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

McKenzie, Kirsten J. and Poliakoff, Ellen and 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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