Lateralized Declarative-Like Memory for Conditional Spatial Information in Domestic Chicks (<i>Gallus gallus</i>)

Declarative memory is an explicit, long-term memory system, used in generalization and categorization processes and to make inferences and to predict probable outcomes in novel situations. Animals have been proven to possess a similar declarative-like memory system. Here, we investigated declarative...

Full description

Bibliographic Details
Main Authors: Maria Loconsole, Elena Mascalzoni, Jonathan Niall Daisley, Massimo De Agrò, Giorgio Vallortigara, Lucia Regolin
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/13/5/906
_version_ 1797533404340682752
author Maria Loconsole
Elena Mascalzoni
Jonathan Niall Daisley
Massimo De Agrò
Giorgio Vallortigara
Lucia Regolin
author_facet Maria Loconsole
Elena Mascalzoni
Jonathan Niall Daisley
Massimo De Agrò
Giorgio Vallortigara
Lucia Regolin
author_sort Maria Loconsole
collection DOAJ
description Declarative memory is an explicit, long-term memory system, used in generalization and categorization processes and to make inferences and to predict probable outcomes in novel situations. Animals have been proven to possess a similar declarative-like memory system. Here, we investigated declarative-like memory representations in young chicks, assessing the roles of the two hemispheres in memory recollection. Chicks were exposed for three consecutive days to two different arenas (blue/yellow), where they were presented with two panels, each depicting a different stimulus (cross/square). Only one of the two stimuli was rewarded, i.e., it hid a food reward. The position (left/right) of the rewarded stimulus remained constant within the same arena, but it differed between the two arenas (e.g., reward always on the left in the blue context and on the right in the yellow one). At test, both panels depicted the rewarded stimulus, thus chicks had to remember food position depending on the previously experienced contextual rule. Both binocular and right-eye monocularly-tested chicks correctly located the reward, whereas left-eye monocularly-tested chicks performed at the chance level. We showed that declarative-like memory of integrated information is available at early stages of development, and it is associated with a left hemisphere dominance.
first_indexed 2024-03-10T11:15:06Z
format Article
id doaj.art-51c4a94fc61e44fda27e8d222a1fa464
institution Directory Open Access Journal
issn 2073-8994
language English
last_indexed 2024-03-10T11:15:06Z
publishDate 2021-05-01
publisher MDPI AG
record_format Article
series Symmetry
spelling doaj.art-51c4a94fc61e44fda27e8d222a1fa4642023-11-21T20:30:48ZengMDPI AGSymmetry2073-89942021-05-0113590610.3390/sym13050906Lateralized Declarative-Like Memory for Conditional Spatial Information in Domestic Chicks (<i>Gallus gallus</i>)Maria Loconsole0Elena Mascalzoni1Jonathan Niall Daisley2Massimo De Agrò3Giorgio Vallortigara4Lucia Regolin5Department of General Psychology, University of Padua, 35131 Padua, ItalyDepartment of General Psychology, University of Padua, 35131 Padua, ItalyDepartment of General Psychology, University of Padua, 35131 Padua, ItalyDepartment of General Psychology, University of Padua, 35131 Padua, ItalyCentre for Mind/Brain Sciences, University of Trento, 38068 Trento, ItalyDepartment of General Psychology, University of Padua, 35131 Padua, ItalyDeclarative memory is an explicit, long-term memory system, used in generalization and categorization processes and to make inferences and to predict probable outcomes in novel situations. Animals have been proven to possess a similar declarative-like memory system. Here, we investigated declarative-like memory representations in young chicks, assessing the roles of the two hemispheres in memory recollection. Chicks were exposed for three consecutive days to two different arenas (blue/yellow), where they were presented with two panels, each depicting a different stimulus (cross/square). Only one of the two stimuli was rewarded, i.e., it hid a food reward. The position (left/right) of the rewarded stimulus remained constant within the same arena, but it differed between the two arenas (e.g., reward always on the left in the blue context and on the right in the yellow one). At test, both panels depicted the rewarded stimulus, thus chicks had to remember food position depending on the previously experienced contextual rule. Both binocular and right-eye monocularly-tested chicks correctly located the reward, whereas left-eye monocularly-tested chicks performed at the chance level. We showed that declarative-like memory of integrated information is available at early stages of development, and it is associated with a left hemisphere dominance.https://www.mdpi.com/2073-8994/13/5/906hemispheric dominancebrain lateralizationconditional-spatial memorydeclarative-like memorylong-term memory systemdomestic chick
spellingShingle Maria Loconsole
Elena Mascalzoni
Jonathan Niall Daisley
Massimo De Agrò
Giorgio Vallortigara
Lucia Regolin
Lateralized Declarative-Like Memory for Conditional Spatial Information in Domestic Chicks (<i>Gallus gallus</i>)
Symmetry
hemispheric dominance
brain lateralization
conditional-spatial memory
declarative-like memory
long-term memory system
domestic chick
title Lateralized Declarative-Like Memory for Conditional Spatial Information in Domestic Chicks (<i>Gallus gallus</i>)
title_full Lateralized Declarative-Like Memory for Conditional Spatial Information in Domestic Chicks (<i>Gallus gallus</i>)
title_fullStr Lateralized Declarative-Like Memory for Conditional Spatial Information in Domestic Chicks (<i>Gallus gallus</i>)
title_full_unstemmed Lateralized Declarative-Like Memory for Conditional Spatial Information in Domestic Chicks (<i>Gallus gallus</i>)
title_short Lateralized Declarative-Like Memory for Conditional Spatial Information in Domestic Chicks (<i>Gallus gallus</i>)
title_sort lateralized declarative like memory for conditional spatial information in domestic chicks i gallus gallus i
topic hemispheric dominance
brain lateralization
conditional-spatial memory
declarative-like memory
long-term memory system
domestic chick
url https://www.mdpi.com/2073-8994/13/5/906
work_keys_str_mv AT marialoconsole lateralizeddeclarativelikememoryforconditionalspatialinformationindomesticchicksigallusgallusi
AT elenamascalzoni lateralizeddeclarativelikememoryforconditionalspatialinformationindomesticchicksigallusgallusi
AT jonathannialldaisley lateralizeddeclarativelikememoryforconditionalspatialinformationindomesticchicksigallusgallusi
AT massimodeagro lateralizeddeclarativelikememoryforconditionalspatialinformationindomesticchicksigallusgallusi
AT giorgiovallortigara lateralizeddeclarativelikememoryforconditionalspatialinformationindomesticchicksigallusgallusi
AT luciaregolin lateralizeddeclarativelikememoryforconditionalspatialinformationindomesticchicksigallusgallusi