Peripheral and central delay in processing high spatial frequencies: reaction time and VEP latency studies.
作者： Milena Mihaylova , Vladislav Stomonyakov , Angel Vassilev
DOI: 10.1016/S0042-6989(98)00165-5
关键词:
摘要: Visually evoked potentials (VEP) and reaction time (RT) were recorded under stimulation with sinusoidal gratings. Grating spatial frequency (SF) was 0.5, 5 or 12 cd grating contrast varied. Consistent previous findings, both VEP latency RT increased the increase of SF decrease contrast. It found, in addition, that by approximately same amount when from 0.5 to cd, thus suggesting main source delay at comparison is peripheral origin. However, data much more than latency. We conclude high involves a substantial central component addition delay.
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