Operant discrimination learning in detelencephalated pigeons (Columba livia)
Braz. j. med. biol. res
;
28(10): 1089-95, Oct. 1995. graf
Artículo
en Inglés
| LILACS
| ID: lil-161000
ABSTRACT
Operant discrimination learning was analyzed in pigeons after massive telencephalic lesions. Twenty-one pigeons were divided into the three groups: non-lesioned (N=6), sham-lesioned (N=5) and telencephalon lesioned (N=10). Lesion surgeries were carried out before any experimental training. Learning procedures were run in the same sequence for all groups and under a food deprivation of 80 percent of the ad libitum weight. Successive discrimination was programmed by the alternation of red and yellow lights in the right key of a standard operant chamber: the red key was correlated with extinction. Sessions were run until steady-state key peck rates were obtained. The following results demonstrate discrimination learning required a larger number of sessions for lesioned pigeons (P<0.05). They showed increased response rates in red (26.43 +/- 2.59) and yellow (11.17 +/- 2.86) components...
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Índice:
LILACS (Américas)
Asunto principal:
Condicionamiento Operante
/
Aprendizaje Discriminativo
Tipo de estudio:
Estudio pronóstico
Límite:
Animales
Idioma:
Inglés
Revista:
Braz. j. med. biol. res
Asunto de la revista:
Biologia
/
Medicina
Año:
1995
Tipo del documento:
Artículo
/
Congreso y conferencia
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