Neural representation and adaptation in spatial hearing
MSc Keerthi Kumar Doreswamy
Ústav informatiky, PF UPJŠ
In everyday situations, humans are exposed to multiple concurrent stimuli in complex, continuously changing environments. To correctly extract relevant information, they adapt their processing to reflect the specifics of the current scene, and they learn from previous experience to improve the perceptual strategies used. The project proposes to perform a series of behavioral experiments, brain imaging studies, and computational modelling to study the strategies in sound localization in the distance and azimuth dimensions. This includes studying 1) mechanisms of cue combination and adaptive processes used by the brain in auditory distance perception; 2) neural correlates of distance perception studied by functional neuroimaging (fMRI); and 4) and multivariate fMRI pattern analysis (MVPA) of neural representations. To achieve the project goals, a specific combination of skills and expertise is necessary and hence performed in collaboration with an international consortium of experts in imaging, psychophysics, modeling, training and learning and clinical applications. The results of the project are critical for our understanding of how normal-hearing listeners perceive distance. Information about these processes is needed for the development of prosthetic devices for the hearing impaired and for the development of auditory displays, virtual auditory environments and intelligent search and rescue robots.