Brainstem frequency-following responses (FFRs) probe the neural transcription of speech/music, auditory disorders, and plasticity in subcortical auditory function. Despite clinical and empirical interest, the response's neural basis remains poorly understood. The current study aimed to more fully characterize functional properties of the human FFR (topography, source locations, generation). Spe...

UNLABELLED Chloral Hydrate (CH) is a sedative and hypnotic drug used in pediatric procedures owing to the low depressive effect it has on the respiratory and cardiac systems. AIM To assess the efficacy of the drug in performing ABR and to systematize its use. MATERIALS AND METHODS A prospective cross-sectional study with 41 children without history of heart or lung disease. The initial dose...

BACKGROUND AND OBJECTIVES Hyperbillirubinemia in infants have been associated with neuronal damage including in the auditory system. Some researchers have suggested that the bilirubin-induced auditory neuronal damages may be temporary and reversible. This study was aimed at investigating the auditory neuropathy and reversibility of auditory abnormalities in hyperbillirubinemic infants. SUBJEC...

The technique that we use for eliciting brainstem auditory evoked responses (BAERs) is described. BAERs are a non-invasive and reliable clinical test when carefully performed. This test is indicated in the evaluation of disorders which may potentially involve the brainstem such as coma, multiple sclerosis, posterior fossa tumors and others. Unsuspected lesions with normal radiologic studies (in...

Objectives: Automated Auditory Brainstem Responses (ABR) peak detection is a novel technique to facilitate the measurement of neural synchrony along the auditory pathway through the brainstem. Analyzing the location of the peaks in these signals and the time interval between them may be utilized either for analyzing the hearing process or detecting peripheral and central lesions in the human he...

OBJECTIVE The purpose of this study is to expand our understanding of how the human auditory brainstem encodes temporal and spectral acoustic cues in voiced stop consonant-vowel syllables. METHODS Auditory evoked potentials measuring activity from the brainstem of 22 normal learning children were recorded to the voiced stop consonant syllables [ga], [da], and [ba]. Spectrotemporal information...

OBJECTIVE Temporal acuity in the auditory brainstem is correlated with left-dominant patterns of cortical asymmetry for processing rapid speech-sound stimuli. Here we investigate whether a similar relationship exists between brainstem processing of rapid speech components and cortical processing of syllable patterns in speech. METHODS We measured brainstem and cortical evoked potentials in re...