Habituation to sound stimulation in detelencephalated pigeons (Columbia livia)
Rev. bras. pesqui. méd. biol
; Braz. j. med. biol. res;24(2): 187-90, 1991. ilus
Article
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| LILACS
| ID: lil-99455
Biblioteca responsable:
BR26.1
ABSTRACT
Habituation to sound stimulation was analyzed in terms of the functional role of the telencephalon in learning. Sixteen pigeons were exposed to 1000-Hz, 83-dB, 1-s sound (stimulus A) at 30-s intervals until there was habituation of the exploratory and pre-exploratory responses. The learning criterion was 10 trials without the occurrence of these responses. Twenty-four hours after habituation to stimulus A the birds were tested with a 500-Hz, 85-dB, 1-s sound (stimulus B). On the day following habituation to stimulus B, the birds of the experimental group (N=8) suffered ablation of the telencephalon and the birds of the control group (N=8) had sham surgery. Retesting with the same sequence of procedures was carried out 10 days after surgery. in the POST-lesion situation there was a decrease of the number of habituation trials to stimulus A (P<0.01) and to stimulus B (P<0.05) by experimental pigeons compared to the PRE-lesion situation. The data suggest an interaction of a facilitatory effect of the lesion and long-term learning effects
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Colección:
01-internacional
Base de datos:
LILACS
Asunto principal:
Telencéfalo
/
Estimulación Acústica
/
Conducta Exploratoria
/
Habituación Psicofisiológica
Límite:
Animals
Idioma:
En
Revista:
Braz. j. med. biol. res
/
Rev. bras. pesqui. méd. biol
Asunto de la revista:
BIOLOGIA
/
MEDICINA
Año:
1991
Tipo del documento:
Article
/
Congress and conference
Pais de publicación:
Brasil