Now you feel it, now you don't: how robust is the phenomenon of illusory tactile experience?

McKenzie, Kirsten J., Poliakoff, Ellen, Brown, Richard J. and Lloyd, Donna M. (2010) Now you feel it, now you don't: how robust is the phenomenon of illusory tactile experience? Perception, 39 (6). pp. 839-50. ISSN 0301-0066

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Item Type:Article
Item Status:Live Archive

Abstract

Recent studies have reported that in normal healthy individuals, the perception of illusory sensations in one modality can be induced by the presentation of a stimulus in another modality. These illusory sensations may arise from the activation of a tactile representation in memory induced by the non-target stimulus, in a process mirroring that thought to be responsible for many forms of medically unexplained symptoms. The reliability of illusory-touch reports was investigated here in two experiments with a novel perceptual paradigm designed to simulate the occurrence of somatoform symptoms in the laboratory. A concurrent light significantly increased the number of tactile stimuli reported, and resulted in a higher number of illusory-touch reports, while the modality of the trial start cue did not affect subsequent responses. In addition, a strong relationship was found between the rates of illusory sensations that participants produced in successive sessions, indicating that the tendency to report illusory sensations is a robust phenomenon.

Keywords:Illusory sensation, Signal detection theory, Tactile, Visual
Subjects:C Biological Sciences > C800 Psychology
C Biological Sciences > C850 Cognitive Psychology
Divisions:College of Social Science > School of Psychology
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ID Code:17421
Deposited On:08 May 2015 14:35

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