objectives: auditory brain stem response (abr) is a result of eight nerve and brain stem nuclei stimulation. several factors may affect the latencies, interpeak latencies and amplitudes in abr especially sex and age. in this study, age and sex influence on abr were studied. methods: this study was performed on 120 cases (60 males and 60 females) at akhavan rehabilitation center of university of...

fourteen patients with bilateral low frequency sensorineural hearing loss were found with disproportionate speech discrimination scores. these patients were submmitted to a comprehensive audiological, electrophysiological, neurological, and radiological battery of investigation. the results pointed to a lesion probably in the central auditory pathway.

abstract   introduction: conductive hearing loss attenuates and delays sound transmission in the middle ear. it can make variety of central auditory processing disorders; that persists even after resolve of peripheral auditory system problems. one of the aspects of central auditory processing is the temporal processing, which is important for understanding speech, including temporal resolution,...

Introduction: One of the most common pathologies in neonates is hyperbilirubinemia, which is a good marker for damage to the central nervous system. The sensitivity of the auditory system to bilirubin has been previously documented, with much discrepancy in its effects on Auditory Brainstem Response results. Thus the objective of this study was to evaluate the effects of hyperbilirubinemia on ...

Understanding intensity coding and auditory learning are basic concerns of research on the auditory central pathway. There is no unifying model of intensity coding but several mechanisms have been proposed to play a role. The first aim of this thesis was to determine the mechanisms of intensity coding in the central auditory pathway from the cochlear nucleus to the auditory cortex. The Fos labe...

CAEP are not only a useful tool for objective measurement of hearing thresholds complex stimuli, but they also allow gaining information on the integrity thalamo-cortical auditory pathway. As part aging process, morphological and functional changes cochlea, nerve central pathway will lead to development slowly progressive loss. To evaluate such changes, latencies morphology after different syll...

background and aim: auditory temporal resolution skill is calculated according to the minimum required time to analyze or integrate acoustic events. this skill, which is essential for speech perception, was evaluated by gap detection tests. the aim of this study was to determine the presence or absence of any differences between the right and left ear in the gap detection test. methods: after p...