Aggressiveness and memory: Subordinate crabs present higher memory ability than dominants after an agonistic experience
A relationship between aggressiveness and memory has been proposed in several studies with different animal species. Here, we study this possibility in the crab Chasmagnathus granulatus, using the context-signal memory model (CSM) that involves an association between the learning context and a visua...
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2007
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10747427_v87_n1_p140_Kaczer http://hdl.handle.net/20.500.12110/paper_10747427_v87_n1_p140_Kaczer |
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paper:paper_10747427_v87_n1_p140_Kaczer2023-06-08T16:05:07Z Aggressiveness and memory: Subordinate crabs present higher memory ability than dominants after an agonistic experience Aggressiveness Dominance Memory Memory modulation aggressiveness animal experiment article controlled study crab dominance behavior fighting hazard male memory memory consolidation model nonhuman state dependent learning stimulus response visual stimulation Aggression Animals Association Learning Brachyura Dominance-Subordination Environment Male Mental Recall A relationship between aggressiveness and memory has been proposed in several studies with different animal species. Here, we study this possibility in the crab Chasmagnathus granulatus, using the context-signal memory model (CSM) that involves an association between the learning context and a visual danger stimulus. Each experiment consisted of an agonistic phase and a memory one. During the former, matched pairs of male crabs were staged in two 10-min encounters and the dominant or subordinate condition of each member of the dyad was determined. During the memory phase, crabs were trained to acquire CSM and tested 24 h later. Results showed that the agonistic encounter, staged 48 h before the acquisition of CSM, can modulate memory according to the dominance condition of the fighter; in such a way that memory retention of subordinates results higher than that of dominants. By contrast, when the memory phase preceded the agonist one, forthcoming dominants and subordinates did not differ in their memory ability. The memory modulation would not be linked to a dominance status but to a persistent dominance relationship fully reconstructed in each encounter between the same opponents. Therefore, the crab's CSM would not depend directly on predetermined intrinsic properties, but on the outcome of the fight, which would be determined in turn by the relative aggressiveness of the fighters. The finding that the agonistic episode modulates memory opens the possibility of using this episodic interference to probe the function of diverse phases of CSM. © 2006 Elsevier Inc. All rights reserved. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10747427_v87_n1_p140_Kaczer http://hdl.handle.net/20.500.12110/paper_10747427_v87_n1_p140_Kaczer |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Aggressiveness Dominance Memory Memory modulation aggressiveness animal experiment article controlled study crab dominance behavior fighting hazard male memory memory consolidation model nonhuman state dependent learning stimulus response visual stimulation Aggression Animals Association Learning Brachyura Dominance-Subordination Environment Male Mental Recall |
| spellingShingle |
Aggressiveness Dominance Memory Memory modulation aggressiveness animal experiment article controlled study crab dominance behavior fighting hazard male memory memory consolidation model nonhuman state dependent learning stimulus response visual stimulation Aggression Animals Association Learning Brachyura Dominance-Subordination Environment Male Mental Recall Aggressiveness and memory: Subordinate crabs present higher memory ability than dominants after an agonistic experience |
| topic_facet |
Aggressiveness Dominance Memory Memory modulation aggressiveness animal experiment article controlled study crab dominance behavior fighting hazard male memory memory consolidation model nonhuman state dependent learning stimulus response visual stimulation Aggression Animals Association Learning Brachyura Dominance-Subordination Environment Male Mental Recall |
| description |
A relationship between aggressiveness and memory has been proposed in several studies with different animal species. Here, we study this possibility in the crab Chasmagnathus granulatus, using the context-signal memory model (CSM) that involves an association between the learning context and a visual danger stimulus. Each experiment consisted of an agonistic phase and a memory one. During the former, matched pairs of male crabs were staged in two 10-min encounters and the dominant or subordinate condition of each member of the dyad was determined. During the memory phase, crabs were trained to acquire CSM and tested 24 h later. Results showed that the agonistic encounter, staged 48 h before the acquisition of CSM, can modulate memory according to the dominance condition of the fighter; in such a way that memory retention of subordinates results higher than that of dominants. By contrast, when the memory phase preceded the agonist one, forthcoming dominants and subordinates did not differ in their memory ability. The memory modulation would not be linked to a dominance status but to a persistent dominance relationship fully reconstructed in each encounter between the same opponents. Therefore, the crab's CSM would not depend directly on predetermined intrinsic properties, but on the outcome of the fight, which would be determined in turn by the relative aggressiveness of the fighters. The finding that the agonistic episode modulates memory opens the possibility of using this episodic interference to probe the function of diverse phases of CSM. © 2006 Elsevier Inc. All rights reserved. |
| title |
Aggressiveness and memory: Subordinate crabs present higher memory ability than dominants after an agonistic experience |
| title_short |
Aggressiveness and memory: Subordinate crabs present higher memory ability than dominants after an agonistic experience |
| title_full |
Aggressiveness and memory: Subordinate crabs present higher memory ability than dominants after an agonistic experience |
| title_fullStr |
Aggressiveness and memory: Subordinate crabs present higher memory ability than dominants after an agonistic experience |
| title_full_unstemmed |
Aggressiveness and memory: Subordinate crabs present higher memory ability than dominants after an agonistic experience |
| title_sort |
aggressiveness and memory: subordinate crabs present higher memory ability than dominants after an agonistic experience |
| publishDate |
2007 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10747427_v87_n1_p140_Kaczer http://hdl.handle.net/20.500.12110/paper_10747427_v87_n1_p140_Kaczer |
| _version_ |
1768541622352478208 |