Kay B Debski

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A stop signal paradigm in combination with heart rate measures were used to test the hypothesis of deficient inhibitory processing in boys with attention deficit hyperactivity disorder (ADHD). The authors measured the inhibitory process initiated by a stop signal by observing its success, its latency using a horse race model, and its impact on the timing of(More)
We tested the hypothesis that mental rotation would delay response-related processing as indicated by transient slowing of the heart beat. Thirty college-age subjects (half female) were presented with normal and mirror image letters rotated at 0, 60, 120, and 180 degrees. Three letters were assigned to a right-hand response; a separate three to a left-hand(More)
We investigated the inhibitory regulation of perceptual-motor processing streams in a task that switched between spatially compatible and incompatible stimulus-response mappings. Thirty male and female college-aged participants performed a reaction time (RT) task in which the response was either spatially compatible or not depending on a cue immediately(More)
We examined the coordination of processing streams when two reaction stimuli are presented with minimal temporal separation (the psychological refractory period, PRP, paradigm). We tested the hypothesis that individuals that grouped responses to the two stimuli would schedule response preparation later than those not-grouping their responses would.(More)
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