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digit/symbol coding test


a neuropsychological test sensitive to brain damage, dementia, age and depression; 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.
Definition contributed by MLewis about one year ago.

digit/symbol coding test has been asserted to measure the following CONCEPTS
as measured by the contrast



as measured by the contrast



as measured by the contrast



as measured by the contrast



digit/symbol coding test has these PHYLOGENETIC RELATIONSHIPS to other tasks

Descendant of:
Wechsler Adult Intelligence Scale - Revised


Member of collection:
Wechsler Adult Intelligence Scale - Fourth Edition (WAIS-IV)

IMPLEMENTATIONS of digit/symbol coding test

No implementations have been added.

EXTERNAL DATASETS for digit/symbol coding test
No external datasets have been added.
CONDITIONS

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

CONTRASTS
immediate memory copy
general memory copy
digit/symbol coding - symbol copy

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
number of correct symbols

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 two years ago)

Term History

REVISION 3

Definition contributed by NPicchetti about two years ago:
a neuropsychological test sensitive to brain damage, dementia, age and depression; 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 BGregory about two years ago:
a neuropsychological test sensitive to brain damage, dementia, age and depression; consists of (e.g. nine) digit-symbol pairs (e.g. 1/-,2/┴ ... 7/Λ,8/X,9/=) followed by a list of digits[2][3][4]. 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. (from Wikipedia)


REVISION 1

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




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Term Bibliography

Neuropsychological impairment scale (NIS): initial validation study using trailmaking test (A & B) and WAIS digit symbol (scaled score) in a mixed grouping of psychiatric, neurological, and normal patients.
O'Donnell WE, Reynolds DM, De Soto CB
(J Clin Psychol)
1983 Sep
Citation added by CTorgerson about four months ago
Open Abstract | Citation Profile
Cortical areas related to performance of WAIS Digit Symbol Test: a functional imaging study.
Usui N, Haji T, Maruyama M, Katsuyama N, Uchida S, Hozawa A, Omori K, Tsuji I, Kawashima R, Taira M
Neuroscience letters (Neurosci Lett)
2009 Sep 29
Citation added by CTorgerson about four months ago
Open Abstract | Citation Profile
Verbal mediation in the WAIS Digit Symbol subtest.
Koestline, W. Charles, and B. Oran 1969): 377-378.
Psychological Reports 25.2
1969
Citation added by CTorgerson about four months ago
"pgs. 377-378."
Citation Profile
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