No Specific Effects of Caloric Stimulation on the Visual-Imagery Processes of Normal Subjects

Author:

Alway David1,Nichelli Paolo2,Shotland Lawrence I.3,Appollonio Ildebrando4,Grafman Jordan1

Affiliation:

1. Cognitive Neuroscience Section Medical Neurology Branch National Institute of Neurological Disorders and Stroke

2. Hearing Section, Neuro-otology Branch National Institute on Deafness and Other Communicative Disorders

3. Cognitive Neuroscience Section, Medical Neurology Branch National Institute of Neurological Disorders and Stroke

4. Cognitive Neuroscience Section, Medical Neurology Branch National Institute of Neurological Disorders and Stroke Clinica Neurologica Universifa di Milano

Abstract

Recent research indicates that neglect can be temporarily, but only partially, ameliorated by activating the contralateral hemisphere via caloric stimulation and other techniques. In this study, we evaluated whether caloric srimulation could be used to manipulate visual-imagery processes in normal subjects. 11 normal subjects participated in a quantitative visual-imagery task while undergoing caloric stimulation. Neither side of report nor ear of caloric stimulation affected performance. Possible reasons for this negative result are reviewed.

Publisher

SAGE Publications

Subject

Sensory Systems,Experimental and Cognitive Psychology

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