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Titolo:
CLASSIFICATION OF THE TEMPORAL DISCHARGE PATTERNS OF SINGLE AUDITORY NEURONS IN THE FROG SUPERIOR OLIVARY NUCLEUS
Autore:
CONDON CJ; CHANG SH; FENG AS;
Indirizzi:
WASHINGTON UNIV,DEPT BIOL,CAMPUS BOX 1137,1 BROOKINGS DR ST LOUIS MO 63130 UNIV ILLINOIS,DEPT PHYSIOL & BIOPHYS,NEUROSCI PROGRAM URBANA IL 61801 UNIV ILLINOIS,BECKMAN INST URBANA IL 61801
Titolo Testata:
Hearing research
fascicolo: 1-2, volume: 83, anno: 1995,
pagine: 190 - 202
SICI:
0378-5955(1995)83:1-2<190:COTTDP>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
DORSAL MEDULLARY NUCLEUS; EFFERENT INNERVATION PATTERNS; AMPLITUDE-MODULATED SOUNDS; UNIT EXCITATORY RESPONSES; VENTRAL COCHLEAR NUCLEUS; NORTHERN LEOPARD FROG; BINAURAL TONE BURSTS; INFERIOR COLLICULUS; FREQUENCY-SELECTIVITY; RANA-CATESBEIANA;
Keywords:
FROG; AUDITORY; FIRING PATTERN; BRAIN-STEM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
64
Recensione:
Indirizzi per estratti:
Citazione:
C.J. Condon et al., "CLASSIFICATION OF THE TEMPORAL DISCHARGE PATTERNS OF SINGLE AUDITORY NEURONS IN THE FROG SUPERIOR OLIVARY NUCLEUS", Hearing research, 83(1-2), 1995, pp. 190-202

Abstract

Temporal discharge patterns of neurons in the superior olivary nucleus (SON) of the northern leopard frog (Rana pipiens pipiens) were studied by evaluating peri-stimulus time histograms and interspike intervalhistograms generated from responses to tone bursts at the neuron's characteristic frequency and at 10 dB above neuron's characteristic threshold. Four basic discharge patterns were observed, i.e., primary-like, phasic-burst, phasic, and pauser. Additionally, within each class, different neurons exhibited further subtle differences in temporal discharge patterns and thus subclasses were distinguishable. For most SON neurons, changes in signal lever did not affect the discharge pattern. However, there were a few notable exceptions. The firing pattern of 12% of SON neurons changed from one class to another with a change in signal level. Two-thirds of phasic-burst neurons showed increased regularity (i.e., chopping pattern) in their discharges as the signal levelwas increased. The majority of SON neurons showed monotonic rate-level functions, but one-fourth gave non-monotonic rate-level functions. The presence of a fairly large number of non-monotonic units in the frog SON suggests an additional role of this nucleus in information processing beyond the simple coding of stimulus level. The discharge patterns displayed by SON neurons resembled those seen in the frog cochlear nucleus and in the mammalian superior olivary complex.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 07:46:35