CS-US delay does not impair appetitive conditioning in Chasmagnathus
Habituation and appetitive conditioning have been already described in the crab Chasmagnathus. The purpose of this work is to study whether associative learning can be obtained despite a long conditioned stimulus-unconditioned stimulus interval. Results of the first experiment show that the weakenin...
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2002
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03766357_v60_n1_p1_Dimant http://hdl.handle.net/20.500.12110/paper_03766357_v60_n1_p1_Dimant |
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paper:paper_03766357_v60_n1_p1_Dimant2023-06-08T15:38:47Z CS-US delay does not impair appetitive conditioning in Chasmagnathus Appetitive conditioning Chasmagnathus granulatus Crab CS-US interval Habituation Trace conditioning learning adaptation animal experiment appetite article brain region controlled study crab environment habituation instrumental conditioning male nonhuman reinforcement state dependent learning stimulus stimulus response time weight Chasmagnathus Chasmagnathus granulata Decapoda (Crustacea) Habituation and appetitive conditioning have been already described in the crab Chasmagnathus. The purpose of this work is to study whether associative learning can be obtained despite a long conditioned stimulus-unconditioned stimulus interval. Results of the first experiment show that the weakening of temporal contiguity does not prevent appetitive conditioning to occur while after a long 4-h delay, conditioning wanes completely. A second experiment was conducted, after one and three days of training respectively, confirming the above results. Though initially neutral the context trace may be still available immediately after training and for the period of two but not after 4:00 h, demonstrating a forward limit for the conditioning window. After 3 days of training, a further decrease in the exploratory activity suggested that a longer training could increase the relative weight of habituation. Conditioning and habituation seem to work as opponent processes in the crab Chasmagnathus granulatus: if habituation training in the box is followed by the administration of reinforcement after a short period of time, appetitive conditioning will take place. However, as this interval is increased, habituation prevails. A persistent effect of the exposure to a given environment that may underlie trace conditioning in this crab is discussed in adaptive terms. © 2002 Elsevier Science B.V. All rights reserved. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03766357_v60_n1_p1_Dimant http://hdl.handle.net/20.500.12110/paper_03766357_v60_n1_p1_Dimant |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Appetitive conditioning Chasmagnathus granulatus Crab CS-US interval Habituation Trace conditioning learning adaptation animal experiment appetite article brain region controlled study crab environment habituation instrumental conditioning male nonhuman reinforcement state dependent learning stimulus stimulus response time weight Chasmagnathus Chasmagnathus granulata Decapoda (Crustacea) |
| spellingShingle |
Appetitive conditioning Chasmagnathus granulatus Crab CS-US interval Habituation Trace conditioning learning adaptation animal experiment appetite article brain region controlled study crab environment habituation instrumental conditioning male nonhuman reinforcement state dependent learning stimulus stimulus response time weight Chasmagnathus Chasmagnathus granulata Decapoda (Crustacea) CS-US delay does not impair appetitive conditioning in Chasmagnathus |
| topic_facet |
Appetitive conditioning Chasmagnathus granulatus Crab CS-US interval Habituation Trace conditioning learning adaptation animal experiment appetite article brain region controlled study crab environment habituation instrumental conditioning male nonhuman reinforcement state dependent learning stimulus stimulus response time weight Chasmagnathus Chasmagnathus granulata Decapoda (Crustacea) |
| description |
Habituation and appetitive conditioning have been already described in the crab Chasmagnathus. The purpose of this work is to study whether associative learning can be obtained despite a long conditioned stimulus-unconditioned stimulus interval. Results of the first experiment show that the weakening of temporal contiguity does not prevent appetitive conditioning to occur while after a long 4-h delay, conditioning wanes completely. A second experiment was conducted, after one and three days of training respectively, confirming the above results. Though initially neutral the context trace may be still available immediately after training and for the period of two but not after 4:00 h, demonstrating a forward limit for the conditioning window. After 3 days of training, a further decrease in the exploratory activity suggested that a longer training could increase the relative weight of habituation. Conditioning and habituation seem to work as opponent processes in the crab Chasmagnathus granulatus: if habituation training in the box is followed by the administration of reinforcement after a short period of time, appetitive conditioning will take place. However, as this interval is increased, habituation prevails. A persistent effect of the exposure to a given environment that may underlie trace conditioning in this crab is discussed in adaptive terms. © 2002 Elsevier Science B.V. All rights reserved. |
| title |
CS-US delay does not impair appetitive conditioning in Chasmagnathus |
| title_short |
CS-US delay does not impair appetitive conditioning in Chasmagnathus |
| title_full |
CS-US delay does not impair appetitive conditioning in Chasmagnathus |
| title_fullStr |
CS-US delay does not impair appetitive conditioning in Chasmagnathus |
| title_full_unstemmed |
CS-US delay does not impair appetitive conditioning in Chasmagnathus |
| title_sort |
cs-us delay does not impair appetitive conditioning in chasmagnathus |
| publishDate |
2002 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03766357_v60_n1_p1_Dimant http://hdl.handle.net/20.500.12110/paper_03766357_v60_n1_p1_Dimant |
| _version_ |
1768542221861126144 |