In animals, noise exposures that produce robust temporary threshold shifts (TTS) can produce immediate damage to afferent synapses and long-term degeneration of low spontaneous rate auditory nerve fibers. This synaptopathic damage has been shown to correlate with reduced auditory brainstem response (ABR) wave-I amplitudes at suprathreshold levels. The perceptual consequences of this "synaptopat...

In this paper, we describe an algorithm that automatically detects and labels peaks I-VII of the normal, suprathreshold auditory brainstem response (ABR). The algorithm proceeds in three stages, with the option of a fourth: (1) all candidate peaks and troughs in the ABR waveform are identified using zero crossings of the first derivative, (2) peaks I-VII are identified from these candidate peak...

ABR mechanism was designed for controlling the traffic flows in ATM networks. The key factor for efficient and stable controlling of traffic control loops is fast transfer of feedback control information from the network back to the traffic source. In ABR mechanism so-called Resource Management (RM) cells are used for this purpose. Limited number of these control cells is especially noticeable ...

Objective: The auditory brainstem response (ABR) is often affected in neurodevelopmental disorders. The aim of this study was to investigate gender differences in ABR between young females and young males with ADHD, compared to control subjects. Method: We studied 63 females with ADHD (mean 13.8 years), 26 female controls (mean 13.8years), 48 males with ADHD (mean 13.1 years), and 20 male contr...

Cogan's syndrome (CS) is a chronic inflammatory disorder of unknown etiology that most commonly affects young adults. Clinical hallmarks are bilateral interstitial keratitis and vestibuloauditory dysfunction. Association between CS and systemic vasculitis as well as aortitis also exists. The diagnosis of CS is based upon presence of characteristic inflammatory eye disease and vestibuloauditory ...

Since its inception by Jewett and Williston in the late 1960s, auditory brainstem response (ABR) has been an indispensable diagnostic tool, used audiologists around world. Click-evoked ABR testing proves to be a reliable as it provides objective representation of function, estimate hearing thresholds ability pinpoint potential issue neural pathway. The present study describes state-of-the-art a...

Two studies are reported in which the threshold estimates from auditory steady-state response (ASSR) tests are compared to those of click- or toneburst-evoked auditory brainstem responses (ABRs). The first, a retrospective review of 51 cases, demonstrated that both the click-evoked ABR and the ASSR threshold estimates in infants and children could be used to predict the pure-tone threshold. The...

The auditory brainstem response (ABR) is commonly used as a neonatal hearing screening tool. The degree to which myogenic and/or movement artifact can confound the ABR in neonates, and the effect this has on screening pass-fail rates, although widely recognized, have not been reported. This study addressed these aspects in a clinical setting. Fifty-two high-risk neonates were screened in variou...

In a multi-service network such as ATM, adaptive data services (such as ABR) share the bandwidth left unused by higher priority services. The network indicates to the ABR sources the fair and efficient rates at which they should transmit to minimize their cell loss. Switches must constantly measure the demand and available capacity, and divide the capacity fairly among the contending connection...

Hypothyroidism is known to be associated with mental retardation, motor dysfunction, memory deficits and hearing impairment. In the present study, the functional integrity of the thalamocortical projections to the primary auditory cortex and association cortex has been assessed by using Auditory Evoked Responses i.e Auditory Brainstem (ABR), Mid Latency Response (MLR) and Slow Vertex Response (...