Journal
HEARING RESEARCH
Volume 258, Issue 1-2, Pages 89-99Publisher
ELSEVIER
DOI: 10.1016/j.heares.2009.04.009
Keywords
Perception; Auditory cortex; Vision; Multisensory
Funding
- NEI NIH HHS [R01 EY013458, R01 EY013458-08, R01 EY013458-07, R01 EY013458-02, R01 EY013458-05, R01 EY013458-03, R01 EY013458-06, R01 EY013458-01, R01 EY013458-04] Funding Source: Medline
- NIA NIH HHS [R21 AG024372-02, R21 AG024372] Funding Source: Medline
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The nervous system has evolved to transduce different types of environmental energy independently, for example light energy is transduced by the retina whereas sound energy is transduced by the cochlea. However, the neural processing of this energy is necessarily combined, resulting in a unified percept of a real-world object or event. These percepts can be modified in the laboratory, resulting in illusions that can be used to probe how multisensory integration occurs. This paper reviews studies that have utilized such illusory percepts in order to better understand the integration of auditory and visual signals in primates. Results from human psychophysical experiments where visual stimuli alter the perception of acoustic space (the ventriloquism effect) are discussed, as are experiments probing the underlying cortical mechanisms of this integration. Similar psychophysical experiments where auditory stimuli alter the perception of visual temporal processing are also described. (C) 2009 Elsevier B.V. All rights reserved
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