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Titolo:
Conditioned brain-stimulation reward attenuates the acoustic startle reflex in rats
Autore:
Steidl, S; Li, L; Yeomans, JS;
Indirizzi:
Univ Toronto, Dept Psychol, Toronto, ON M5S 3G3, Canada Univ Toronto Toronto ON Canada M5S 3G3 ychol, Toronto, ON M5S 3G3, Canada Beijing Univ, Dept Psychol, Beijing, Peoples R China Beijing Univ Beijing Peoples R China Psychol, Beijing, Peoples R China
Titolo Testata:
BEHAVIORAL NEUROSCIENCE
fascicolo: 3, volume: 115, anno: 2001,
pagine: 710 - 717
SICI:
0735-7044(200106)115:3<710:CBRATA>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
PEDUNCULOPONTINE TEGMENTAL NUCLEUS; HYPOTHALAMIC SELF-STIMULATION; ELECTRICAL-STIMULATION; CHOLINERGIC NEURONS; PREPULSE INHIBITION; VENTRAL PALLIDUM; ACCUMBENS; DOPAMINE; LESIONS; SYSTEM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Yeomans, JS Univ Toronto, Dept Psychol, 100 St George St, Toronto, ON M5S 3G3, Canada Univ Toronto 100 St George St Toronto ON Canada M5S 3G3 Canada
Citazione:
S. Steidl et al., "Conditioned brain-stimulation reward attenuates the acoustic startle reflex in rats", BEHAV NEURO, 115(3), 2001, pp. 710-717

Abstract

The acoustic startle reflex (ASR) in rats is attenuated by a light paired with food or, in humans, by "pleasant" pictures. Rats were trained to barpress for lateral hypothalamus (LH) stimulation. ASR amplitudes were then measured at 4 intensities, with or without a light. Control rats that did not receive brain-stimulation reward (BSR) showed initially lower ASR amplitudes than did rats exposed to BSR, but both groups responded similarly with orwithout light. Next, experimental rats were given BSR in the presence of light but not in its absence. After conditioning, ASR amplitudes were reduced, and ASR thresholds were raised by a mean of 2.6 dB in the light but remained at preconditioning levels without light. No such change was found for control rats or rats with placements outside the LH.

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Documento generato il 09/07/20 alle ore 20:00:16