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a small object moving at constant velocity passes behind an opaque barrier. The task is to estimate the moment when the object will reappear. It differs from a number of other time-estimate tasks in that discrete mediating responses such as counting or taping are of no direct obvious aid.
Definition contributed by CTorgerson about five years ago

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Time Wall has been asserted to measure the following CONCEPTS

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DISORDERS associated with Time Wall
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Experimental conditions are the subsets of an experiment that define the relevant experimental manipulation.

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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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