Premium
Tactile extinction to simple (elementary) and complex stimuli
Author(s) -
Ito K.,
Tanabe H.,
Ikejiri Y.,
Okuda J.,
Sawada T.,
Shiraishi J.
Publication year - 1989
Publication title -
acta neurologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.967
H-Index - 95
eISSN - 1600-0404
pISSN - 0001-6314
DOI - 10.1111/j.1600-0404.1989.tb03845.x
Subject(s) - extinction (optical mineralogy) , psychology , perception , tactile perception , phenomenon , cognitive psychology , audiology , communication , neuroscience , optics , physics , medicine , quantum mechanics
‐ Thirty patients with cerebrovascular disease and 85 control subjects were examined using both the classical tactile extinction test and a modified Quality Extinction Test (modified QET) in order to investigate the so‐called tactile extinction phenomenon to complex stimuli from the qualitative standpoint. As a result, 1) the patients with tactile extinction to simple (elementary) stimuli also manifested extinction to complex tactile stimuli in the modified QET; 2) there were patients who exhibited extinction only to complex tactile stimuli. Our results provide support for the concept that the so‐called tactile extinction phenomenon could result from competition between tactile stimuli presented to both hands at at least 2 different levels of tactile processing, i. e. the process of perception and the process of recognition. When discussing the phenomenon of extinction to complex tactile stimuli, therefore, one should consider these 2 forms of extinction separately.