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a task that requires the reordering of an initially unordered set of letters and numbers
Synonyms: letter-number sequencing
Definition contributed by RPoldrack about six years ago

Descendant of: Wechsler Adult Intelligence Scale - Revised
letter number sequencing has been asserted to measure the following CONCEPTS
as measured by the contrast:
  • Please add a contrast

as measured by the contrast:
  • Please add a contrast

as measured by the contrast:
  • Please add a contrast

DISORDERS associated with letter number sequencing
No associations have been added.

IMPLEMENTATIONS of letter number sequencing
No implementations have been added.
EXTERNAL DATASETS for letter number sequencing
No external datasets have been added.
No conditions have yet been associated.

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


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.


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).

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Term Bibliography

Does the letter number sequencing task measure anything more than digit span?
Crowe SF
2000 Jun
Citation added by CTorgerson about seven years ago
Citation Profile

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