Early olfactory experience induces structural changes in the primary olfactory center of an insect brain

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...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Arenas, Andrés, Giurfa, Martín, Farina, Walter Marcelo
Publicado:	2012
Materias:	Antennal lobe Associative learning Early experiences Honeybee Memory retrieval Olfaction animal behavior animal experiment animal tissue antenna (organ) article controlled study electroencephalogram experiential learning experimental animal glomerular structure honeybee long term memory memory consolidation nonhuman olfactory cortex olfactory memory olfactory nervous system priority journal volumetry Animals Animals, Newborn Arthropod Antennae Bees Brain Insects Learning Odors Olfactory Pathways Olfactory Perception
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0953816X_v35_n5_p682_Arenas http://hdl.handle.net/20.500.12110/paper_0953816X_v35_n5_p682_Arenas
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_0953816X_v35_n5_p682_Arenas
record_format	dspace
spelling	paper:paper_0953816X_v35_n5_p682_Arenas2023-06-08T15:55:31Z Early olfactory experience induces structural changes in the primary olfactory center of an insect brain Arenas, Andrés Giurfa, Martín Farina, Walter Marcelo Antennal lobe Associative learning Early experiences Honeybee Memory retrieval Olfaction animal behavior animal experiment animal tissue antenna (organ) article controlled study electroencephalogram experiential learning experimental animal glomerular structure honeybee long term memory memory consolidation nonhuman olfactory cortex olfactory memory olfactory nervous system priority journal volumetry Animals Animals, Newborn Arthropod Antennae Bees Brain Insects Learning Odors Olfactory Pathways Olfactory Perception 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. © 2012 The Authors. European Journal of Neuroscience © 2012 Federation of European Neuroscience Societies and Blackwell Publishing Ltd. Fil:Arenas, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Giurfa, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Farina, W.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0953816X_v35_n5_p682_Arenas http://hdl.handle.net/20.500.12110/paper_0953816X_v35_n5_p682_Arenas
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Antennal lobe Associative learning Early experiences Honeybee Memory retrieval Olfaction animal behavior animal experiment animal tissue antenna (organ) article controlled study electroencephalogram experiential learning experimental animal glomerular structure honeybee long term memory memory consolidation nonhuman olfactory cortex olfactory memory olfactory nervous system priority journal volumetry Animals Animals, Newborn Arthropod Antennae Bees Brain Insects Learning Odors Olfactory Pathways Olfactory Perception
spellingShingle	Antennal lobe Associative learning Early experiences Honeybee Memory retrieval Olfaction animal behavior animal experiment animal tissue antenna (organ) article controlled study electroencephalogram experiential learning experimental animal glomerular structure honeybee long term memory memory consolidation nonhuman olfactory cortex olfactory memory olfactory nervous system priority journal volumetry Animals Animals, Newborn Arthropod Antennae Bees Brain Insects Learning Odors Olfactory Pathways Olfactory Perception Arenas, Andrés Giurfa, Martín Farina, Walter Marcelo Early olfactory experience induces structural changes in the primary olfactory center of an insect brain
topic_facet	Antennal lobe Associative learning Early experiences Honeybee Memory retrieval Olfaction animal behavior animal experiment animal tissue antenna (organ) article controlled study electroencephalogram experiential learning experimental animal glomerular structure honeybee long term memory memory consolidation nonhuman olfactory cortex olfactory memory olfactory nervous system priority journal volumetry Animals Animals, Newborn Arthropod Antennae Bees Brain Insects Learning Odors Olfactory Pathways Olfactory Perception
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. © 2012 The Authors. European Journal of Neuroscience © 2012 Federation of European Neuroscience Societies and Blackwell Publishing Ltd.
author	Arenas, Andrés Giurfa, Martín Farina, Walter Marcelo
author_facet	Arenas, Andrés Giurfa, Martín Farina, Walter Marcelo
author_sort	Arenas, Andrés
title	Early olfactory experience induces structural changes in the primary olfactory center of an insect brain
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
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0953816X_v35_n5_p682_Arenas http://hdl.handle.net/20.500.12110/paper_0953816X_v35_n5_p682_Arenas
work_keys_str_mv	AT arenasandres earlyolfactoryexperienceinducesstructuralchangesintheprimaryolfactorycenterofaninsectbrain AT giurfamartin earlyolfactoryexperienceinducesstructuralchangesintheprimaryolfactorycenterofaninsectbrain AT farinawaltermarcelo earlyolfactoryexperienceinducesstructuralchangesintheprimaryolfactorycenterofaninsectbrain
_version_	1768543333024530432

Early olfactory experience induces structural changes in the primary olfactory center of an insect brain

Ejemplares similares