Ethanol affects context memory and long-term habituation in the crab Chasmagnathus
A shadow moving overhead acts as a danger stimulus and elicits an escape response in the crab Chasmagnathus granulatus that habituates promptly and for a long period. The effect of acute ethanol treatment on this long-term memory was analyzed. A single injection of 0.01, 0.05, or 0.1 μg ethanol (ET)...
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todo:paper_00913057_v51_n2-3_p223_Saraco2023-10-03T14:54:55Z Ethanol affects context memory and long-term habituation in the crab Chasmagnathus Saraco, M.G. Arthropoda Crab Ethanol Habituation Learning and memory alcohol amnesia animal experiment article controlled study crab escape behavior habituation long term memory memory nonhuman priority journal Animal Brachyura Dose-Response Relationship, Drug Escape Reaction Ethanol Habituation (Psychophysiology) Learning Male Memory Motor Activity Support, Non-U.S. Gov't Animalia Arthropoda Chasmagnathus Chasmagnathus granulata Decapoda (Crustacea) A shadow moving overhead acts as a danger stimulus and elicits an escape response in the crab Chasmagnathus granulatus that habituates promptly and for a long period. The effect of acute ethanol treatment on this long-term memory was analyzed. A single injection of 0.01, 0.05, or 0.1 μg ethanol (ET)/g given 30 min before iterated presentation of a visual danger stimulus failed to affect short-term habituation. Posttraining ethanol (0.01 to 0.1 μg/g) produces a dose-dependent impairment of long-term habituation, but pretraining ethanol had no amnestic effect. However, a retention deficit confined to context memory was disclosed with both pre- and posttraining ethanol. Results from experiments with double injection (posttraining and pretesting injections) account for the retention impairment in terms of true amnesia (failure to acquire memory) but not due to state-dependence or retrieval deficit. The nonamnestic effect of pretraining ethanol upon long-term habituation is explained by a nonespecific depressing effect caused by interaction between iterative presentation of the danger stimulus and drug-induced internal state during training. © 1995. Fil:Saraco, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00913057_v51_n2-3_p223_Saraco |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Arthropoda Crab Ethanol Habituation Learning and memory alcohol amnesia animal experiment article controlled study crab escape behavior habituation long term memory memory nonhuman priority journal Animal Brachyura Dose-Response Relationship, Drug Escape Reaction Ethanol Habituation (Psychophysiology) Learning Male Memory Motor Activity Support, Non-U.S. Gov't Animalia Arthropoda Chasmagnathus Chasmagnathus granulata Decapoda (Crustacea) |
| spellingShingle |
Arthropoda Crab Ethanol Habituation Learning and memory alcohol amnesia animal experiment article controlled study crab escape behavior habituation long term memory memory nonhuman priority journal Animal Brachyura Dose-Response Relationship, Drug Escape Reaction Ethanol Habituation (Psychophysiology) Learning Male Memory Motor Activity Support, Non-U.S. Gov't Animalia Arthropoda Chasmagnathus Chasmagnathus granulata Decapoda (Crustacea) Saraco, M.G. Ethanol affects context memory and long-term habituation in the crab Chasmagnathus |
| topic_facet |
Arthropoda Crab Ethanol Habituation Learning and memory alcohol amnesia animal experiment article controlled study crab escape behavior habituation long term memory memory nonhuman priority journal Animal Brachyura Dose-Response Relationship, Drug Escape Reaction Ethanol Habituation (Psychophysiology) Learning Male Memory Motor Activity Support, Non-U.S. Gov't Animalia Arthropoda Chasmagnathus Chasmagnathus granulata Decapoda (Crustacea) |
| description |
A shadow moving overhead acts as a danger stimulus and elicits an escape response in the crab Chasmagnathus granulatus that habituates promptly and for a long period. The effect of acute ethanol treatment on this long-term memory was analyzed. A single injection of 0.01, 0.05, or 0.1 μg ethanol (ET)/g given 30 min before iterated presentation of a visual danger stimulus failed to affect short-term habituation. Posttraining ethanol (0.01 to 0.1 μg/g) produces a dose-dependent impairment of long-term habituation, but pretraining ethanol had no amnestic effect. However, a retention deficit confined to context memory was disclosed with both pre- and posttraining ethanol. Results from experiments with double injection (posttraining and pretesting injections) account for the retention impairment in terms of true amnesia (failure to acquire memory) but not due to state-dependence or retrieval deficit. The nonamnestic effect of pretraining ethanol upon long-term habituation is explained by a nonespecific depressing effect caused by interaction between iterative presentation of the danger stimulus and drug-induced internal state during training. © 1995. |
| format |
JOUR |
| author |
Saraco, M.G. |
| author_facet |
Saraco, M.G. |
| author_sort |
Saraco, M.G. |
| title |
Ethanol affects context memory and long-term habituation in the crab Chasmagnathus |
| title_short |
Ethanol affects context memory and long-term habituation in the crab Chasmagnathus |
| title_full |
Ethanol affects context memory and long-term habituation in the crab Chasmagnathus |
| title_fullStr |
Ethanol affects context memory and long-term habituation in the crab Chasmagnathus |
| title_full_unstemmed |
Ethanol affects context memory and long-term habituation in the crab Chasmagnathus |
| title_sort |
ethanol affects context memory and long-term habituation in the crab chasmagnathus |
| url |
http://hdl.handle.net/20.500.12110/paper_00913057_v51_n2-3_p223_Saraco |
| work_keys_str_mv |
AT saracomg ethanolaffectscontextmemoryandlongtermhabituationinthecrabchasmagnathus |
| _version_ |
1807321473350631424 |