UNIT RESPONSES IN COCHLEAR NECLEUS OF RAT TO SWEEP TONES

被引:42
作者
MOLLER, AR
机构
[1] Department of Physiology, Karolinska Institutet, Stockholm
来源
ACTA PHYSIOLOGICA SCANDINAVICA | 1969年 / 76卷 / 04期
关键词
D O I
10.1111/j.1748-1716.1969.tb04497.x
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
Unit discharges in the cochlear nucleus of the rat have been studied in response to stimulation with continuous tones whose frequency was changed linearly at different rates (sweep tones). At low sweep rates the distribution of discharges as a function of tone frequency was an expression of the unit's response area. When the rate of frequency change was increased the response areas of the unit became narrower. At a certain sweep rate the probability of firing, within a narrow frequency range around the units' CF, reached a maximum value which was several times greater than that found for low sweep speed. The direction of the change in tone frequency had no significant influence on the results and the average firing rate appeared to be independent of the sweep rate. These results indicate that spectral resolution of cochlear nucleus units was enhanced at a certain rate of frequency change. Additional experiments showed that the enhancement of spectral resolution at a certain rate of frequency change remains upon introduction of masking wide band noise. © 1969 Scandinavian Physiological Society
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页码:503 / &
相关论文
共 19 条
[1]   MODELS FOR APPROXIMATING BASILAR MEMBRANE DISPLACEMENT [J].
FLANAGAN, JL .
BELL SYSTEM TECHNICAL JOURNAL, 1960, 39 (05) :1163-1191
[2]   EXCITATORY AND INHIBITORY RESPONSE AREAS OF AUDITORY NEURONS IN COCHLEAR NUCLEUS [J].
GREENWOOD, DD ;
MARUYAMA, N .
JOURNAL OF NEUROPHYSIOLOGY, 1965, 28 (05) :863-+
[3]  
Griffin D. R., 1958, LISTENING DARK
[4]  
HEBEL DH, 1968, J PHYSIOL LOND, V195, P215
[5]   RECEPTIVE FIELDS AND FUNCTIONAL ARCHICHITECTURE IN 2 NONSTRIATE VISUAL AREAS (18 AND 19) OF CAT [J].
HUBEL, DH ;
WIESEL, TN .
JOURNAL OF NEUROPHYSIOLOGY, 1965, 28 (02) :229-+
[6]   RECEPTIVE FIELDS OF SINGLE NEURONES IN THE CATS STRIATE CORTEX [J].
HUBEL, DH ;
WIESEL, TN .
JOURNAL OF PHYSIOLOGY-LONDON, 1959, 148 (03) :574-591
[7]  
KUPFMULLER K, 1949, SYSTEMTHEORIE ELEKTR
[8]   AURAL PULSE COMPRESSION BY BATS AND HUMANS [J].
MCCUE, JJG .
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1966, 40 (03) :545-&
[9]   UNIT RESPONSES IN COCHLEAR NUCLEUS OF RAT TO PURE TONES [J].
MOLLER, AR .
ACTA PHYSIOLOGICA SCANDINAVICA, 1969, 75 (04) :530-&
[10]  
MOLLER AR, IN PRESS