Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Organization of projections from the medial agranular cortex to the superior colliculus in the rat: a study using anterograde and retrograde tracing methods
Autore:
Tsumori, T; Yokota, S; Ono, K; Yasui, Y;
Indirizzi:
Shimane Med Univ, Dept Anat, Div 2, Izumo, Shimane 6938501, Japan Shimane Med Univ Izumo Shimane Japan 6938501 zumo, Shimane 6938501, Japan
Titolo Testata:
BRAIN RESEARCH
fascicolo: 1-2, volume: 903, anno: 2001,
pagine: 168 - 176
SICI:
0006-8993(20010608)903:1-2<168:OOPFTM>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
FRONTAL EYE FIELD; PREFRONTAL CORTICOTECTAL PROJECTION; PARVICELLULAR RETICULAR-FORMATION; CERVICAL SPINAL-CORD; BRAIN-STEM AFFERENTS; MOTOR CORTEX; TOPOGRAPHICAL ORGANIZATION; SUBCORTICAL CONNECTIONS; HORSERADISH-PEROXIDASE; EFFERENT CONNECTIONS;
Keywords:
medial agranular cortex; superior colliculus; paramedian pontine reticular formation; interstitial nucleus of Cajal; frontal eye field; rat;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
48
Recensione:
Indirizzi per estratti:
Indirizzo: Yasui, Y Shimane Med Univ, Dept Anat, Div 2, Izumo, Shimane 6938501, JapanShimane Med Univ Izumo Shimane Japan 6938501 mane 6938501, Japan
Citazione:
T. Tsumori et al., "Organization of projections from the medial agranular cortex to the superior colliculus in the rat: a study using anterograde and retrograde tracing methods", BRAIN RES, 903(1-2), 2001, pp. 168-176

Abstract

The organization of corticotectal projections from the medial agranular cortex (AGm). which has been considered to contain rat's frontal eye field, was examined using anterograde and retrograde tracing techniques. When biotinylated dextranamine (BDA) injections were made into the rostral part of the AGm, small numbers of BDA-labeled axons were found in the rostral two-thirds of the superior colliculus (SC) while some labeled axons were seen in the caudal one-third of the SC. These labeled axons were distributed mainly in the lateral part of the stratum griseum intermediate. On the other hand,after BDA injections into the caudal port of the AGm, moderate to dense plexuses of labeled axons were found in the rostral two-thirds of the SC while some labeled axons were seen in the caudal one-third of the SC. These labeled axons were distributed in the ventromedial and dorsolateral marginal zones of the stratum griseum intermediate as well as in the stratum griseum profundum. The corticotectal projections were largely uncrossed. After combined injections of BDA into the caudal part of the AGm on one side and cholera toxin B subunit (CTb) into the paramedian pontine reticular formation on the opposite side or into the interstitial nucleus of Cajal on the same side, the overlapping distributions of BDA-labeled axons and CTb-labeled neurons were found in the ventromedial marginal zone of the stratum griseum intermediale ipsilateral to the site of BDA injection. These results suggest that the caudal part of the AGm plays a more significant role in the oculomotor function than does the rostral part of the AGm. (C) 2001 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 30/05/20 alle ore 15:07:03