Difference between revisions of "Stop-Signal Task"
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* Description | * Description | ||
| − | The Stop | + | The Stop Signal Task is bes described as a laboratory measure of inhibitory control. The task itself requires quick execution of a thought or action, and the occassional inhibition of this behavior. On the computerized task subjects are asked to respond as fast as they can to symbols (ex. letters) presented on a computer screen. A certain portion of the trials will be accompanied by an auditory tone. This auditory tone tells the participant that they are to try and withold their response to the current symbol on the screen. The tone occurs occasionally, is unpredictable, and occurs at various latencies after the appearance of the letter on the computer. The SSRT, stop signal reaction time, is an estimation of the tie an individual needs to stop their usual behavior (i.e. pressing a key every time they see the symbol) in response to the stop signal. SSRT is a combination of the stop signal and primary "go" response time. As a measure of inhibitory control, this task is often used in the diagnosis of [[ADHD]] and [[Schizophrenia]]. |
* History | * History | ||
Revision as of 10:57, 14 July 2008
Contents
Stop-Signal Task
Basic Characteristics
- Description
The Stop Signal Task is bes described as a laboratory measure of inhibitory control. The task itself requires quick execution of a thought or action, and the occassional inhibition of this behavior. On the computerized task subjects are asked to respond as fast as they can to symbols (ex. letters) presented on a computer screen. A certain portion of the trials will be accompanied by an auditory tone. This auditory tone tells the participant that they are to try and withold their response to the current symbol on the screen. The tone occurs occasionally, is unpredictable, and occurs at various latencies after the appearance of the letter on the computer. The SSRT, stop signal reaction time, is an estimation of the tie an individual needs to stop their usual behavior (i.e. pressing a key every time they see the symbol) in response to the stop signal. SSRT is a combination of the stop signal and primary "go" response time. As a measure of inhibitory control, this task is often used in the diagnosis of ADHD and Schizophrenia.
- History
- References
Nichols and Waschbusch, 2004. A review of the validity of laboratory cognitive tasks used to assess symptoms of ADHD PMID 15039603
Related Information
- Cognitive construct associated with this task (vote for your favorite, or nominate a new construct label by editing this page):
- Indicators (dependent variables, conditions, or contrasts; measurement variables used for analysis) associated with this task (vote or nominate by editing this page):
- Closely related pages (vote or nominate related pages by editing this page):
- CNP Level
External Resources
- Links out:
- Google: Stop-Signal Task
- Wikipedia: Stop-Signal Task
- PubBrain: Stop-Signal Task
- PubMed: Stop-Signal Task
- -ucla cognitive atlas- (coming soon!)
- Database links
