Reaction Time

11.

Firing rate of the noisy quadratic integrate-and-fire neuron.

We calculate the firing rate of the quadratic integrate-and-fire neuron in response to a colored noise input current. Such an input current is a good approximation to the noise due to the random bombardment of spikes, with the correlation time of the ...
Nicolas Brunel, Peter E Latham (Neural Comput, 200310)
firing-rate-noisy-quadratic-integrate-fire-neuron.asp

12.

Spatiotemporal separability in the human cortical response to visual motion speed: a magnetoencephalography study.

Humans can estimate the speed of an objects motion independently of other visual information. Although speed-related neural activity is known to exist in the primate brain, there has been no physiological study that investigated where and how the speed ...
Lihong Wang, Yoshiki Kaneoke, Ryusuke Kakigi (Neurosci Res, 200309)
spatiotemporal-separability-human-cortical-response-visual-motion.asp

13.

Therapeutic effect of repetitive transcranial magnetic stimulation on motor function in Parkinsons disease patients.

Cortical excitability of the primary motor cortex is altered in patients with Parkinsons disease (PD). Therefore, modulation of cortical excitability by high frequency repetitive transcranial magnetic stimulation (rTMS) of the motor cortex might result ...
E M Khedr, H M Farweez, H Islam (Eur J Neurol, 200309)
therapeutic-effect-repetitive-transcranial-magnetic-stimulation-motor.asp

14.

Programming of expected and unexpected movements: effects on the onset of the lateralized readiness potential.

When participants utilize prime information to prepare some or all aspects of the forthcoming movement, reaction time (RT) costs are obtained when the imperative response signal demands an unexpected rather than an expected movement. Longer RT in trials ...
Hartmut Leuthold (Acta Psychol (Amst), 200309)
programming-expected-unexpected-movements-effects-onset-lateralized.asp

15.

Errors are foreshadowed in brain potentials associated with action monitoring in cingulate cortex in humans.

Previous studies have reported electrophysiological brain activity that is modulated when subjects commit errors in speeded reaction time tasks. This activity is thought to index an action monitoring system in anterior cingulate cortex that signals the ...
K Richard Ridderinkhof, Sander Nieuwenhuis, Theodore R Bashore (Neurosci Lett, 200309)
errors-foreshadowed-brain-potentials-associated-action-monitoring.asp

16.

Motor control and children with autism: deficit of anticipatory function?

This study aims at investigating how do anticipatory postural adjustments develop in children with autism, during a bimanual load-lifting task that required maintaining the stabilisation of the forearm despite imposed or voluntary unloading. Elbow angle ...
Christina Schmitz, Joëlle Martineau, Catherine Barthélémy, Christine Assaiante (Neurosci Lett, 200309)
motor-control-children-autism-deficit-anticipatory-function.asp

17.

Response-monitoring dysfunction in aging and Alzheimers disease: an event-related potential study.

Executive control is a broad-reaching function that includes response monitoring and is likely implemented in the frontal lobes. Age- and dementia-related changes in response-monitoring were assessed during a Picture-Name Verification Task, using ...
Daniel H Mathalon, Amy Bennett, Nusha Askari, E Max Gray, Margaret J Rosenbloom, Judith M Ford (Neurobiol Aging, 200309)
response-monitoring-dysfunction-aging-alzheimer-s-disease-event.asp

18.

Orienting of attention and Parkinsons disease: tactile inhibition of return and response inhibition.

There is growing evidence for cognitive impairments in Parkinsons disease (PD), including in the orienting of attention and inhibition of return (IOR). IOR refers to the slowing of a response to a target stimulus presented in the same location as a ...
Ellen Poliakoff, Donald J OBoyle, A Peter Moore, Francis P McGlone, Frederick W J Cody, Charles Spence (Brain, 200309)
orienting-attention-parkinson-s-disease-tactile-inhibition-return.asp

19.

The effect of transcranial magnetic stimulation over the cerebellum on the synkinesis of coordinated eye and head movements.

We made a study of coordinated saccadic eye and head movements following random and predictable horizontal visual targets by applying transcranial magnetic stimulation (TMS) over the cerebellum before the start of the gaze movement. We have found three ...
M Nagel, W H Zangemeister (J Neurol Sci, 200309)
effect-transcranial-magnetic-stimulation-over-cerebellum-synkinesis.asp

20.

Behavioural cues are associated with modulations of synchronous oscillations in the human subthalamic nucleus.

The speed with which one reacts to an imperative signal depends on the extent to which preceding cues predict that command. When reliable warning cues are available, the processing of the imperative stimulus can be favoured and responses partially ...
David Williams, Andrea Kühn, Andreas Kupsch, Marina Tijssen, Gerard van Bruggen, Hans Speelman, Gary Hotton, Kielan Yarrow, Peter Brown (Brain, 200309)
behavioural-cues-associated-modulations-synchronous-oscillations.asp