the inferior colliculus
facing down using a cyanoacrylate adhesive and then placed in a vibratome that contains the continuously oxygenated normal aCSF.
It already was known that short sounds are discriminated from longer sounds by individual brain cells in the inferior colliculus
, the auditory part of the midbrain.
The objective of this study is to examine the effects of a frequency-enhanced neonatal acoustic environment on c-fos expression patterns in the auditory midbrain (inferior colliculus
Of the seven waveforms, termed as I-VII, the most clinically useful waves are Waves I, III, and V which are suggested to arise from auditory nerve, superior olivary nucleus, and inferior colliculus
The vestibulocochlear nerve as part of central projections passes through intermediate stations, the cochlear nuclei, superior olivary complex, and inferior colliculus
. It eventually reaches thalamus (medial geniculate body) and from there it is relayed to cortex.
Different patterns of echo signals at 50 kHz were encoded into low-frequency signals (a few Hz) according to auditory system transduction and codification processes, in order to bypass the auditory pathway and present the signal directly into the inferior colliculus
(IC) of Wistar rats [12-14].
I wave originated from the peripheral portion of eighth cranial nerve adjacent to cochlea, II wave from cochlear nucleus, III wave from superior olivary nucleus, IV wave from lateral lemniscus, and V wave from inferior colliculus
. Latencies of I, III, and V were recorded on ipsilateral and contralateral sides.
Lesions can involve the substantia nigra, periaqueductal gray matter within the midbrain, inferior colliculus
, inferior olivary nuclei, inferior cerebellar peduncles, medulla, solitary tract in the medulla, central tegmental tract and reticular formation in the dorsal pons.
* located at level of the inferior colliculus
ventral to the Sylvian aqueduct
It arises largely from the inferior colliculus
of the upper midbrain , functioning as part of a circuit that interacts with cognitive, top-down influences.
The topics include the physics of sound, the anatomy and physiology of the cochlea, the lateral lemniscus and inferior colliculus
, perceptual correlates of frequency coding in the auditory system, and intensity coding throughout the auditory system.
The papers describe models of the auditory periphery, the cochlear nucleus, the superior olivary complex, the auditory cortex, the inferior colliculus
neurons, sensorineural hearing loss, and auditory scene analysis.