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Titolo:
MONAURAL AND BINAURAL RESPONSE PROPERTIES OF SINGLE NEURONS IN THE RATS DORSAL NUCLEUS OF THE LATERAL LEMNISCUS
Autore:
KELLY JB; BUCKTHOUGHT AD; KIDD SA;
Indirizzi:
CARLETON UNIV,INST NEUROSCI,LAB SENSORY NEUROSCI,329 LIFE SCI BLDG,1125 COLONEY BY DR OTTAWA ON K1S 5B6 CANADA CARLETON UNIV,DEPT PSYCHOL OTTAWA ON K1S 5B6 CANADA
Titolo Testata:
Hearing research
fascicolo: 1-2, volume: 122, anno: 1998,
pagine: 25 - 40
SICI:
0378-5955(1998)122:1-2<25:MABRPO>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
AUDITORY BRAIN-STEM; SUPERIOR OLIVARY COMPLEX; RUFOUS HORSESHOE BAT; KAINIC ACID LESIONS; INFERIOR COLLICULUS; MOUSTACHE BAT; PHYSIOLOGICAL-PROPERTIES; ASCENDING PROJECTIONS; GABA-IMMUNOREACTIVITY; GABAERGIC PROJECTION;
Keywords:
AUDITORY BRAIN-STEM; BINAURAL HEARING; ACOUSTIC SIGNAL PROCESSING; LATERAL LEMNISCUS; TONOTOPIC ORGANIZATION; SOUND FREQUENCY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
68
Recensione:
Indirizzi per estratti:
Citazione:
J.B. Kelly et al., "MONAURAL AND BINAURAL RESPONSE PROPERTIES OF SINGLE NEURONS IN THE RATS DORSAL NUCLEUS OF THE LATERAL LEMNISCUS", Hearing research, 122(1-2), 1998, pp. 25-40

Abstract

Extracellular recordings were made with microelectrodes from single neurons in the rat's dorsal nucleus of the lateral lemniscus (DNLL) andresponse characteristics were determined for monaural and binaural acoustic stimulation. The vast majority of DNLL neurons were narrowly tuned to sound frequency and their temporal responses to contralateral tone pulses fell into one of three broad categories: onset (57%), sustained (21%) or onset-pause-sustained (22%). Most DNLL neurons fired multiple action potentials to a single click delivered to the contralateral ear. The majority (77%) of DNLL neurons showed a monotonic increasein the number of spikes elicited by contralateral tone pulses of increasing sound pressure level; the remaining cells were weakly non-monotonic. No obvious tonotopic pattern was found in the distribution of characteristic frequency of neurons in DNLL. Most DNLL neurons exhibitedeither excitatory/inhibitory (74%) or excitatory/excitatory (9%) binaural response patterns. The remaining cells (17%) were monaural and driven exclusively by stimulation of the contralateral ear. The binauralneurons in DNLL were sensitive to both interaural intensity and interaural time differences as determined by presentation of dichotic tone bursts and clicks respectively. The responses of DNLL neurons could bedistinguished on the basis of monaural and binaural response characteristics from those in surrounding areas including the sagulum, paralemniscal zone and the intermediate nucleus of the lateral lemniscus. (C)1998 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 29/09/20 alle ore 09:34:41