Task Definition
A task in which items (e.g., letters) are presented one at a time and participants must identify each item that repeats relative to the item that occurred "n" items before its onset.

Definition contributed by ALenartowicz about one year ago.

Task Conditions
Name
Description


0-back
A condition requiring stimulus matching but not working memory

3-back
A condition requiring memory for stimuli occurring 3 stimuli back

1-back
A condition requiring memory for stimuli occurring 1 stimuli back

2-back
A condition requiring memory for stimuli occurring 2 stimuli back

3-back
A condition requiring memory for stimuli occurring 3 stimuli back



Task Contrasts


Task Indicators


Related Assertions
n-back task is descended from Continuous Performance Task   

working memory is measured by the contrast of 1-back trials in the n-back task   

working memory is measured by the contrast of 2-back trials in the n-back task   

working memory is measured by the contrast of 3-back trials in the n-back task   

working memory is measured by the contrast of 3-back minus 1-back trials in the n-back task   

letter n-back task is a kind of n-back task   

face n-back task is a kind of n-back task   



Bibliography
N-back working memory paradigm: a meta-analysis of normative functional neuroimaging studies.
Owen AM, McMillan KM, Laird AR, Bullmore E
Human brain mapping (Hum Brain Mapp)
2005 May
Open Abstract | Citation Profile


Discussion
No commentary has yet been appended for n-back task.




Revision History
There are no previous definitions.

Task Phylogeny
Descendant of: Continuous Performance Task


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