Interference of 50 Hz electrical cortical potentials evoked by TV systems.
نویسندگان
چکیده
Application of TV systems for generating patterned stimuli for the examination of the electrical cortical potentials has disadvantages caused by the frame frequency of 50 Hz of TV sets. Apart from a larger variability in latency times of the electrical potentials as compared to the results obtained by projector systems, a 50-Hz noise on the recordings mediated through the visual system may be seen. These disadvantages can be ameliorated by increasing the frame frequency of the TV set.
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ورودعنوان ژورنال:
- The British journal of ophthalmology
دوره 63 11 شماره
صفحات -
تاریخ انتشار 1979