I plan to explore the ways in which different types of auditory information, including linguistic, biological, and artificial sounds, are processed in the brain. More specifically, I will measure normal adults' abilities to discriminate these stimuli based on both motion and brief temporal differences. It is possible that linguistics stimuli, for which fast temporal processing is crucial, may be more easily processed in terms of motion. By matching non-identifiable sounds in complexity, spectral change, and band-width to each of the types of stimuli mentioned above, it will also be possible to determine if differences in the ways in which these sounds are processed are best attributed to physical differences in the stimuli or to the goals of processing. If the different types of stimuli are processed differently, it is likely that such processing involves different cortical areas. By using ERP and MEG methods, it will be possible to determine the precise times at which the processing of these different stimulus types is differentiated into different cortical pathways. By using fMRI, it will possible to determine which cortical areas are involved in processing auditory stimuli are involved in processing auditory stimuli with specific physical features and for specific goals.

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Postdoctoral Individual National Research Service Award (F32)
Project #
1F32DC005291-01
Application #
6445753
Study Section
Communication Disorders Review Committee (CDRC)
Program Officer
Sklare, Dan
Project Start
2002-01-01
Project End
Budget Start
2002-01-01
Budget End
2002-12-31
Support Year
1
Fiscal Year
2002
Total Cost
$36,592
Indirect Cost
Name
University of Maryland College Park
Department
Psychology
Type
Schools of Arts and Sciences
DUNS #
City
College Park
State
MD
Country
United States
Zip Code
20742
Sanders, Lisa D; Poeppel, David (2007) Local and global auditory processing: behavioral and ERP evidence. Neuropsychologia 45:1172-86
Stevens, Courtney; Sanders, Lisa; Neville, Helen (2006) Neurophysiological evidence for selective auditory attention deficits in children with specific language impairment. Brain Res 1111:143-52
Sanders, Lisa D; Stevens, Courtney; Coch, Donna et al. (2006) Selective auditory attention in 3- to 5-year-old children: an event-related potential study. Neuropsychologia 44:2126-38
Coch, Donna; Sanders, Lisa D; Neville, Helen J (2005) An event-related potential study of selective auditory attention in children and adults. J Cogn Neurosci 17:605-22