Brief and short-term corticofugal modulation of acoustic signal processing in the bat midbrain

被引:25
|
作者
Jen, PHS [1 ]
Zhou, XM [1 ]
Zhang, JP [1 ]
Chen, QC [1 ]
Sun, XD [1 ]
机构
[1] Univ Missouri, Div Biol Sci, Columbia, MO 65211 USA
基金
美国国家科学基金会;
关键词
auditory cortex; bat; corticofugal modulation; facilitation; frequency tuning; inferior colliculus; inhibition;
D O I
10.1016/S0378-5955(02)00358-1
中图分类号
R36 [病理学]; R76 [耳鼻咽喉科学];
学科分类号
100104 ; 100213 ;
摘要
This article reviews our recent studies of brief and short-term corticofugal modulation of signal processing in the central nucleus of the inferior colliculus (ICc) by electrical stimulation in the primary auditory cortex (AC). When cortical electrical stimulation was synchronized with an acoustic stimulus, auditory responses of ICc neurons were either inhibited or facilitated and the modulative effect typically vanished within 5-10 s after the stimulation. When cortical electrical stimulation synchronized with an acoustic stimulus was repetitively delivered for 30 min, corticofugal modulation of collicular responses typically persisted up to 40 min after the stimulation. In the frequency domain, cortical electrical stimulation decreased the excitatory frequency tuning curves (FTCs) and asymmetrically increased the lateral inhibitory FTCs of corticofugally inhibited ICc neurons but produced the opposite effect on corticofugally facilitated ICc neurons. Cortical electrical stimulation facilitated auditory responses of neurons in the external nucleus of the inferior colliculus (ICx) while electrical stimulation in the ICx decreased auditory responses of ICc neurons. Auditory responses of simultaneously recorded ICx and ICc neurons varied in opposite ways during cortical electrical stimulation or drug application to recorded ICx neurons. In the amplitude domain, cortical electrical stimulation compressed rate-amplitude functions so as to increase the slope of rate-amplitude functions of ICc neurons. This modulative effect decreased with increasing stimulus amplitude. The possible biological relevance of these findings is discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:196 / 207
页数:12
相关论文
共 50 条
  • [21] ARTICULATION AND ACOUSTIC CONFUSABILITY IN SHORT-TERM MEMORY
    MURRAY, DJ
    CANADIAN PSYCHOLOGIST-PSYCHOLOGIE CANADIENNE, 1968, 9 (02): : 286 - &
  • [22] ARTICULATION AND ACOUSTIC CONFUSABILITY IN SHORT-TERM MEMORY
    MURRAY, DJ
    JOURNAL OF EXPERIMENTAL PSYCHOLOGY, 1968, 78 (4P1): : 679 - &
  • [23] ACOUSTIC AND ASSOCIATIVE CODING IN SHORT-TERM MEMORY
    LINDLEY, RE
    BROWN, DR
    QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY, 1971, 23 (FEB): : 14 - &
  • [24] SEMANTIC + ACOUSTIC SIMILARITY IN SHORT-TERM MEMORY
    BADDELEY, AD
    NATURE, 1964, 204 (496) : 1116 - &
  • [25] Short-term modulation of the lesioned language network
    Hartwigsen, Gesa
    Stockert, Anika
    Charpentier, Louise
    Wawrzyniak, Max
    Klingbeil, Julian
    Wrede, Katrin
    Obrig, Hellmuth
    Saur, Dorothee
    ELIFE, 2020, 9
  • [26] Circadian modulation of short-term memory in Drosophila
    Lyons, Lisa C.
    Roman, Gregg
    LEARNING & MEMORY, 2009, 16 (01) : 19 - 27
  • [27] VERY BRIEF SHORT-TERM MEMORY IN SPEECH PERCEPTION
    PISONI, DB
    JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1972, 51 (01): : 79 - &
  • [28] RORSCHACH CHANGES FOLLOWING BRIEF AND SHORT-TERM THERAPY
    EXNER, JE
    ANDRONIKOFSANGLADE, A
    JOURNAL OF PERSONALITY ASSESSMENT, 1992, 59 (01) : 59 - 71
  • [29] Short-term reliability of a brief hazard perception test
    Scialfa, Charles T.
    Pereverseff, Rosemary S.
    Borkenhagen, David
    ACCIDENT ANALYSIS AND PREVENTION, 2014, 73 : 41 - 46
  • [30] THE EFFECT OF A BRIEF INTERPOLATED TASK ON SHORT-TERM RETENTION
    PYLYSHYN, ZW
    CANADIAN JOURNAL OF PSYCHOLOGY, 1965, 19 (04): : 280 - 287