Temporal sequence of frequency specific and nonspecific effects of flickering lights upon the occipital electrical activity in man

Yaguchi, Kiyoshi; Iwahara, Shinkuro

doi:10.1016/0006-8993(76)90093-7

Cited by 3 publications

(8 citation statements)

References 6 publications

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“…This has been considered to reflect constitutional features of the EEG (4,6). On the other hand, some authors have found variable components of the reaction in photic driving, which are determined by the current functional state (5,35,37). Such components are probably reflected in the differences between the driving profiles of the two series of stimulation, such as the significant amplitude increase at 18 Hz and the decrease at 12 Hz.…”

Section: Discussionmentioning

confidence: 99%

“…However, it should be taken into account that the driving response may be evident as a clear spectral peak, even without an increase in the spectrum at the stimulation frequency, or its harmonics, when there is a pronounced decrease at the adjacent frequencies. Such a decrease is the manifestation of the orienting component of the reaction to IPS normal for any stimulus (37).…”

Section: Discussionmentioning

confidence: 99%

“…The present study was restricted to the right occipital region, generally considered as representative for the study of visual stimulation (3,20,37). The results of spectral analysis (using the Fast Fourier Transform) were presented in the form of amplitude spectra, i.e., the square root of the power spectrum, with a frequency resolution of 0.5 Hz.…”

Section: Methodsmentioning

confidence: 99%

“…Expressive EEG driving responses are very often recorded not only at the frequency of IPS (to be called the fundamental or first harmonic) but also at higher harmonics (integer multiples of the fundamental frequency) (3,(35)(36)(37). In experiments with animals and humans, it was shown that such harmonics are not just an artificial result of Fast Fourier Transform, but reflect real physiological reactions (36).…”

Section: Introductionmentioning

confidence: 99%

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Photic driving in the electroencephalogram of children and adolescents: harmonic structure and relation to the resting state

Лазарев

Simpson

Schubsky

et al. 2001

Braz J Med Biol Res

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In order to identify latent bioelectrical oscillators, 15 normal subjects (aged 9-17 years, 8 males, 7 females) were subjected to intermittent photic stimulation. The EEG amplitude spectra corresponding to the 11 fixed frequencies of stimulation presented (3-24 Hz) were combined to form "profiles" of the driving reaction in the right occipital area. The driving response varied with frequency, and was demonstrable in 70-100% of cases (using as criterion peak amplitudes 20% larger than those of the neighbors). The strongest responses were observed at the frequency closest to the alpha peak of the resting EEG. A secondary profile maximum was in the theta band. In 10 subjects, this maximum exceeded half the alpha peak (with an average of 72.4% of the alpha peak), while in the resting spectra, theta amplitudes were much lower than the alpha maxima. This responsiveness in theta activity seems to be characteristic of prepubertal and pubertal subjects. The profiles and resting EEG spectra showed a highly significant Pearson's correlation, with the peak in the theta band of the profiles being the main difference observed between them. The correlation coefficient was significantly correlated with the ratio of the maxima in the theta and alpha bands (R = -0.77, P<0.001). The correlation coefficient between profile and resting spectrum may be a useful indicator in screening methods used to reveal latent cerebral oscillators. Profiles for the second and third harmonics were correlated with those of the first harmonic (fundamental frequency), when considering the corresponding EEG frequencies. Peak frequencies in all three profiles were close to those of the individual's background alpha rhythm, and peak amplitudes in higher harmonics were not much lower than those of the fundamental frequency (mean values of 84 and 63%, for second and third harmonics, respectively).

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Photic driving in the electroencephalogram of children and adolescents: harmonic structure and relation to the resting state

Лазарев

Simpson

Schubsky

et al. 2001

Braz J Med Biol Res

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“…The aforementioned results were described for the right occipital region (3) generally considered representative for the study of the EEG effects of visual stimulation (4)(5)(6). However, there is much supporting evidence in the literature for the thesis that the driving response may be observed in other cortical regions as well.…”

Section: Introductionmentioning

confidence: 95%

Topographic aspects of photic driving in the electroencephalogram of children and adolescents

Лазарев

Infantosi

Valencio-de-Campos

et al. 2004

Braz J Med Biol Res

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The electroencephalogram amplitude spectra at 11 fixed frequencies of intermittent photic stimulation of 3 to 24 Hz were combined into driving "profiles" for 14 scalp points in 8 male and 7 female normal subjects aged 9 to 17 years. The driving response varied over frequency and was detected in 70 to 100% of cases in the occipital areas (maximum) and in 27 to 77% of cases in the frontal areas (minimum) using as a criterion peak amplitude 20% higher than those of the neighbors. Each subject responded, on average, to 9.7 ± 1.15 intermittent photic stimulation frequencies in the right occipital area and to 6.8 ± 1.97 frequencies in the right frontal area. Most of the driving responses (in relation to the previous background) were significant according to the spectral F-test (α = 0.05), which also detected changes in some cases of low amplitude responses not revealed by the peak criterion. The profiles had two maxima in the alpha and theta bands in all leads. The latter was not present in the background spectra in the posterior areas and was less pronounced in the anterior ones. The weight of the profile theta maximum increased towards the frontal areas where the two maxima were similar, while the profile amplitudes decreased. The profiles repeated the shape of the background spectra, except for the theta band. The interhemispheric correlation between profiles was high. The theta driving detected in all areas recorded suggests a generalized influence of the theta generators in prepubertal and pubertal subjects.

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Stability of resonance EEG reactions to flickering light in humans

Федотчев

Bondar

Konovalov

1990

International Journal of Psychophysiology

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Temporal sequence of frequency specific and nonspecific effects of flickering lights upon the occipital electrical activity in man

Cited by 3 publications

References 6 publications

Photic driving in the electroencephalogram of children and adolescents: harmonic structure and relation to the resting state

Photic driving in the electroencephalogram of children and adolescents: harmonic structure and relation to the resting state

Topographic aspects of photic driving in the electroencephalogram of children and adolescents

Stability of resonance EEG reactions to flickering light in humans

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