Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
EFFECTS OF POSTNATAL BLOCKADE OF CORTICAL ACTIVITY WITH TETRODOTOXIN UPON THE DEVELOPMENT AND PLASTICITY OF VIBRISSA-RELATED PATTERNS IN THE SOMATOSENSORY CORTEX OF HAMSTERS
Autore:
CHIAIA NL; FISH SE; BAUER WR; FIGLEY BA; ECK M; BENNETTCLARKE CA; RHOADES RW;
Indirizzi:
MED COLL OHIO,DEPT ANAT,CS 10008 TOLEDO OH 43699 MARSHALL UNIV,SCH MED,DEPT ANAT HUNTINGTON WV 25704
Titolo Testata:
Somatosensory & motor research
fascicolo: 3, volume: 11, anno: 1994,
pagine: 219 - 228
SICI:
0899-0220(1994)11:3<219:EOPBOC>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
RECEPTIVE-FIELD CHARACTERISTICS; BINOCULAR IMPULSE BLOCKADE; RETINAL GANGLION-CELLS; STRIATE CORTEX; ACTION-POTENTIALS; PRENATAL LIFE; VISUAL-CORTEX; CHICK-EMBRYO; RAT; INFUSION;
Keywords:
BARRELS; NEURONAL ACTIVITY; TETRODOTOXIN; TRIGEMINAL SYSTEM; DI-I; SEROTONIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
44
Recensione:
Indirizzi per estratti:
Citazione:
N.L. Chiaia et al., "EFFECTS OF POSTNATAL BLOCKADE OF CORTICAL ACTIVITY WITH TETRODOTOXIN UPON THE DEVELOPMENT AND PLASTICITY OF VIBRISSA-RELATED PATTERNS IN THE SOMATOSENSORY CORTEX OF HAMSTERS", Somatosensory & motor research, 11(3), 1994, pp. 219-228

Abstract

Several previous studies have shown that postnatal blockade of thalamocortical activity with either tetrodotoxin (TTX) or the N-methyl-D-aspartate (NMDA) receptor antagonist D,L-2-amino-5-phosphonovalerate (APV) does not prevent the formation of vibrissa-related patterns in the primary somatosensory cortex of rats. One limitation of these studies is that this pattern forms very shortly after birth in rats, and theremay be only a very limited time over which it may be influenced by activity blockade. In the present study, the effect of activity blockadewas evaluated in a more altricial rodent, the hamster. The present study showed that a pattern of thalamocortical afferents corresponding to the vibrissae is not observed until the fourth postnatal day in hamsters. Nevertheless, application of TTX-impregnated implants to the cortices of newborn hamsters had no qualitative or quantitative effect upon vibrissa-related patterns in the primary somatosensory cortices of these animals. Moreover, TTX implants did not prevent the changes in patterns that followed cauterization of a row of vibrissa follicles.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 21:27:14