Distribution of visual and saccade related information in the monkey inferior colliculus.
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The inferior colliculus (IC) is an essential stop early in the ascending auditory pathway. Though normally thought of as a predominantly auditory structure, recent work has uncovered a variety of non-auditory influences on firing rate in the IC. Here, we map the location within the IC of neurons that respond to the onset of a fixation-guiding visual stimulus. Visual/visuomotor associated activity was found throughout the IC (overall, 84 of 199 sites tested or 42%), but with a far reduced prevalence and strength along recording penetrations passing through the tonotopically organized region of the IC, putatively the central nucleus (11 of 42 sites tested, or 26%). These results suggest that visual information has only a weak effect on early auditory processing in core regions, but more strongly targets the modulatory shell regions of the IC.
Published Version (Please cite this version)10.3389/fncir.2012.00061
Publication InfoGroh, Jennifer; & Bulkin, David A (2012). Distribution of visual and saccade related information in the monkey inferior colliculus. Frontiers in neural circuits, 6(SEPTEMBER). pp. 61. 10.3389/fncir.2012.00061. Retrieved from https://hdl.handle.net/10161/17892.
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Professor of Psychology and Neuroscience
Research in my laboratory concerns how sensory and motor systems work together, and how neural representations play a combined role in sensorimotor and cognitive processing (embodied cognition). Most of our work concerns the interactions between vision and hearing. We frequently perceive visual and auditory stimuli as being bound together if they seem likely to have arisen from a common source. That's why we tend not to notice that the speakers on TV sets or in movie theatres are located bes