IEICE TRANSACTIONS on Information
Influence of Visual Stimulus on Amplitude and Phase of Alpha Wave as Measured by Multi-Channel EEG
Summary :
The objective of this paper is to study the relationship between a visual stimulus and the amplitude and phase of the alpha wave as a first step to investigating a change in the background wave after a sensory stimulus and an evoked potential. We examined the effect of a single visual stimulus on the amplitude and phase of alpha waves using the complex demodulation method. The visual stimuli were generated by an LED mounted in goggles with the eyes-closed condition. The amplitude of the alpha wave decreased gradually after the stimulus, until it reached a minimum at around 300 ms after the stimulus. The alpha wave continued to increase, showing some rebound, and returning again to the pre-stimulus level. The phase variation after the stimulus tends to be considerably larger than that before the stimulus. Moreover, the average phase returned to the same slope as the pre-stimulus by 2550 ms after the stimulus. The visual stimulus has an effect on the alpha wave until about 2500 ms after the stimulus. The phase variation difference before and after stimulus is significant from 112 ms to 678 ms after the stimulus. This finding suggests there is a partially pararell time course between the change in VEPs plus ERP complex and the alpha wave.
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- IEICE TRANSACTIONS on Information Vol.E86-D No.11 pp.2444-2451
- Publication Date
- 2003/11/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Medical Engineering
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Tadanori FUKAMI, Kazuhito HAYASHI, Takamasa SHIMADA, Takao AKATSUKA, Yoichi SAITO, "Influence of Visual Stimulus on Amplitude and Phase of Alpha Wave as Measured by Multi-Channel EEG" in IEICE TRANSACTIONS on Information,
vol. E86-D, no. 11, pp. 2444-2451, November 2003, doi: .
Abstract: The objective of this paper is to study the relationship between a visual stimulus and the amplitude and phase of the alpha wave as a first step to investigating a change in the background wave after a sensory stimulus and an evoked potential. We examined the effect of a single visual stimulus on the amplitude and phase of alpha waves using the complex demodulation method. The visual stimuli were generated by an LED mounted in goggles with the eyes-closed condition. The amplitude of the alpha wave decreased gradually after the stimulus, until it reached a minimum at around 300 ms after the stimulus. The alpha wave continued to increase, showing some rebound, and returning again to the pre-stimulus level. The phase variation after the stimulus tends to be considerably larger than that before the stimulus. Moreover, the average phase returned to the same slope as the pre-stimulus by 2550 ms after the stimulus. The visual stimulus has an effect on the alpha wave until about 2500 ms after the stimulus. The phase variation difference before and after stimulus is significant from 112 ms to 678 ms after the stimulus. This finding suggests there is a partially pararell time course between the change in VEPs plus ERP complex and the alpha wave.
URL: https://global.ieice.org/en_transactions/information/10.1587/e86-d_11_2444/_p
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@ARTICLE{e86-d_11_2444,
author={Tadanori FUKAMI, Kazuhito HAYASHI, Takamasa SHIMADA, Takao AKATSUKA, Yoichi SAITO, },
journal={IEICE TRANSACTIONS on Information},
title={Influence of Visual Stimulus on Amplitude and Phase of Alpha Wave as Measured by Multi-Channel EEG},
year={2003},
volume={E86-D},
number={11},
pages={2444-2451},
abstract={The objective of this paper is to study the relationship between a visual stimulus and the amplitude and phase of the alpha wave as a first step to investigating a change in the background wave after a sensory stimulus and an evoked potential. We examined the effect of a single visual stimulus on the amplitude and phase of alpha waves using the complex demodulation method. The visual stimuli were generated by an LED mounted in goggles with the eyes-closed condition. The amplitude of the alpha wave decreased gradually after the stimulus, until it reached a minimum at around 300 ms after the stimulus. The alpha wave continued to increase, showing some rebound, and returning again to the pre-stimulus level. The phase variation after the stimulus tends to be considerably larger than that before the stimulus. Moreover, the average phase returned to the same slope as the pre-stimulus by 2550 ms after the stimulus. The visual stimulus has an effect on the alpha wave until about 2500 ms after the stimulus. The phase variation difference before and after stimulus is significant from 112 ms to 678 ms after the stimulus. This finding suggests there is a partially pararell time course between the change in VEPs plus ERP complex and the alpha wave.},
keywords={},
doi={},
ISSN={},
month={November},}
Copy
TY - JOUR
TI - Influence of Visual Stimulus on Amplitude and Phase of Alpha Wave as Measured by Multi-Channel EEG
T2 - IEICE TRANSACTIONS on Information
SP - 2444
EP - 2451
AU - Tadanori FUKAMI
AU - Kazuhito HAYASHI
AU - Takamasa SHIMADA
AU - Takao AKATSUKA
AU - Yoichi SAITO
PY - 2003
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E86-D
IS - 11
JA - IEICE TRANSACTIONS on Information
Y1 - November 2003
AB - The objective of this paper is to study the relationship between a visual stimulus and the amplitude and phase of the alpha wave as a first step to investigating a change in the background wave after a sensory stimulus and an evoked potential. We examined the effect of a single visual stimulus on the amplitude and phase of alpha waves using the complex demodulation method. The visual stimuli were generated by an LED mounted in goggles with the eyes-closed condition. The amplitude of the alpha wave decreased gradually after the stimulus, until it reached a minimum at around 300 ms after the stimulus. The alpha wave continued to increase, showing some rebound, and returning again to the pre-stimulus level. The phase variation after the stimulus tends to be considerably larger than that before the stimulus. Moreover, the average phase returned to the same slope as the pre-stimulus by 2550 ms after the stimulus. The visual stimulus has an effect on the alpha wave until about 2500 ms after the stimulus. The phase variation difference before and after stimulus is significant from 112 ms to 678 ms after the stimulus. This finding suggests there is a partially pararell time course between the change in VEPs plus ERP complex and the alpha wave.
ER -
English
