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Stimulus-dependent spatial patterns of response in SI cortex |
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| Authors: | Joannellyn?S?Chiu Mark?Tommerdahl Barry?L?Whitsel |
| Institution: | (1) Departments of Biomedical Engineering, University of North Carolina at Chapel Hill, 27599 Chapel Hill, North Carolina, USA;(2) Cell and Molecular Physiology, University of North Carolina at Chapel Hill, 27599 Chapel Hill, North Carolina, USA |
| Abstract: | BackgroundRecently we reported that vibrotactile flutter stimulation of a skin locus at different amplitudes evokes an optical response confined to the same local region of the primary somatosensory cortex (SI), where its overall magnitude varies proportionally to the flutter amplitude. In this report, we characterize the impact of the flutter amplitude on the spatial patterns of activity evoked within the responding SI region. |
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