Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality

Autores
Freidin, Esteban; Cuello, Marina Ines; Kacelnik, Alex
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In a successive negative contrast (SNC) procedure, subjects used to a familiar contingency are unexpectedly shifted to a less favourable one. Typically, mammals in the new condition show lower anticipatory and consummatory responses than controls that only experience the low contingency, but similar experiments in birds have failed to show SNC. We investigated SNC in European starlings, Sturnus vulgaris. In experiment 1, birds that were shifted from mealworms (preferred food) to turkey crumbs (less preferred food) consumed less of the turkey crumbs, and showed elevated activity and exploratory feeder probing with respect to unshifted starlings exposed throughout to turkey crumbs. This is the first report of consummatory SNC in birds. In experiment 2, two groups differed in the amount of information. Initially, both groups encountered simultaneously one hopper with mealworms and three with turkey crumbs. The mealworm hopper was colour coded in group ‘cued’ but not in group ‘uncued’. After a shift, all four feeders contained turkey crumbs and were signalled by the colour associated with turkey crumbs before the shift. The two groups did not differ in postshift consumption, and increased overall activity similarly after the shift. Exploratory feeder probing, however, increased significantly less in group cued than in group uncued, consistent with the view that informed animals adjusted faster (ceased searching for the preferred food) to the new conditions. The dissociation between exploration and consumption in their sensitivity to available information during the reward downshift is discussed in terms of the adaptive implications of SNC.
Fil: Freidin, Esteban. University of Oxford; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cuello, Marina Ines. University of Oxford; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Centro Interdisciplinario de Investigaciones en Psicología Matemática y Experimental Dr. Horacio J. A. Rimoldi; Argentina
Fil: Kacelnik, Alex. University of Oxford; Reino Unido
Materia
Consumption
Exploration
Starling
Succesive Negative Contrast
Sturnus Vulgaris
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/26804

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spelling Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food qualityFreidin, EstebanCuello, Marina InesKacelnik, AlexConsumptionExplorationStarlingSuccesive Negative ContrastSturnus Vulgarishttps://purl.org/becyt/ford/5.1https://purl.org/becyt/ford/5In a successive negative contrast (SNC) procedure, subjects used to a familiar contingency are unexpectedly shifted to a less favourable one. Typically, mammals in the new condition show lower anticipatory and consummatory responses than controls that only experience the low contingency, but similar experiments in birds have failed to show SNC. We investigated SNC in European starlings, Sturnus vulgaris. In experiment 1, birds that were shifted from mealworms (preferred food) to turkey crumbs (less preferred food) consumed less of the turkey crumbs, and showed elevated activity and exploratory feeder probing with respect to unshifted starlings exposed throughout to turkey crumbs. This is the first report of consummatory SNC in birds. In experiment 2, two groups differed in the amount of information. Initially, both groups encountered simultaneously one hopper with mealworms and three with turkey crumbs. The mealworm hopper was colour coded in group ‘cued’ but not in group ‘uncued’. After a shift, all four feeders contained turkey crumbs and were signalled by the colour associated with turkey crumbs before the shift. The two groups did not differ in postshift consumption, and increased overall activity similarly after the shift. Exploratory feeder probing, however, increased significantly less in group cued than in group uncued, consistent with the view that informed animals adjusted faster (ceased searching for the preferred food) to the new conditions. The dissociation between exploration and consumption in their sensitivity to available information during the reward downshift is discussed in terms of the adaptive implications of SNC.Fil: Freidin, Esteban. University of Oxford; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cuello, Marina Ines. University of Oxford; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Centro Interdisciplinario de Investigaciones en Psicología Matemática y Experimental Dr. Horacio J. A. Rimoldi; ArgentinaFil: Kacelnik, Alex. University of Oxford; Reino UnidoElsevier2009-01info: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/11336/26804Freidin, Esteban; Cuello, Marina Ines; Kacelnik, Alex; Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality; Elsevier; Animal Behaviour; 77; 4; 1-2009; 857-8650003-3472CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.anbehav.2008.12.010info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0003347208005745info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:12:32Zoai:ri.conicet.gov.ar:11336/26804instacron: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 10:12:32.276CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality
title Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality
spellingShingle Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality
Freidin, Esteban
Consumption
Exploration
Starling
Succesive Negative Contrast
Sturnus Vulgaris
title_short Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality
title_full Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality
title_fullStr Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality
title_full_unstemmed Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality
title_sort Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality
dc.creator.none.fl_str_mv Freidin, Esteban
Cuello, Marina Ines
Kacelnik, Alex
author Freidin, Esteban
author_facet Freidin, Esteban
Cuello, Marina Ines
Kacelnik, Alex
author_role author
author2 Cuello, Marina Ines
Kacelnik, Alex
author2_role author
author
dc.subject.none.fl_str_mv Consumption
Exploration
Starling
Succesive Negative Contrast
Sturnus Vulgaris
topic Consumption
Exploration
Starling
Succesive Negative Contrast
Sturnus Vulgaris
purl_subject.fl_str_mv https://purl.org/becyt/ford/5.1
https://purl.org/becyt/ford/5
dc.description.none.fl_txt_mv In a successive negative contrast (SNC) procedure, subjects used to a familiar contingency are unexpectedly shifted to a less favourable one. Typically, mammals in the new condition show lower anticipatory and consummatory responses than controls that only experience the low contingency, but similar experiments in birds have failed to show SNC. We investigated SNC in European starlings, Sturnus vulgaris. In experiment 1, birds that were shifted from mealworms (preferred food) to turkey crumbs (less preferred food) consumed less of the turkey crumbs, and showed elevated activity and exploratory feeder probing with respect to unshifted starlings exposed throughout to turkey crumbs. This is the first report of consummatory SNC in birds. In experiment 2, two groups differed in the amount of information. Initially, both groups encountered simultaneously one hopper with mealworms and three with turkey crumbs. The mealworm hopper was colour coded in group ‘cued’ but not in group ‘uncued’. After a shift, all four feeders contained turkey crumbs and were signalled by the colour associated with turkey crumbs before the shift. The two groups did not differ in postshift consumption, and increased overall activity similarly after the shift. Exploratory feeder probing, however, increased significantly less in group cued than in group uncued, consistent with the view that informed animals adjusted faster (ceased searching for the preferred food) to the new conditions. The dissociation between exploration and consumption in their sensitivity to available information during the reward downshift is discussed in terms of the adaptive implications of SNC.
Fil: Freidin, Esteban. University of Oxford; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cuello, Marina Ines. University of Oxford; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Centro Interdisciplinario de Investigaciones en Psicología Matemática y Experimental Dr. Horacio J. A. Rimoldi; Argentina
Fil: Kacelnik, Alex. University of Oxford; Reino Unido
description In a successive negative contrast (SNC) procedure, subjects used to a familiar contingency are unexpectedly shifted to a less favourable one. Typically, mammals in the new condition show lower anticipatory and consummatory responses than controls that only experience the low contingency, but similar experiments in birds have failed to show SNC. We investigated SNC in European starlings, Sturnus vulgaris. In experiment 1, birds that were shifted from mealworms (preferred food) to turkey crumbs (less preferred food) consumed less of the turkey crumbs, and showed elevated activity and exploratory feeder probing with respect to unshifted starlings exposed throughout to turkey crumbs. This is the first report of consummatory SNC in birds. In experiment 2, two groups differed in the amount of information. Initially, both groups encountered simultaneously one hopper with mealworms and three with turkey crumbs. The mealworm hopper was colour coded in group ‘cued’ but not in group ‘uncued’. After a shift, all four feeders contained turkey crumbs and were signalled by the colour associated with turkey crumbs before the shift. The two groups did not differ in postshift consumption, and increased overall activity similarly after the shift. Exploratory feeder probing, however, increased significantly less in group cued than in group uncued, consistent with the view that informed animals adjusted faster (ceased searching for the preferred food) to the new conditions. The dissociation between exploration and consumption in their sensitivity to available information during the reward downshift is discussed in terms of the adaptive implications of SNC.
publishDate 2009
dc.date.none.fl_str_mv 2009-01
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/11336/26804
Freidin, Esteban; Cuello, Marina Ines; Kacelnik, Alex; Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality; Elsevier; Animal Behaviour; 77; 4; 1-2009; 857-865
0003-3472
CONICET Digital
CONICET
url http://hdl.handle.net/11336/26804
identifier_str_mv Freidin, Esteban; Cuello, Marina Ines; Kacelnik, Alex; Successive negative contrast in a bird: starlings' behaviour after unpredictable negative changes in food quality; Elsevier; Animal Behaviour; 77; 4; 1-2009; 857-865
0003-3472
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.anbehav.2008.12.010
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0003347208005745
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
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