The nature of unilateral neglect in the olfactory sensory system

David N. Bellas, Robert A. Novelly, Brenda Eskenazi, Jeanette Wasserstein

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

This study investigated two major theories of unilateral neglect utilizing the ipsilaterally innervated olfactory sense. The sensory theory states that unilateral neglect is due to a diminished or attenuated sensory input. The representational theory states that unilateral neglect is due to a disordered internal representation, which is not dependent on sensory input. Results of the study revealed that right hemisphere lesion patients with left unilateral neglect failed to respond to their left contralateral nostril on olfactory double simultaneous stimulation, consistent with the representational theory because the left nostril has no direct sensory input to the right hemisphere.

Original languageEnglish
Pages (from-to)45-52
Number of pages8
JournalNeuropsychologia
Volume26
Issue number1
DOIs
StatePublished - 1988
Externally publishedYes

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