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Digit symbol substitution test (DSST) is a neuropsychological test sensitive to brain damage, dementia, age and depression. The test is not sensitive to the location of brain-damage (except for damage comprising part of the visual field).〔 〕 It consists of (e.g. nine) digit-symbol pairs (e.g. 1/-,2/┴ ... 7/Λ,8/X,9/=) followed by a list of digits.〔http://www.stacommunications.com/journals/diagnosis/2002/02-February/dxfeb02Concussion.pdf〕〔http://www.sportmed.mb.ca/uploads/pdfs/Concussions-Craton.pdf〕 Under each digit the subject should write down the corresponding symbol as fast as possible. The number of correct symbols within the allowed time (e.g. 90 or 120 sec) is measured. The DSST contained in the Wechsler Adult Intelligence Scale is called 'Digit Symbol' (WAIS-R), 'Digit-Symbol-Coding' (WAIS-III), or most recently, 'Coding' (WAIS-IV). Based on The Boston Process Approach to assessment, in order to examine the role of memory in Digit-Symbol-Coding performance, WAIS-III (but not WAIS-IV) contains an optional implicit learning test: after the Digit Symbol-Coding test paired and free recall of the symbols is assessed.〔 〕 ==See also== *Four boxes test 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Digit symbol substitution test」の詳細全文を読む スポンサード リンク
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