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a collaborative knowledge base characterizing the state of current thought in Cognitive Science.
A task in which subjects are presented with a stream of letters, and must respond to one of the letters and refrain from responding to any other letters. The Penn Continuous Performance Test (PCPT) uses a standard CPT paradigm. The participant responds to a set of 7-segment displays presented 1/sec., whenever they form a digit (NUMBERS, initial 3 min) or letter (LETTERS, next 3 min). The number of true positive responses is recorded as the accuracy score and the median response time for true positive responses is the measure of attention speed.

Definition contributed by Anonymous
Penn continuous performance task has been asserted to measure the following CONCEPTS
as measured by the contrast:

Phenotypes associated with Penn continuous performance task


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IMPLEMENTATIONS of Penn continuous performance task
No implementations have been added.
EXTERNAL DATASETS for Penn continuous performance task
No implementations have been added.

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.

response time

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).


Clinical Utility of the Conners' Continuous Performance Test-II to Detect Poor Effort in U.S. Military Personnel Following Traumatic Brain Injury.
Lange RT, Iverson GL, Brickell TA, Staver T, Pancholi S, Bhagwat A, French LM
Psychological assessment (Psychol Assess)
2012 Dec 17

A cognitive neuroscience-based computerized battery for efficient measurement of individual differences: standardization and initial construct validation.
Gur RC, Richard J, Hughett P, Calkins ME, Macy L, Bilker WB, Brensinger C, Gur RE
Journal of neuroscience methods (J Neurosci Methods)
2010 Mar 30

Associations between event-related potentials and measures of attention and inhibition in the Continuous Performance Task in children with ADHD and normal controls.
Overtoom CC, Verbaten MN, Kemner C, Kenemans JL, van Engeland H, Buitelaar JK, Camfferman G, Koelega HS
(J Am Acad Child Adolesc Psychiatry)
1998 Sep

The continuous performance test: a window on the neural substrates for attention?
Riccio CA, Reynolds CR, Lowe P, Moore JJ
(Arch Clin Neuropsychol)
2002 Apr