Corticofugal modulation of audition
نویسندگان
چکیده
منابع مشابه
Multiparametric corticofugal modulation of collicular duration-tuned neurons: Modulation in the amplitude domain Running title: Corticofugal modulation of collicular neurons
The subcortical auditory nuclei contain not only neurons tuned to a specific frequency, but also those tuned to multiple parameters characterizing a sound. All these neurons are potentially subject to modulation by descending fibers from the auditory cortex (corticofugal modulation). In the past, we electrically stimulated cortical durationtuned neurons of the big brown bat, Eptesicus fuscus, a...
متن کاملCorticofugal modulation of peripheral auditory responses
The auditory efferent system originates in the auditory cortex and projects to the medial geniculate body (MGB), inferior colliculus (IC), cochlear nucleus (CN) and superior olivary complex (SOC) reaching the cochlea through olivocochlear (OC) fibers. This unique neuronal network is organized in several afferent-efferent feedback loops including: the (i) colliculo-thalamic-cortico-collicular; (...
متن کاملCorticofugal modulation of the medial geniculate body.
The function of corticothalamic projections in the auditory system was investigated by reversible inactivation of primary auditory cortex. Changes in the discharges of multiple-unit " clusters " within the ventral division of the medial geniculate body were assessed following removal of normal descending influences by cortical cooling. Patterns of neuronal discharges to clicks or tones were cla...
متن کاملCorticofugal modulation of the paradoxical latency shifts of inferior collicular neurons Running title: Corticofugal modulation of latencies of collicular neurons
The central auditory system creates various types of neurons tuned to different acoustic parameters other than a specific frequency. The response latency of auditory neurons typically shortens with an increase in stimulus intensity. However, ~ 10% of collicular neurons of the little brown bat show a “paradoxical latency-shift (PLS)”: long latencies to intense sounds but short latencies to weak ...
متن کاملCorticofugal modulation of initial sound processing in the brain.
The brain selectively extracts the most relevant information in top-down processing manner. Does the corticofugal system, a "back projection system," constitute the neural basis of such top-down selection? Here, we show how focal activation of the auditory cortex with 500 nA electrical pulses influences the auditory information processing in the cochlear nucleus (CN) that receives almost unproc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Current Opinion in Physiology
سال: 2020
ISSN: 2468-8673
DOI: 10.1016/j.cophys.2020.08.016