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DSST is a neuropsychological test sensitive to brain damage, dementia, age and depression. It isn’t 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. 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.

Synonyms: digit symbol substitution task, DSST
Definition contributed by PWright about ten months ago
Member of collection: Alzheimer's Disease Neuroimaging Initiative 1 (ADNI 1)
Descendant of: Wechsler Adult Intelligence Scale - Revised
symbol-digit substitution has been asserted to measure the following CONCEPTS

No associations have yet been added

DISORDERS associated with symbol-digit substitution
No associations have been added.


IMPLEMENTATIONS of symbol-digit substitution
Implementation #1 The DSST was used in the ADNI 1 Cognitive Assessments, which can be downloaded from the link.
EXTERNAL DATASETS for symbol-digit substitution
No external datasets have been added.
CONDITIONS
No conditions have yet been associated.


Experimental conditions are the subsets of an experiment that define the relevant experimental manipulation.

CONTRASTS

In the Cognitive Atlas, we define a contrast as any function over experimental conditions. The simplest contrast is the indicator value for a specific condition; more complex contrasts include linear or nonlinear functions of the indicator across different experimental conditions.

INDICATORS

An indicator is a specific quantitative or qualitative variable that is recorded for analysis. These may include behavioral variables (such as response time, accuracy, or other measures of performance) or physiological variables (including genetics, psychophysiology, or brain imaging data).


User Discussion


"Initial definition retrieved from http://en.wikipedia.org/wiki/Digit_symbol_substitution_test"
NPicchetti (about six years ago)

Term History

REVISION 3

Definition contributed by NPicchetti about six years ago:DSST is a neuropsychological test sensitive to brain damage, dementia, age and depression. It isn’t 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. 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.

REVISION 2

Definition contributed by NPicchetti about six years ago:DSST is a neuropsychological test sensitive to brain damage, dementia, age and depression. It isn’t 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. 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. Digit symbol substitution test. Retrieved from http://en.wikipedia.org/wiki/Digit_symbol_substitution_test

REVISION 1

Definition contributed by SAdministrator about eight years ago:No definition submitted yet

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