Reaction Time

301.

Mixed lateral preference and parental left-handedness: possible markers of risk for PTSD.

Degree of lateral preference (mixed versus consistent), family history of parental left-handedness, and presence of posttraumatic stress disorder (PTSD) were measured in 118 right-handed male U.S. combat veterans. Right-handed participants with mixed ...
Claude M Chemtob, Kristen B Taylor (J Nerv Ment Dis, 200305)
mixed-lateral-preference-parental-left-handedness-possible-markers.asp

302.

Central mechanisms for two-point discrimination in humans.

We studied the cognitive mechanisms for two-point discrimination (TPD) in 11 normal subjects, using electrical pulses. We used six ball-shaped electrodes placed in line on the dorsal surface of the left hand, and two-point was stimulated by two ...
Yohei Tamura, Minoru Hoshiyama, Koji Inui, Ryusuke Kakigi (Neurosci Lett, 200305)
central-mechanisms-two-point-discrimination-humans.asp

303.

Combined perceptual or motor-related expectancies modulated by type of cue.

The interaction of two expectancies was examined. These were either two perceptual or two response-related expectancies. Perceptual expectancies were induced by combining spatial cuing with feature cuing on a trial-by-trial basis. Cues consisted either ...
Uwe Mattler (Percept Psychophys, 200305)
combined-perceptual-or-motor-related-expectancies-modulated-type-cue.asp

304.

Sequential priming is not constrained by the shape of long-term learning curves.

When multiple stimulus-to-response (S-R) mappings are randomly intermixed and repeated in a block of trials, immediate repetitions of an aspect of a stimulus and/or a response can facilitate stimulus detection, classification, and/or response ...
Satoru Suzuki, Brian A Goolsby (Percept Psychophys, 200305)
sequential-priming-not-constrained-shape-long-term-learning-curves.asp

305.

Error monitoring using external feedback: specific roles of the habenular complex, the reward system, and the cingulate motor area revealed by functional magnetic resonance imaging.

The dopaminergic system has been shown to be involved in the processing of rewarding stimuli, specifically of errors in reward prediction, in animal studies as well as in recent neuroimaging studies in humans. Furthermore, a specific role of dopamine in ...
Markus Ullsperger, D Yves von Cramon (J Neurosci, 200305)
error-monitoring-external-feedback-specific-roles-habenular-complex.asp

306.

Interhemispheric visuo-motor integration in humans: the effect of redundant targets.

We used event-related functional magnetic resonance imaging (fMRI) to investigate the functional locus of response facilitation during parallel visuo-motor processing. In a simple reaction-time task, subjects typically respond faster to two copies of the ...
Marco Iacoboni, Eran Zaidel (Eur J Neurosci, 200305)
interhemispheric-visuo-motor-integration-humans-effect-redundant.asp

307.

Startle magnitude and prepulse inhibition: effects of alcohol and attention.

BACKGROUND: Previous studies of the effects of attention on prepulse inhibition (PPI) have not accounted for the effects of attention on control (i.e. pulse alone) trials. In addition, there have been no studies of the effects of alcohol on the ...
Kent E Hutchison, John McGeary, Angela Wooden, Terry Blumenthal, Tiffany Ito (Psychopharmacology (Berl), 200305)
startle-magnitude-prepulse-inhibition-effects-alcohol-attention.asp

308.

Preparing for perception and action (I): the role of grouping in the response-cuing paradigm.

Human skilled behavior requires preparatory processes that selectively make sensory and motor systems more efficient for perceiving the upcoming stimulus and performing the correct action. We review the literature concerning these preparatory processes ...
Jos J Adam, Bernhard Hommel, Carlo Umiltà (Cognit Psychol, 200305)
preparing-perception-action-role-grouping-response-cuing-paradigm.asp

309.

Improvement in response times for simple and complex tasks after electroconvulsive therapy.

BACKGROUND: Electroconvulsive therapy (ECT) has gone through fundamental changes since its introduction in 1938 and has developed from a frightening and distrusted procedure into an effective and safe treatment for people with severe psychiatric ...
Roland Kalb, Kathrin Ellinger, Udo Reulbach (Prog Neuropsychopharmacol Biol Psychiatry, 200305)
improvement-response-times-simple-complex-tasks-after.asp

310.

Tactile dominance in speeded discrimination of textures.

When assessing the roughness of textures, no single sensory modality universally dominates perception. Instead, the task and stimuli critically determine to what extent a given sense is favoured. We report a visuotactile texture assessment experiment, ...
Steve Guest, Charles Spence (Exp Brain Res, 200305)
tactile-dominance-speeded-discrimination-textures.asp