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Titolo:
FREQUENCY TUNING AND RESPONSE LATENCIES AT 3 LEVELS IN THE BRAIN-STEMOF THE ECHOLOCATING BAT, EPTESICUS-FUSCUS
Autore:
HAPLEA S; COVEY E; CASSEDAY JH;
Indirizzi:
DUKE UNIV,MED CTR,DEPT NEUROBIOL,BOX 3209 DURHAM NC 27710 DUKE UNIV,MED CTR,DEPT NEUROBIOL DURHAM NC 27710
Titolo Testata:
Journal of comparative physiology. A, Sensory, neural, and behavioral physiology
fascicolo: 6, volume: 174, anno: 1994,
pagine: 671 - 683
SICI:
0340-7594(1994)174:6<671:FTARLA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
COMBINATION-SENSITIVE NEURONS; UNIT EXCITATORY RESPONSES; MEDIAL GENICULATE-BODY; DOPPLER-SHIFTED ECHOES; BINAURAL TONE BURSTS; CF-FM BAT; LATERAL LEMNISCUS; PTERONOTUS-PARNELLII; INFERIOR COLLICULUS; AUDITORY-SYSTEM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
40
Recensione:
Indirizzi per estratti:
Citazione:
S. Haplea et al., "FREQUENCY TUNING AND RESPONSE LATENCIES AT 3 LEVELS IN THE BRAIN-STEMOF THE ECHOLOCATING BAT, EPTESICUS-FUSCUS", Journal of comparative physiology. A, Sensory, neural, and behavioral physiology, 174(6), 1994, pp. 671-683

Abstract

To determine the level at which certain response characteristics originate, we compared monaural auditory responses of neurons in Ventral cochlear nucleus, nuclei of lateral lemniscus and inferior colliculus. Characteristics examined were sharpness of frequency tuning, latency variability for individual neurons and range of latencies across neurons. Exceptionally broad tuning curves were found in the nuclei of the lateral lemniscus, while exceptionally narrow tuning curves were found in the inferior colliculus. Neither specialized tuning characteristic was found in the ventral cochlear nuclei. All neurons in the columnar division of the ventral nucleus of the lateral lemniscus maintained low variability of latency over a broad range of stimulus conditions. Some neurons in the cochlear nucleus (12%) and some in the inferior colliculus (15%) had low variability in latency but only at best frequency. Range of latencies across neurons was small in the ventral cochlear nucleus (1.3-5.7 ms), intermediate in the nuclei of the lateral lemniscus (1.7-19.8 ms) and greatest in the inferior colliculus (2.9-42.0 ms). We conclude that, in the nuclei of the lateral lemniscus and in theinferior colliculus, unique tuning and timing properties are built upfrom ascending

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 16:26:47