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The participant is given a sheet of paper and a long envelope. The participant is instructed to pretend to send the letter to himself or herself. The participant is told to put the paper into the envelope, seal it, address it to himself or herself, and stamp it. If the participant forgets part of the task, reinstruction is given. Impairment on this item should reflect dysfunction in executing an overlearned task only and not recall difficulty. The five components to this task are 1) fold letter, 2) put letter in envelope, 3) seal envelope, 4) address envelope, 5) put stamp on envelope.
Definition contributed by PWright about one year ago
Member of collection: ADAScog (Alzheimer's Disease Assessment Scale - Cognitive Subscale, ADAS-Cog)
No relations have yet been associated.
ideational praxis task has been asserted to measure the following CONCEPTS

DISORDERS associated with ideational praxis task
 number of steps completed correctly

IMPLEMENTATIONS of ideational praxis task
Implementation #1 Ideational praxis is part of the ADAScog
EXTERNAL DATASETS for ideational praxis task
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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