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In a typical test of memory span, a list of random numbers or letters is read out loud or presented on a computer screen at the rate of one per second. The test begins with two to three numbers, increasing until the person commits errors. At the end of a sequence, the person being tested is asked to recall the items in reverse of the presented order.
Definition contributed by MLewis about five years ago
Member of collection: Alzheimer's Disease Neuroimaging Initiative 1 (ADNI 1)
Descendant of: digit span task
backward digit span task has been asserted to measure the following CONCEPTS
as measured by the contrast:




DISORDERS associated with backward digit span task
No associations have been added.


IMPLEMENTATIONS of backward digit span task
No implementations have been added.
EXTERNAL DATASETS for backward digit span task
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/Memory_span"
NPicchetti (about six years ago)

Term History

REVISION 4

Definition contributed by MLewis about five years ago:a test used to measure working memory, attention, concentration, and mental control. In a typical test of memory span, a list of random numbers or letters is read out loud or presented on a computer screen at the rate of one per second. The test begins with two to three numbers, increasing until the person commits errors. At the end of a sequence, the person being tested is asked to recall the items in reverse of the presented order.

REVISION 3

Definition contributed by BGregory about six years ago:a test used to measure working memory, attention, concentration, and mental control. In a typical test of memory span, a list of random numbers or letters is read out loud or presented on a computer screen at the rate of one per second. The test begins with two to three numbers, increasing until the person commits errors. At the end of a sequence, the person being tested is asked to recall the items in reverse of the presented order.

REVISION 2

Definition contributed by BGregory about eight years ago:a test used to measure working memory, attention, concentration, and mental control. In a typical test of memory span, a list of random numbers or letters is read out loud or presented on a computer screen at the rate of one per second. The test begins with two to three numbers, increasing until the person commits errors. At the end of a sequence, the person being tested is asked to recall the items in reverse of the presented order. (from Wikipedia)

REVISION 1

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

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