Seminar 10th March 2010 1 p.m. Building 7, Room 3009
SYMBIOSIS Seminar - Detecing the brain's responses to sound stimulation
S. Bell, S. Wang, D. Simpson
ISVR, University of Southampton
- Categories
- Biomedical
- Submitter
- Thomas Blumensath
Evoked and event-related potentials refer to the response of the brain to stimulation, recorded as a changes in the electrical signal (Electrocencephalogram - EEG) recorded on the scalp. For auditory stimuli, these potentials provide insight into the processing of auditory inputs by the brain. Evoked potentials are extensively used in clinical work to assess hearing, especially in uncooperative patients or children, unable to respond to behavioural tests, and for the differential diagnosis of some types of hearing impairment. Evoked responses are also a very extensively used research tool.
In the current talk we will outline the methods used in assessing evoked responses, and some current research challenges. These include the use of new stimulus modalities, methods for the detection and analysis of responses, and optimized strategies for determining hearing thresholds.