Reaction Time

501.

Specificity and generalization of visual perceptual learning in humans: an event-related potential study.

To investigate the neural correlates of specificity and generalization of visual perceptual learning, we recorded event-related potentials from human adults when they were trained with a simple visual discrimination task. While reaction times decreased ...
Yulong Ding, Yan Song, Silu Fan, Zhe Qu, Lin Chen (Neuroreport, 200303)
specificity-generalization-visual-perceptual-learning-humans-event.asp

502.

Congruency-induced blindness: a cost-benefit analysis.

Targets are identified more accurately when they are presented during an incongruent response (e.g., a left-pointing arrowhead presented during a right key press) than during a congruent response (e.g., a left-pointing arrowhead presented during a left ...
Chris Oriet, Biljana Stevanovski, Pierre Jolicoeur (Acta Psychol (Amst), 200303)
congruency-induced-blindness-cost-benefit-analysis.asp

503.

Instructed delay activity in the human prefrontal cortex is modulated by monetary reward expectation.

Goal-directed actions are executed with greater efficiency when the goals of the actions are rewarded and so the reward expectation must influence systems concerned with action-planning and motor control. However, little is known about how this influence ...
N Ramnani, R C Miall (Cereb Cortex, 200303)
instructed-delay-activity-human-prefrontal-cortex-modulated-monetary.asp

504.

Longer VEP latencies and slower reaction times to the onset of second-order motion than to the onset of first-order motion.

We compared visual evoked potentials and psychophysical reaction times to the onset of first- and second-order motion. The stimuli consisted of luminance-modulated (first-order) and contrast-modulated (second-order) 1 cpd vertical sine-wave gratings ...
D Ellemberg, K Lavoie, T L Lewis, D Maurer, F Lepore, J-P Guillemot (Vision Res, 200303)
longer-vep-latencies-slower-reaction-times-onset-second-order-motion.asp

505.

The posterior cingulate and medial prefrontal cortex mediate the anticipatory allocation of spatial attention.

The purpose of this study was to identify brain regions underlying internally generated anticipatory biases toward locations where significant events are expected to occur. Subjects fixated centrally and responded to peripheral targets preceded by a ...
D M Small, D R Gitelman, M D Gregory, A C Nobre, T B Parrish, M-M Mesulam (Neuroimage, 200303)
posterior-cingulate-medial-prefrontal-cortex-mediate-anticipatory.asp

506.

Chronometry of parietal and prefrontal activations in verbal working memory revealed by transcranial magnetic stimulation.

We explored the temporal dynamics of parietal and prefrontal cortex involvement in verbal working memory employing single-pulse transcranial magnetic stimulation (TMS). In six healthy volunteers the left or right inferior parietal and prefrontal cortex ...
F M Mottaghy, M Gangitano, B J Krause, A Pascual-Leone (Neuroimage, 200303)
chronometry-parietal-prefrontal-activations-verbal-working-memory.asp

507.

Microglial activation and cell death induced by the mitochondrial toxin 3-nitropropionic acid: in vitro and in vivo studies.

Metabolic impairment of neurons has been implicated in several neurological disorders, but it is not at present known whether such metabolic impairment has deleterious effects on microglia, the phagocytic cells of the central nervous system (CNS). In the ...
Jae K Ryu, Atsushi Nagai, Jean Kim, Min C Lee, James G McLarnon, Seung U Kim (Neurobiol Dis, 200303)
microglial-activation-cell-death-induced-mitochondrial-toxin-.asp

508.

Auditory and visual naming tests: normative and patient data for accuracy, response time, and tip-of-the-tongue.

Naming is typically assessed with visual naming tasks, yet, some patients with genuine word-finding difficulty (evident in auditorily based discourse) show minimal difficulty on such measures. Evidence from cortical mapping, brain imaging and ...
Marla J Hamberger, William T Seidel (J Int Neuropsychol Soc, 200303)
auditory-visual-naming-tests-normative-patient-data-accuracy-response.asp

509.

The effects of practice on the cognitive test performance of neurologically normal individuals assessed at brief test-retest intervals.

Performance on many cognitive and neuropsychological tests may be improved by prior exposure to testing stimuli and procedures. These beneficial practice effects can have a significant impact on test performance when conventional neuropsychological tests ...
Alexander Collie, Paul Maruff, David G Darby, Michael McStephen (J Int Neuropsychol Soc, 200303)
effects-practice-cognitive-test-performance-neurologically-normal.asp

510.

The pattern and timing of breathing during incremental exercise: a normative study.

Clinical evaluation of the pattern and timing of breathing during submaximal exercise can be valuable for the identification of the mechanical ventilatory consequences of different disease processes and for assessing the efficacy of certain ...
J A Neder, S Dal Corso, C Malaguti, S Reis, M B De Fuccio, H Schmidt, J P Fuld, L E Nery (Eur Respir J, 200303)
pattern-timing-breathing-incremental-exercise-normative-study.asp