Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Enhanced frontal cortex activation in rats by convergent amygdaloid and noxious sensory signals
Autore:
Dringenberg, HC; Saber, AJ; Cahill, L;
Indirizzi:
Queens Univ, Dept Psychol, Kingston, ON K7L 3N6, Canada Queens Univ Kingston ON Canada K7L 3N6 chol, Kingston, ON K7L 3N6, Canada Univ Calif Irvine, Dept Neurobiol & Behav, Irvine, CA 92697 USA Univ CalifIrvine Irvine CA USA 92697 obiol & Behav, Irvine, CA 92697 USA Univ Calif Irvine, Ctr Neurobiol Learning & Memory, Irvine, CA 92697 USA Univ Calif Irvine Irvine CA USA 92697 ning & Memory, Irvine, CA 92697 USA
Titolo Testata:
NEUROREPORT
fascicolo: 11, volume: 12, anno: 2001,
pagine: 2395 - 2398
SICI:
0959-4965(20010808)12:11<2395:EFCAIR>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
AROUSAL; FEAR; ACETYLCHOLINE; STIMULATION; MECHANISMS; PLASTICITY; MODULATION; FOREBRAIN; LESIONS; NUCLEUS;
Keywords:
amygdala; EEG; fear; neocortex activation; olfaction; pain; rat; somatosensation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Dringenberg, HC Queens Univ, Dept Psychol, Kingston, ON K7L 3N6, Canada Queens Univ Kingston ON Canada K7L 3N6 ON K7L 3N6, Canada
Citazione:
H.C. Dringenberg et al., "Enhanced frontal cortex activation in rats by convergent amygdaloid and noxious sensory signals", NEUROREPORT, 12(11), 2001, pp. 2395-2398

Abstract

The modulation of frontal cortical EEG activation to noxious somatosensory(tail pressure) and olfactory (acetone) stimulation by the basal amygdala was examined in urethane-anesthetized rats. Mild tail pressure produced no EEG activation, while acetone (sniffed by freely breathing rats or drawn across the olfactory epithelium in tracheotomized rats) produced a moderate suppression of large-amplitude synchronized EEG patterns. Concurrent, low-intensity 100 Hz stimulation of the basal amygdala permitted EEG activation to tail pressure to occur, and strongly enhanced olfactory-induced cortical activation. These results indicate that excitation of the basal amygdala potentiates frontal cortical responsiveness to aversive sensory events. This may provide a mechanism to facilitate cortical excitability and processing by amygdaloid neuronal activity. NeuroReport 12:2395-2398 (C) 2001 Lippincott Williams & Wilkins.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 04:46:52