Exact(42)
16 healthy non-smokers performed in a stop task while EEG was recorded.
The difficulty of the stop task, requiring withholding of a triggered motor response, was assured by an algorithm that adjusted the task individually so that each subject only succeeded on half of all stop trials, failing on the other half.
Here we use rapid, mixed trial, event-related functional magnetic resonance imaging to correlate brain activation with an extremely difficult situation of inhibitory control in a challenging stop task that controls for noninhibitory functions.
Measures included were a (a) question-based measure of delay discounting, the (b) Experiential Discounting Task (EDT), the (c) Balloon Analogue Risk Task (BART), the (d) Stop Task, and the (e) Go/No-Go Task.
One hour after ingesting the capsule on each session, participants completed mood questionnaires and five impulsivity tasks: go/no-go task, delay discounting task, time estimation task, stop task, and the balloon analogue risk task (BART).
– The effect of methylphenidate (MPH) on inhibitory control as assessed by the stop task in children with attention-deficit/hyperactivity disorder (ADHD) could be influenced by task difficulty and may be mediated by attention.
Similar(18)
The fMRI stop task-based classifier was significantly better than inhibitory performance to discriminate between groups, given that performance did not differ between patients and controls.
Sixteen children with ADHD performed a stop-task, a laboratory task that measures the ability to inhibit an ongoing action, in a double-blind randomized within-subjects design.
In the Stop-task, participants have to stop an already ongoing response which often failed.
However, some studies indicate that children with ADHD are impaired in their performance of other aspects of the stop-task.
The Stop-task was used to investigate inhibitory response control in children with AD/HD, ODD/CD and comorbid AD/HD+ODD/CD in comparison to normal controls.
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