MIT HST 722J - Multisensory contributions to low-level, unisensory processing (5 pages)

Previewing pages 1, 2 of 5 page document View the full content.
View Full Document

Multisensory contributions to low-level, unisensory processing



Previewing pages 1, 2 of actual document.

View the full content.
View Full Document

Unformatted text preview:

Multisensory contributions to low level unisensory processing Charles E Schroeder and John Foxe Neurobiologists have traditionally assumed that multisensory integration is a higher order process that occurs after sensory signals have undergone extensive processing through a hierarchy of unisensory subcortical and cortical regions Recent findings however question this assumption Studies in humans nonhuman primates and other species demonstrate multisensory convergence in low level cortical structures that were generally believed to be unisensory in function In addition to enriching current models of multisensory processing and perceptual functions these new findings require a revision in our thinking about unisensory processing in low level cortical areas Addresses Cognitive Neuroscience and Schizophrenia Program The Nathan Kline Institute for Psychiatric Research 140 Old Orangeburg Rd Orangeburg NY 10962 and Program in Cognitive Neuroscience Department of Psychology The City College of the City University of New York North Academic Complex 138th Street and Convent Avenue New York NY 10031 USA Corresponding author Schroeder Charles E schrod nki rfmh org Current Opinion in Neurobiology 2005 15 454 458 This review comes from a themed issue on Sensory systems Edited by David Julius and Andrew King Available online 12th July 2005 0959 4388 see front matter 2005 Elsevier Ltd All rights reserved DOI 10 1016 j conb 2005 06 008 Introduction Recent studies in both monkey and human subjects have provided evidence for multisensory convergence at lowlevel putatively unisensory stages of the sensory cortical pathways 1 10 11 For example somatosensory responses can be observed in auditory belt cortical regions i e at the second level of auditory processing 4 and eye position input modulates auditory responses even at the primary cortical A1 level 12 13 Parallel findings have emerged in carnivores 12 14 Most dramatically two laboratories 15 16 have shown anatomical interconnections



View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view Multisensory contributions to low-level, unisensory processing and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Multisensory contributions to low-level, unisensory processing and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?