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Sensorimotor Foundations of Higher
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Patrick Haggard

Print publication date: 1993

Print ISBN-13: 9780199231447

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780199231447.001.0001

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Investigating multisensory spatial cognition through the phenomenon of extinction

Investigating multisensory spatial cognition through the phenomenon of extinction

(p.182) (p.183) 9 Investigating multisensory spatial cognition through the phenomenon of extinction
Sensorimotor Foundations of Higher Cognition

Alessandro Farnè

Claudio Brozzoli

Elisabetta Làdavas

Tony Ro

Oxford University Press

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.

Keywords:   spatial cognition, clinical extinction, multisensory processing, pericorporeal space, somatosensory performance

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