Auditory steady-state responses (ASSRs) recorded with simultaneous presentation of multiple tones modulated from 77-105 Hz exhibit frequency specificity and can be acquired with monotic or dichotic stimulation. This study examined the frequency specificity and dichotic characteristics of 40 Hz ASSRs recorded with amplitude-modulated (AM) probe tones and unmodulated (UM) or AM interfering tones ...

The electroencephalogram (EEG) reflects the electrical activity of the brain as recorded by placing several electrodes on the scalp. The EEG is widely used for diagnostic evaluation of various brain disorders such as determining the type and location of the activity observed during an epileptic seizure or for studying sleep disorders [1]. The dichotic listening (DL) paradigm is often used to as...

Background: The paced auditory serial addition test (PASAT) was primarily developed to assess the effects of traumatic brain injury on cognitive functioning. Working memory (WM) is one of the most important aspects of cognitive function, and WM impairment is one of the clinically remarkable signs of aphasia. To develop the Persian version of PASAT, an initial version was used in individuals wit...

Significance Sensory processing depends upon the integration of widely distributed neural assemblies. During every day listening, our ears receive different information (due to interaural time and amplitude differences) it is known that both hemispheres extract acoustic features. Nonetheless, features belonging same source become integrated. It has been suggested brain overcomes this “binding p...

Auditory laterality and hemispheric asymmetry The differing perceptual and cognitive functions of the two cerebral hemispheres is one of the great discoveries and mysteries of the human brain (see Hugdahl & Westerhausen, 2009 for a recent review of the field). Ever since the groundbreaking work by the Nobel Laureate Roger Sperry (see Sperry 1974), mapping the different functions of the cerebral...

OBJECTIVE To assess auditory processing, hearing difficulties, and brain magnetic resonance (MR) imaging abnormalities in children with panocular developmental aniridia due to PAX6 mutations. DESIGN Case-control study. SETTING Great Ormond Street Hospital and Institute of Child Health. PARTICIPANTS Eleven case subjects with PAX6 mutations and 11 age-matched and sex-matched healthy control...

Auditory brainstem responses (ABRs) and their steady-state counterpart (subcortical steady-state responses, SSSRs) are generally thought to be insensitive to cognitive demands. However, a handful of studies report that SSSRs are modulated depending on the subject׳s focus of attention, either towards or away from an auditory stimulus. Here, we explored whether attentional focus affects the envel...

We compared self-reported handicap (Hearing Handicap Inventory for the Elderly, HHIE) scores before and after a 6-week period of hearing aid use in subjects drawn from a pool of 115 elderly persons with hearing impairment. Study patients (PTs) were divided into two categories according to whether scores on a dichotic listening test (Dichotic Sentence Identification Test, DSI) were normal or abn...