Habituation and sensitization to an electrical shock in the crab Chasmagnathus. Effect of background illumination
The escape response of the crab Chasmagnathus granulatus, elicited by an electrical leg-shock, wanes as a consequence of repeated stimulation, and the decrease persists after a 24-h rest interval. Results concerning stimulus specificity in within- and between-sessions habituation strongly indicate t...
Guardado en:
| Autor principal: | |
|---|---|
| Publicado: |
1991
|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319384_v50_n3_p477_Rakitin http://hdl.handle.net/20.500.12110/paper_00319384_v50_n3_p477_Rakitin |
| Aporte de: |
| id |
paper:paper_00319384_v50_n3_p477_Rakitin |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_00319384_v50_n3_p477_Rakitin2023-06-08T14:59:03Z Habituation and sensitization to an electrical shock in the crab Chasmagnathus. Effect of background illumination Tomsic, Daniel Background illumination Crustacea Electrical shock stimulus Habituation Sensitization animal experiment article behavior controlled study crab electric shock male nonhuman photosensitivity priority journal Animal Behavior, Animal Brachyura Darkness Electroshock Escape Reaction Habituation (Psychophysiology) Light Support, Non-U.S. Gov't The escape response of the crab Chasmagnathus granulatus, elicited by an electrical leg-shock, wanes as a consequence of repeated stimulation, and the decrease persists after a 24-h rest interval. Results concerning stimulus specificity in within- and between-sessions habituation strongly indicate that neither motor fatigue nor sensory adaptation nor damage can account for the response waning, which thus meets the major criteria of habituation. A comparison between the escape response habituation to leg-shock and that to a shadow passing overhead discloses clearcut differences. The shock curve shows an initial hump positively related to stimulus intensity, suggesting that a shock-induced sensitization along with habituation subserves the response curve. The curve asymptote is remarkably high and, unlike the initial waning portion, not greatly affected by treament changes, hinting that the response may be the combination of an escape response and a basal one (an undirected burst of activity). The waning portion is higher when shocks are given in dark than when given in light, but this effect is not considered as an extra eliciting-stimulus-induced sensitization, since the reactivity enhancement depends necessarily on the darkness-shock concomitance, regardless of prior exposure to darkness. Accordingly, the hypothesis that crab habituates not only to a shock but to a complex stimulus (shock + background illumination) is put forward and discussed. © 1991. Fil:Tomsic, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1991 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319384_v50_n3_p477_Rakitin http://hdl.handle.net/20.500.12110/paper_00319384_v50_n3_p477_Rakitin |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Background illumination Crustacea Electrical shock stimulus Habituation Sensitization animal experiment article behavior controlled study crab electric shock male nonhuman photosensitivity priority journal Animal Behavior, Animal Brachyura Darkness Electroshock Escape Reaction Habituation (Psychophysiology) Light Support, Non-U.S. Gov't |
| spellingShingle |
Background illumination Crustacea Electrical shock stimulus Habituation Sensitization animal experiment article behavior controlled study crab electric shock male nonhuman photosensitivity priority journal Animal Behavior, Animal Brachyura Darkness Electroshock Escape Reaction Habituation (Psychophysiology) Light Support, Non-U.S. Gov't Tomsic, Daniel Habituation and sensitization to an electrical shock in the crab Chasmagnathus. Effect of background illumination |
| topic_facet |
Background illumination Crustacea Electrical shock stimulus Habituation Sensitization animal experiment article behavior controlled study crab electric shock male nonhuman photosensitivity priority journal Animal Behavior, Animal Brachyura Darkness Electroshock Escape Reaction Habituation (Psychophysiology) Light Support, Non-U.S. Gov't |
| description |
The escape response of the crab Chasmagnathus granulatus, elicited by an electrical leg-shock, wanes as a consequence of repeated stimulation, and the decrease persists after a 24-h rest interval. Results concerning stimulus specificity in within- and between-sessions habituation strongly indicate that neither motor fatigue nor sensory adaptation nor damage can account for the response waning, which thus meets the major criteria of habituation. A comparison between the escape response habituation to leg-shock and that to a shadow passing overhead discloses clearcut differences. The shock curve shows an initial hump positively related to stimulus intensity, suggesting that a shock-induced sensitization along with habituation subserves the response curve. The curve asymptote is remarkably high and, unlike the initial waning portion, not greatly affected by treament changes, hinting that the response may be the combination of an escape response and a basal one (an undirected burst of activity). The waning portion is higher when shocks are given in dark than when given in light, but this effect is not considered as an extra eliciting-stimulus-induced sensitization, since the reactivity enhancement depends necessarily on the darkness-shock concomitance, regardless of prior exposure to darkness. Accordingly, the hypothesis that crab habituates not only to a shock but to a complex stimulus (shock + background illumination) is put forward and discussed. © 1991. |
| author |
Tomsic, Daniel |
| author_facet |
Tomsic, Daniel |
| author_sort |
Tomsic, Daniel |
| title |
Habituation and sensitization to an electrical shock in the crab Chasmagnathus. Effect of background illumination |
| title_short |
Habituation and sensitization to an electrical shock in the crab Chasmagnathus. Effect of background illumination |
| title_full |
Habituation and sensitization to an electrical shock in the crab Chasmagnathus. Effect of background illumination |
| title_fullStr |
Habituation and sensitization to an electrical shock in the crab Chasmagnathus. Effect of background illumination |
| title_full_unstemmed |
Habituation and sensitization to an electrical shock in the crab Chasmagnathus. Effect of background illumination |
| title_sort |
habituation and sensitization to an electrical shock in the crab chasmagnathus. effect of background illumination |
| publishDate |
1991 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319384_v50_n3_p477_Rakitin http://hdl.handle.net/20.500.12110/paper_00319384_v50_n3_p477_Rakitin |
| work_keys_str_mv |
AT tomsicdaniel habituationandsensitizationtoanelectricalshockinthecrabchasmagnathuseffectofbackgroundillumination |
| _version_ |
1768546574472839168 |