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Titolo:
The functional value of sound and exploratory behaviour in detelencephalated pigeons
Autore:
Ferrari, EAM; Faleiros, L; Cerutti, SM; Oliveira, AM;
Indirizzi:
Univ Estadual Campinas, Lab Sistemas Neurais & Comportamento, Dept Fisiol & Univ Estadual Campinas Campinas SP Brazil BR-13083970 BCto, Dept Fisiol &
Titolo Testata:
BEHAVIOURAL BRAIN RESEARCH
fascicolo: 1, volume: 101, anno: 1999,
pagine: 93 - 103
SICI:
0166-4328(199905)101:1<93:TFVOSA>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
FEAR-POTENTIATED STARTLE; COLUMBA-LIVIA; BASOLATERAL AMYGDALA; NEUROTOXIC LESIONS; HABITUATION; MEMORY; RATS; BRAIN;
Keywords:
exploratory behaviour; habituation; Pavlovian conditioning; sound; telencephalic lesion; pigeon;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
50
Recensione:
Indirizzi per estratti:
Indirizzo: Ferrari, EAM Univ Estadual Campinas, Lab Sistemas Neurais & Comportamento,Dept Fisiol & Univ Estadual Campinas Campinas SP Brazil BR-13083970 BCol &
Citazione:
E.A.M. Ferrari et al., "The functional value of sound and exploratory behaviour in detelencephalated pigeons", BEH BRA RES, 101(1), 1999, pp. 93-103

Abstract

Exploratory behaviour in response to a sound previously paired to a shock was analyzed before and after massive telencephalic lesions. Six pigeons were submitted to sound-shock associations, habituation tests, telencephalic lesion and habituation retesting. Eighteen birds divided into three sham-lesioned groups received sound-shock pairing (Control 1), pre-exposure to sound stimulation (Control 2) or pre-exposure to electric shocks (Control 3) before the behavioural tests. The pre-surgery tests consisted of 25 1 s pulses of sound A (1000 Hz, 83 dB) or B (500 Hz, 85 dB), every 30 s. Retests took place 10 days after surgery using the same sequence of procedures. The behaviour exhibited immediately after each sound stimulation was recorded manually and on video during the sessions. Analysis of variance showed an effect of group {F(3, 20) = 13.37, p < 0.0001) suggesting that pre-exposure totone-shock association affected the exploration in response to the sound presented in another context. The Experimental and Control I birds showed norobust decrease in responses during the pre-surgery sessions. Post-surgeryexploration data for detelencephalated birds showed a lower level of responding (p < 0.05). These data suggest a retardation in the typical reductionof responses to recurrent stimulation and support other evidences of the potentiating effect of sound-shock association on responding. They are also indicative of telencephalic modulation of exploratory behaviour and strengthen the arguments for the subtelencephalic storage of associative information concerning the functional value of acoustic stimulation. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 23:31:15