Publications by authors named "A Kuruvilla-Mathew"
Auditory processing disorder (APD) is a listening impairment that some school-aged children may experience despite having normal peripheral hearing. Recent resting-state functional magnetic resonance imaging (MRI) has revealed an alteration in regional functional brain topology in children with APD. However, little is known about the structural organization in APD.
View Article and Find Full Text PDFFactors affecting successful listening in older adults and the corresponding electrophysiological signatures are not well understood. The present study investigated age-related differences in attention and temporal processing, as well as differences in the neural activity related to signal degradation during a number comparison task. Participants listened to digits presented in background babble and were tested at two levels of signal clarity, clear and degraded.
View Article and Find Full Text PDFArticle Synopsis
- Children with auditory processing disorder (APD) struggle with hearing in noisy environments even though their hearing tests are normal; there’s ongoing debate about whether these issues stem from sensory processing or cognitive factors.
- A study using MRI on 57 children (28 with APD and 29 healthy controls) found that while overall brain network properties were similar, children with APD had distinct brain hub architecture in certain functional modules.
- Specifically, reduced connectivity was noted in auditory-related brain regions, indicating altered brain network organization in APD children, which is linked to their ability to process spatialized auditory information.
Understanding the neural underpinning of conscious perception remains one of the primary challenges of cognitive neuroscience. Theories based mostly on studies of the visual system differ according to whether the neural activity giving rise to conscious perception occurs in modality-specific sensory cortex or in associative areas, such as the frontal and parietal cortices. Here, we search for modality-specific conscious processing in the auditory cortex using a bistable stream segregation paradigm that presents a constant stimulus without the confounding influence of physical changes to sound properties.
View Article and Find Full Text PDFObjective: To determine whether children aged 7 to 12 years with listening difficulties show objective evidence for efferent auditory function based on measurements of medial olivo-cochlear and middle ear muscle reflexes.
Design: Click-evoked otoacoustic emissions recorded with and without contralateral broadband noise and ipsilateral and contralateral tonal (1000, 2000 Hz) middle ear muscle reflex thresholds were examined.
Study Sample: 29 children diagnosed with suspected auditory processing disorder (APD) and a control group of 34 typically developing children participated in this study.