IFIBYNE   05513
INSTITUTO DE FISIOLOGIA, BIOLOGIA MOLECULAR Y NEUROCIENCIAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
: Being a winner doesn´t always pay: memory impairment after winning a fight in the crab Neohelice granulata
Autor/es:
LAURA KACZER; M JIMENA SANTOS; ME PEDREIRA; MERLO SANTIAGO
Lugar:
buenos Aires
Reunión:
Congreso; Second FALAN CONGRESS; 2016
Institución organizadora:
SAN
Resumen:
Many species live in complex social groups that are subject to stress as a result of social interactions. Several studies have demonstrated that aversive social events can modulate memory. Recently, we studied the influence of an agonistic encounter on an aversive learning paradigm based on a Contextual Pavlovian Conditioning (CCP) that occurs immediately after a paired fight in the crab Neohelice granulata. Losers revealed significantly higher memory retention than the respective winners which would be a direct result of the agonistic experience. However, it remained unclear whether the differential memory modulation implies an increase in the memory ability of losers or a detrimental effect on the winners? memory. To address this issue animals were trained with a weak training of CPC after the fight. Neither winners nor losers revealed memory retention. Thus, the observed differences in the memory modulation could not be explained by an increase in the ability of losers but rather by a deficit in memory of winners. Our ongoing research combines the agonistic encounter with an appetitive paradigm. We expect to determine whether their different memory abilities extend to other types of protocols or are only noticeable feature in the aversive memory.