociative LearningEarly Experienceshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The antennal lobe (AL) is the first olfactory center of the insect brain and is constituted of different functional units, the glomeruli. In the AL, odors are coded as spatiotemporal patterns of glomerular activity. In honeybees, olfactory learning during early adulthood modifies neural activity in the AL on a long-term scale and also enhances later memory retention. By means of behavioral experiments, we first verified that olfactory learning between the fifth and eighth day of adulthood induces better retention performances at a late adult stage than the same experience acquired before or after this period. We checked that the specificity of memory for the odorants used was improved. We then studied whether such early olfactory learning also induces long-term structural changes in the AL consistent with the formation of long-term olfactory memories. We also measured the volume of 15 identified glomeruli in the ALs of 17-day-old honeybees that either experienced an odor associated with sucrose solution between the fifth and eighth day of adulthood or were left untreated. We found that early olfactory experience induces glomerulus-selective increases in volume that were specific to the learned odor. By comparing our volumetric measures with calcium-imaging recordings from a previous study, performed in 17-day-old bees subjected to the same treatment and experimental conditions, we found that glomeruli that showed structural changes after early learning were those that exhibited a significant increase in neural activity. Our results make evident a correlation between structural and functional changes in the AL following early olfactory learning.Fil: Arenas, Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; ArgentinaFil: Giurfa, Martín. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; FranciaFil: Sandoz, Jean Christophe. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; FranciaFil: Hourcade, B.. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; FranciaFil: Devaud, J. M.. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; FranciaFil: Farina, Walter Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; ArgentinaWiley2012-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/20313Arenas, Andres; Giurfa, Martín; Sandoz, Jean Christophe; Hourcade, B.; Devaud, J. M.; et al.; Early olfactory experience induces structural changes in the primary olfactory center of an insect brain; Wiley; European Journal Of Neuroscience; 35; 5; 2-2012; 682-6900953-816XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1460-9568.2012.07999.xinfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1460-9568.2012.07999.x/abstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:15:38Zoai:ri.conicet.gov.ar:11336/20313instacron: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:34982025-09-29 10:15:38.706CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Early olfactory experience induces structural changes in the primary olfactory center of an insect brain |
title |
Early olfactory experience induces structural changes in the primary olfactory center of an insect brain |
spellingShingle |
Early olfactory experience induces structural changes in the primary olfactory center of an insect brain Arenas, Andres Antennal Lobe Olfaction Associative Learning Early Experiences |
title_short |
Early olfactory experience induces structural changes in the primary olfactory center of an insect brain |
title_full |
Early olfactory experience induces structural changes in the primary olfactory center of an insect brain |
title_fullStr |
Early olfactory experience induces structural changes in the primary olfactory center of an insect brain |
title_full_unstemmed |
Early olfactory experience induces structural changes in the primary olfactory center of an insect brain |
title_sort |
Early olfactory experience induces structural changes in the primary olfactory center of an insect brain |
dc.creator.none.fl_str_mv |
Arenas, Andres Giurfa, Martín Sandoz, Jean Christophe Hourcade, B. Devaud, J. M. Farina, Walter Marcelo |
author |
Arenas, Andres |
author_facet |
Arenas, Andres Giurfa, Martín Sandoz, Jean Christophe Hourcade, B. Devaud, J. M. Farina, Walter Marcelo |
author_role |
author |
author2 |
Giurfa, Martín Sandoz, Jean Christophe Hourcade, B. Devaud, J. M. Farina, Walter Marcelo |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Antennal Lobe Olfaction Associative Learning Early Experiences |
topic |
Antennal Lobe Olfaction Associative Learning Early Experiences |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The antennal lobe (AL) is the first olfactory center of the insect brain and is constituted of different functional units, the glomeruli. In the AL, odors are coded as spatiotemporal patterns of glomerular activity. In honeybees, olfactory learning during early adulthood modifies neural activity in the AL on a long-term scale and also enhances later memory retention. By means of behavioral experiments, we first verified that olfactory learning between the fifth and eighth day of adulthood induces better retention performances at a late adult stage than the same experience acquired before or after this period. We checked that the specificity of memory for the odorants used was improved. We then studied whether such early olfactory learning also induces long-term structural changes in the AL consistent with the formation of long-term olfactory memories. We also measured the volume of 15 identified glomeruli in the ALs of 17-day-old honeybees that either experienced an odor associated with sucrose solution between the fifth and eighth day of adulthood or were left untreated. We found that early olfactory experience induces glomerulus-selective increases in volume that were specific to the learned odor. By comparing our volumetric measures with calcium-imaging recordings from a previous study, performed in 17-day-old bees subjected to the same treatment and experimental conditions, we found that glomeruli that showed structural changes after early learning were those that exhibited a significant increase in neural activity. Our results make evident a correlation between structural and functional changes in the AL following early olfactory learning. Fil: Arenas, Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina Fil: Giurfa, Martín. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; Francia Fil: Sandoz, Jean Christophe. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; Francia Fil: Hourcade, B.. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; Francia Fil: Devaud, J. M.. Université de Toulouse; Francia. Centre National de la Recherche Scientifique; Francia Fil: Farina, Walter Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina |
description |
The antennal lobe (AL) is the first olfactory center of the insect brain and is constituted of different functional units, the glomeruli. In the AL, odors are coded as spatiotemporal patterns of glomerular activity. In honeybees, olfactory learning during early adulthood modifies neural activity in the AL on a long-term scale and also enhances later memory retention. By means of behavioral experiments, we first verified that olfactory learning between the fifth and eighth day of adulthood induces better retention performances at a late adult stage than the same experience acquired before or after this period. We checked that the specificity of memory for the odorants used was improved. We then studied whether such early olfactory learning also induces long-term structural changes in the AL consistent with the formation of long-term olfactory memories. We also measured the volume of 15 identified glomeruli in the ALs of 17-day-old honeybees that either experienced an odor associated with sucrose solution between the fifth and eighth day of adulthood or were left untreated. We found that early olfactory experience induces glomerulus-selective increases in volume that were specific to the learned odor. By comparing our volumetric measures with calcium-imaging recordings from a previous study, performed in 17-day-old bees subjected to the same treatment and experimental conditions, we found that glomeruli that showed structural changes after early learning were those that exhibited a significant increase in neural activity. Our results make evident a correlation between structural and functional changes in the AL following early olfactory learning. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-02 |
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/11336/20313 Arenas, Andres; Giurfa, Martín; Sandoz, Jean Christophe; Hourcade, B.; Devaud, J. M.; et al.; Early olfactory experience induces structural changes in the primary olfactory center of an insect brain; Wiley; European Journal Of Neuroscience; 35; 5; 2-2012; 682-690 0953-816X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/20313 |
identifier_str_mv |
Arenas, Andres; Giurfa, Martín; Sandoz, Jean Christophe; Hourcade, B.; Devaud, J. M.; et al.; Early olfactory experience induces structural changes in the primary olfactory center of an insect brain; Wiley; European Journal Of Neuroscience; 35; 5; 2-2012; 682-690 0953-816X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1460-9568.2012.07999.x info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1460-9568.2012.07999.x/abstract |
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 application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
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_ |
1844614094059995136 |
score |
13.070432 |