Muscle contraction and relaxation-response time in response to on or off status of visual stimulus
نویسندگان
چکیده
منابع مشابه
Response time of stroke patients to a visual stimulus.
We used a computer program to test response time among stroke patients in a clinical setting. Visual stimuli were presented to 82 hospitalized stroke patients, to 21 hospitalized controls, and to 76 nonhospitalized controls. Stroke patients had longer mean response times than controls. Patients with right hemispheric lesions had longer response times than those with left hemispheric lesions whe...
متن کاملAn fMRI study of human visual cortex in response to spatiotemporal properties of visual stimuli
ABSTRACT Background: The brain response to temporal frequencies (TF) has been already reported, but with no study reported for different TF with respect to various spatial frequencies (SF). Materials and Methods: fMRI was performed by 1.5T GE-system in 14 volunteers during checkerboard, with TFs of 4, 6, 8 and 10Hz in low and high SFs of 0.5 and 8cpd. Results: Average percentage BOLD signa...
متن کاملCortical Off Response Tuning for Stimulus Duration
To answer the question whether OFF response amplitude (firing rate) of visual cortical cells varies as a function of stimulus duration, a series of such cells from areas 17 and 18 of the cat were investigated with a stationary light bar, presented for different durations (10-3200 msec) over the receptive field. Out of a sample of 174 cells tested, 58 cells were found for which the OFF responses...
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ژورنال
عنوان ژورنال: Journal of Physiological Anthropology
سال: 2014
ISSN: 1880-6805
DOI: 10.1186/1880-6805-33-23