Investigating multisensory spatial cognition through the phenomenon of extinction
This chapter examines multisensory spatial cognition through the so-called clinical extinction phenomenon. It presents extinction-based evidence to illustrate the peculiar nature of multisensory processing occurring in pericorporeal space and discusses the plastic features of such processing. The findings suggest that for visual-tactile extinction patients the use of tools as an extension of reachable space may dynamically modulate the multisensory processing of farther, non-reachable sectors of space. This chapter proposes a model of the tactile extinction phenomenon and shows that somatosensory performance is lower when reporting double simultaneous stimuli in neurologically healthy participants.
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