EEG and visual recognition: Confirmation of the Pitt's and McCulloch's idea of a scanning process in the visual cortex

Shevelev, I. A.; Kamenkovich, V. M.; Kostelyanets, N.B.; Sharaev, C.A.

doi:10.1016/0167-8760(89)90322-x

Cited by 2 publications

(3 citation statements)

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“…Our previous study showed [24,[27][28][29][30] that the wave of excitation which is locked to the alpha component of EEG appears in the cortical projection of the near periphery of the visual field (9-12 ° from gaze). The wave travels to the cortical representation of the fovea and reaches it during the alpha wave period.…”

Section: Characteristics Of the Scanning Wave In The Visual Cortexmentioning

confidence: 99%

“…Our previous studies tested the consequences of the original hypothesis for recognition of the stationary (flashing) geometrical figures [24][25][26][27][28][29][30]. We revealed an inverse relation between figure size and phases of alpha wave.…”

Section: Introductionmentioning

confidence: 97%

“…Previously we predicted direct consequences of the original scanning idea [24,[27][28][29][30]. Let us suppose that the scanning wave spreads from the central to the peripheral part of the vi~ual cortical area [19].…”

Section: Introductionmentioning

confidence: 99%

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Recognition of direction of uniform and accelerated visual motion and EEG alpha wave phases

et al. 1996

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The perception of visual motion in seven subjects was studied comparing motion towards or away from the fixation point in the left or right hemifield. The light target was moved either at a constant velocity or positively or negatively accelerated to compensate for the magnification factor of the visual cortex. We compared probability and latency of motion recognition when it was asynchronous or synchronized to different phases of the alpha wave of the EEG recorded over the occipital cortex. If the motion accelerated away from the fixation point and was synchronized with the alpha wave it was more likely to be perceived whereas if it was towards the fixation point it was less likely to be detected. However, perception of the constant vdocity motion was not changed by locking it to the alpha wave phase. These results support the hypothesis that the scanning waves of excitation spread over the visual cortex periodically and that they are locked to the alpha component of the EEG.

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Section: Characteristics Of the Scanning Wave In The Visual Cortexmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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Recognition of direction of uniform and accelerated visual motion and EEG alpha wave phases

et al. 1996

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Auditory-evoked responses influenced by presence or absence of EEG alpha activity and actual cognitive state

Maras

Palejev

Radil

1993

International Journal of Psychophysiology

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EEG and visual recognition: Confirmation of the Pitt's and McCulloch's idea of a scanning process in the visual cortex

Cited by 2 publications

References 1 publication

Recognition of direction of uniform and accelerated visual motion and EEG alpha wave phases

Recognition of direction of uniform and accelerated visual motion and EEG alpha wave phases

Auditory-evoked responses influenced by presence or absence of EEG alpha activity and actual cognitive state

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