Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Input-output relationships of the dorsal nucleus of the lateral lemniscus:Possible substrate for the processing of dynamic spatial cues
Autore:
Shneiderman, A; Stanforth, DA; Henkel, CK; Saint Marie, RL;
Indirizzi:
House Ear Inst, Neuroanat Dept, Los Angeles, CA 90057 USA House Ear Inst Los Angeles CA USA 90057 t Dept, Los Angeles, CA 90057 USA Charles R Drew Univ Med & Sci, Med Ctr, Dept Emergency Med, Los Angeles, CA 90059 USA Charles R Drew Univ Med & Sci Los Angeles CA USA 90059 eles, CA 90059 USA Wake Forest Univ, Bowman Gray Sch Med, Dept Neurobiol & Anat, Winston Salem, NC 27157 USA Wake Forest Univ Winston Salem NC USA 27157 , Winston Salem, NC 27157 USA Univ So Calif, Dept Otolaryngol Head & Neck Surg, Sch Med, Los Angeles, CA90033 USA Univ So Calif Los Angeles CA USA 90033 Sch Med, Los Angeles, CA90033 USA
Titolo Testata:
JOURNAL OF COMPARATIVE NEUROLOGY
fascicolo: 2, volume: 410, anno: 1999,
pagine: 265 - 276
SICI:
0021-9967(19990726)410:2<265:IROTDN>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPERIOR OLIVARY COMPLEX; INFERIOR COLLICULUS NEURONS; MOTION-DIRECTION SENSITIVITY; SINGLE AUDITORY UNITS; MOUSTACHE BAT; TONOTOPIC ORGANIZATION; BRAIN-STEM; GABA-IMMUNOREACTIVITY; GABAERGIC PROJECTION; RESPONSE PROPERTIES;
Keywords:
lateral superior olive; inferior colliculus; cat; binaural hearing; sound localization; motion detection;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
68
Recensione:
Indirizzi per estratti:
Indirizzo: Saint Marie, RL House Ear Inst, Neuroanat Dept, 2100 W 3rd St, Los Angeles, CA 90057 USA House Ear Inst 2100 W 3rd St Los Angeles CA USA 90057 USA
Citazione:
A. Shneiderman et al., "Input-output relationships of the dorsal nucleus of the lateral lemniscus:Possible substrate for the processing of dynamic spatial cues", J COMP NEUR, 410(2), 1999, pp. 265-276

Abstract

One organizing principle of the auditory system is the progressive representation of best tuning frequency. Superimposed on this tonotopy are nucleotopic organizations, some of which are related to the processing of different spatial cues. In the present study, we correlated asymmetries in the outputs of the dorsal nucleus of the lateral lemniscus (DNLL) to the two inferior colliculi (ICs), with asymmetries in the inputs to DNLL from the two lateral superior olives (LSOs). The positions of DNLL neurons with crossed anduncrossed projections were plotted from cases with unilateral injections of retrograde tracers in the IC. We found an orderly dorsal-to-ventral progression to the output that recapitulated the tonotopy of DNLL. In addition, we found a nucleotopic organization in the ventral thigh-frequency part of DNLL. Neurons with projections to the ventromedial thigh-frequency part of the contralateral IC were preferentially located ventrolaterally in DNLL; those with projections to the ventromedial part of the ipsilateral IC were preferentially located ventromedially in DNLL. This partial segregation of outputs corresponded with a partial segregation of inputs from the two LSOs in cases which received closely matched bilateral injections of anterogradetracers in LSO. The ventral part of DNLL received a heavy projection medially from the opposite LSO and a heavy projection laterally from the ipsilateral LSO. The findings suggest a direct relationship in the ventral part ofthe DNLL between inputs from the two LSOs and outputs to the two ICs. Possible roles for this segregation of pathways in DNLL are discussed in relation to the processing of static and dynamic spatial cues. (C) 1999 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 23:27:12