Habituation to a danger stimulus in two semiterrestrial crabs: ontogenic, ecological and opioid modulation correlates

Previous research on the habituation of the crab Chasmagnathus granulatus to an iterated visual danger stimulus disclosed two remarkable features of this mnemonic process: a) the ready acquisition and long-lasting nature of the habituated response, and b) the likely endogenous opioid modulation of t...

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Autores principales: Tomsic, Daniel, Massoni, Viviana
Publicado: 1993
Materias:
Aging
Contextual cues
Crustacea
Habituation
Opioids
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v173_n5_p621_Tomsic
http://hdl.handle.net/20.500.12110/paper_03407594_v173_n5_p621_Tomsic
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_03407594_v173_n5_p621_Tomsic
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spelling paper:paper_03407594_v173_n5_p621_Tomsic2023-06-08T15:34:11Z Habituation to a danger stimulus in two semiterrestrial crabs: ontogenic, ecological and opioid modulation correlates Tomsic, Daniel Massoni, Viviana Aging Contextual cues Crustacea Habituation Opioids Previous research on the habituation of the crab Chasmagnathus granulatus to an iterated visual danger stimulus disclosed two remarkable features of this mnemonic process: a) the ready acquisition and long-lasting nature of the habituated response, and b) the likely endogenous opioid modulation of the shortterm habituation, whose potential adaptive value was studied here. Both the habituation ability and the opioid modulation of such ability were analysed in Chasmagnathus granulatus and Pachygrapsus marmoratus, two closely related grapsid species that diverge widely in ecology. Results indicate that Chasmagnathus has a much greater capacity to habituate than Pachygrapsus, showing a more pronounced short-term habituation which seems to some extent mediated by an endogenous opioid mechanism, and a faster acquisition of a greater longterm habituation partially mediated by memorial representation of the contextual cues. A correlation between these differences and those related with the ecological pressure was discussed. The capacity of acquiring longterm habituation in crabs of the same species but different age was also assessed, showing that old animals clearly exhibit lower retention of the habituated response than young crabs. The possible correlation between this age-dependent change and an ontogenetic shift of habitat was discussed. © 1993 Springer-Verlag. Fil:Tomsic, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Massoni, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1993 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v173_n5_p621_Tomsic http://hdl.handle.net/20.500.12110/paper_03407594_v173_n5_p621_Tomsic
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Aging
Contextual cues
Crustacea
Habituation
Opioids
spellingShingle Aging
Contextual cues
Crustacea
Habituation
Opioids
Tomsic, Daniel
Massoni, Viviana
Habituation to a danger stimulus in two semiterrestrial crabs: ontogenic, ecological and opioid modulation correlates
topic_facet Aging
Contextual cues
Crustacea
Habituation
Opioids
description Previous research on the habituation of the crab Chasmagnathus granulatus to an iterated visual danger stimulus disclosed two remarkable features of this mnemonic process: a) the ready acquisition and long-lasting nature of the habituated response, and b) the likely endogenous opioid modulation of the shortterm habituation, whose potential adaptive value was studied here. Both the habituation ability and the opioid modulation of such ability were analysed in Chasmagnathus granulatus and Pachygrapsus marmoratus, two closely related grapsid species that diverge widely in ecology. Results indicate that Chasmagnathus has a much greater capacity to habituate than Pachygrapsus, showing a more pronounced short-term habituation which seems to some extent mediated by an endogenous opioid mechanism, and a faster acquisition of a greater longterm habituation partially mediated by memorial representation of the contextual cues. A correlation between these differences and those related with the ecological pressure was discussed. The capacity of acquiring longterm habituation in crabs of the same species but different age was also assessed, showing that old animals clearly exhibit lower retention of the habituated response than young crabs. The possible correlation between this age-dependent change and an ontogenetic shift of habitat was discussed. © 1993 Springer-Verlag.
author Tomsic, Daniel
Massoni, Viviana
author_facet Tomsic, Daniel
Massoni, Viviana
author_sort Tomsic, Daniel
title Habituation to a danger stimulus in two semiterrestrial crabs: ontogenic, ecological and opioid modulation correlates
title_short Habituation to a danger stimulus in two semiterrestrial crabs: ontogenic, ecological and opioid modulation correlates
title_full Habituation to a danger stimulus in two semiterrestrial crabs: ontogenic, ecological and opioid modulation correlates
title_fullStr Habituation to a danger stimulus in two semiterrestrial crabs: ontogenic, ecological and opioid modulation correlates
title_full_unstemmed Habituation to a danger stimulus in two semiterrestrial crabs: ontogenic, ecological and opioid modulation correlates
title_sort habituation to a danger stimulus in two semiterrestrial crabs: ontogenic, ecological and opioid modulation correlates
publishDate 1993
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v173_n5_p621_Tomsic
http://hdl.handle.net/20.500.12110/paper_03407594_v173_n5_p621_Tomsic
work_keys_str_mv AT tomsicdaniel habituationtoadangerstimulusintwosemiterrestrialcrabsontogenicecologicalandopioidmodulationcorrelates
AT massoniviviana habituationtoadangerstimulusintwosemiterrestrialcrabsontogenicecologicalandopioidmodulationcorrelates
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