Steady State Evoked Responses as a Measure of Tracking Difficulty.

Wilson, Glenn F.

doi:10.21236/ada082172

Cited by 2 publications

(1 citation statement)

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“…When a light stimulus is presented with the light intensity sinusoidally modulated, the result is called a steady state evoked response (SSER). Work done in this azea (Regan, 1975;Spekreijse, 1966;Wilson and O'Donnel, 1981;Wilson, 1979) suggests that the SSER may be a useful indicator of internal cortical functioning. Since a response can be obtained for single sine wave stimulus, we hypothesized that it would be possible to obtain an evoked response to light modulated by a sum of sine waves and, furziiermore, chat the response would reflect changes in cognitive processing.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Steady State Visually Evoked Cortical Response

Junker

Peio

1983

Proceedings of the Human Factors Society Annual Meeting

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Steady state visually evoked cortical responses were obtained by sinusoidally modulating f2uoresaent lights. Sums of sine waves with a frequency range of 5.5 Hz to 49 Hz were presented simultaiieously to subjects to allow a control theoretic examination of the describing function of the EEG response. Subjects observed the stimulus in a "lights only" condition and were also tested viewing the flickering lights while doing a video decision task presented in the same field. Results indicate that reconstruction of the describing function across several frequencies was consistent for replications of each condition. Differences between the decision condition and lights only were observed around 9.5 Hz to 11.5 Hz. Frequency dependent sensitivity to the evoking stimulus was observed, and individual differences were indicated in frequency sensitivity to the evoking stimuli.

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Section: Introductionmentioning

confidence: 99%