INVESTIGADORES
TOMSIC Daniel
artículos
Título:
Context-US association as a determinant of long-term habituation in the crab Chasmagnathus.
Autor/es:
TOMSIC D., PEDREIRA M. E., ROMANO A. HERMITE G. AND MALDONADO H.
Revista:
ANIMAL LEARNING & BEHAVIOR
Editorial:
Psychonomic Society
Referencias:
Año: 1998 vol. 26 p. 34 - 45
ISSN:
0090-4996
Resumen:
An opaque screen moving overhead elicits an escape response in the crab Chasmagnathus that habituates
for a long period after just a few presentations. A series of experiments was performed to
determine whether the crabs long-term habituation (LTH) is mediated by an association between
contextual cues and the eliciting stimulus. Chasmagnathus failed to exhibit LTH when a visual cue
in the experimental environment was changed between training and testing. In addition, long-term
exposure to the context in the absence of the eliciting stimulus impaired LTH, both when the exposure
preceded the habituation training (latent inhibition) and when the exposure came after the training
(extinction). Long exposure to the context alone prior to training also produced a decrease in responsiveness
to the eliciting stimulus, which confirmed previous results. However, both effects of
long exposure were only manifested when the crabs spent a period of time between exposure and
testing out of the experimental context. The results of this paper are interpreted as supporting the view
that Chasmagnathus LTH can be understood largely by Wagners associative theory of habituation.
in the experimental environment was changed between training and testing. In addition, long-term
exposure to the context in the absence of the eliciting stimulus impaired LTH, both when the exposure
preceded the habituation training (latent inhibition) and when the exposure came after the training
(extinction). Long exposure to the context alone prior to training also produced a decrease in responsiveness
to the eliciting stimulus, which confirmed previous results. However, both effects of
long exposure were only manifested when the crabs spent a period of time between exposure and
testing out of the experimental context. The results of this paper are interpreted as supporting the view
that Chasmagnathus LTH can be understood largely by Wagners associative theory of habituation.
for a long period after just a few presentations. A series of experiments was performed to
determine whether the crabs long-term habituation (LTH) is mediated by an association between
contextual cues and the eliciting stimulus. Chasmagnathus failed to exhibit LTH when a visual cue
in the experimental environment was changed between training and testing. In addition, long-term
exposure to the context in the absence of the eliciting stimulus impaired LTH, both when the exposure
preceded the habituation training (latent inhibition) and when the exposure came after the training
(extinction). Long exposure to the context alone prior to training also produced a decrease in responsiveness
to the eliciting stimulus, which confirmed previous results. However, both effects of
long exposure were only manifested when the crabs spent a period of time between exposure and
testing out of the experimental context. The results of this paper are interpreted as supporting the view
that Chasmagnathus LTH can be understood largely by Wagners associative theory of habituation.
in the experimental environment was changed between training and testing. In addition, long-term
exposure to the context in the absence of the eliciting stimulus impaired LTH, both when the exposure
preceded the habituation training (latent inhibition) and when the exposure came after the training
(extinction). Long exposure to the context alone prior to training also produced a decrease in responsiveness
to the eliciting stimulus, which confirmed previous results. However, both effects of
long exposure were only manifested when the crabs spent a period of time between exposure and
testing out of the experimental context. The results of this paper are interpreted as supporting the view
that Chasmagnathus LTH can be understood largely by Wagners associative theory of habituation.
Chasmagnathus that habituates
for a long period after just a few presentations. A series of experiments was performed to
determine whether the crabs long-term habituation (LTH) is mediated by an association between
contextual cues and the eliciting stimulus. Chasmagnathus failed to exhibit LTH when a visual cue
in the experimental environment was changed between training and testing. In addition, long-term
exposure to the context in the absence of the eliciting stimulus impaired LTH, both when the exposure
preceded the habituation training (latent inhibition) and when the exposure came after the training
(extinction). Long exposure to the context alone prior to training also produced a decrease in responsiveness
to the eliciting stimulus, which confirmed previous results. However, both effects of
long exposure were only manifested when the crabs spent a period of time between exposure and
testing out of the experimental context. The results of this paper are interpreted as supporting the view
that Chasmagnathus LTH can be understood largely by Wagners associative theory of habituation.
in the experimental environment was changed between training and testing. In addition, long-term
exposure to the context in the absence of the eliciting stimulus impaired LTH, both when the exposure
preceded the habituation training (latent inhibition) and when the exposure came after the training
(extinction). Long exposure to the context alone prior to training also produced a decrease in responsiveness
to the eliciting stimulus, which confirmed previous results. However, both effects of
long exposure were only manifested when the crabs spent a period of time between exposure and
testing out of the experimental context. The results of this paper are interpreted as supporting the view
that Chasmagnathus LTH can be understood largely by Wagners associative theory of habituation.
Chasmagnathus failed to exhibit LTH when a visual cue
in the experimental environment was changed between training and testing. In addition, long-term
exposure to the context in the absence of the eliciting stimulus impaired LTH, both when the exposure
preceded the habituation training (latent inhibition) and when the exposure came after the training
(extinction). Long exposure to the context alone prior to training also produced a decrease in responsiveness
to the eliciting stimulus, which confirmed previous results. However, both effects of
long exposure were only manifested when the crabs spent a period of time between exposure and
testing out of the experimental context. The results of this paper are interpreted as supporting the view
that Chasmagnathus LTH can be understood largely by Wagners associative theory of habituation.Chasmagnathus LTH can be understood largely by Wagners associative theory of habituation.