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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 Anonymous
ideational praxis task has been asserted to measure the following CONCEPTS
Phenotypes associated with ideational praxis task


ideational apraxia (conceptual apraxia)


No associations have been added.


No associations have been added.

IMPLEMENTATIONS of ideational praxis task
Ideational praxis is part of the ADAScog
EXTERNAL DATASETS for ideational praxis task
No implementations have been added.

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


You must specify conditions before you can define 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.


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).