Sound entering our ears undergoes many transformations throughout the auditory pathway until it is perceived in the auditory cortex. The first processing stage is the auditory periphery, where pressure changes are converted to electrical potentials which are conducted by auditory nerve fibers (ANFs) to the central nervous system. ANFs converge onto several types of neurons in the cochlear nucle...

The activity of single units at various locations in the central auditory pathway of rhesus macaques was recorded during the monkeys' performance and nonperformance in an auditory reaction time task. Evoked unit responses during performance were compared with those observed during passive delivery of identical stimuli. Single units were recorded from the cochlear nucleus, superior olivary compl...

background : the aim of the present study was to assess the auditory working memory span of children with (central) auditory processing disorders (c) apd aged 8 to 10 years and to compare the results with normal ones. methods: twenty five children with (central) auditory processing disorders (8-10 years) and 75 normal children (8-10 years) from both genders participated in this comparative stud...

background and aim: spatial hearing is one of the most important functions of binaural hearing processing that is based on detection of fine interaural time and interaural intensity difference. spatial hearing is beyond auditory localization and lateralization. it helps auditory scene analysis and target stream segregation from other simultaneous sound sources. this function is important in spe...

The forebrain plays an important role in many aspects of sound localization behavior. Yet, the forebrain pathway that processes auditory spatial information is not known for any species. Using standard anatomic labeling techniques, we used a "top-down" approach to trace the flow of auditory spatial information from an output area of the forebrain sound localization pathway (the auditory archist...

It has previously been shown that acoustic overstimulation induces cell death and extensive cell loss in key structures of the central auditory pathway. A correlation between noise-induced apoptosis and cell loss was hypothesized for the cochlear nucleus and colliculus inferior. To determine the role of cell death in noise-induced cell loss in thalamic and cortical structures, the present mouse...

This study reports central auditory speech test performance of 25 consecutive patients with subjective idiopathic tinnitus of the severe disabling type. A preliminary study of 14 individuals who had subjective idiopathic tinnitus and complained of difficulty in hearing and understanding revealed a high incidence of abnormal central auditory speech test performance (71%), despite satisfactory pe...

The connections of the inferior colliculus, the mammalian midbrain auditory center, were determined in the greater horseshoe bat (Rhinolophus ferrumequinum), using the horseradish peroxidase method. In order to localize the auditory centers of this bat, brains were investigated with the aid of cell and fiber-stained material. The results show that most auditory centers are highly developed in t...

OBJECTIVE To describe the current ideas about the manifestations of neural plasticity in generating tinnitus. DATA SOURCES Recently published source articles were identified using MEDLINE, PubMed, and Cochrane Library according to the key words mentioned below. STUDY SELECTION Review articles and controlled trials were particularly selected. DATA EXTRACTION Data were selected systematical...