EEG responses to long-term audio–visual stimulation

Teplan, Michal; Krakovská, Anna; Štolc, Svorad

doi:10.1016/j.ijpsycho.2005.02.005

Cited by 61 publications

(58 citation statements)

References 44 publications

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“…In our previous study, we observed an increase in the alpha and theta powers and an enhanced frontal alpha coherence [10] after two months of audio-visual stimulation training (25 repetitions of 30-minute intervals of relaxation) [11].…”

Section: Introductionmentioning

confidence: 82%

Spectral EEG Features of a Short Psycho-physiological Relaxation

Teplan

Krakovská

Špajdel

2014

Measurement Science Review

100

116

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Short-lasting psycho-physiological relaxation was investigated through an analysis of its bipolar electroencephalographic (EEG) characteristics. In 8 subjects, 6-channel EEG data of 3-minute duration were recorded during 88 relaxation sessions. Time course of spectral EEG features was examined. Alpha powers were decreasing during resting conditions of 3-minute sessions in lying position with eyes closed. This was followed by a decrease of total power in centro-parietal cortex regions and an increase of beta power in fronto-central areas. Represented by EEG coherences the interhemispheric communication between the parieto-occipital regions was enhanced within a frequency range of 2-10 Hz. In order to discern between higher and lower levels of relaxation distinguished according to self-rated satisfaction, EEG features were assessed and discriminating parameters were identified. Successful relaxation was determined mainly by the presence of decreased delta-1 power across the cortex. Potential applications for these findings include the clinical, pharmacological, and stress management fields.

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Section: Introductionmentioning

confidence: 82%

Spectral EEG Features of a Short Psycho-physiological Relaxation

Teplan

Krakovská

Špajdel

2014

Measurement Science Review

100

116

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“…However, others have reported clear changes in the EEG following exposure to higher gamma (40Hz) frequency binaural beats (Grose & Mamo, 2011). In addition, combined audio and visual entrainment techniques have been shown to elicit changes in both the alpha (Moridis et al, 2010;Teplan, Krakovska & Stolc, 2006) and beta (Timmerman, Lubar, Rasey & Frederick, 1999) frequency ranges of the EEG. Such findings suggest a level of cortical flexibility that is evident across all frequency ranges of the EEG and as such it should be possible to elicit entrainment effects in these frequencies.…”

Section: Discussionmentioning

confidence: 99%

Tracking EEG changes in response to alpha and beta binaural beats

Вернон

Peryer

Louch

et al. 2014

International Journal of Psychophysiology

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A binaural beat can be produced by presenting two tones of differing frequency, one to each ear. Such auditory stimulation has been suggested to influence behaviour and cognition via the process of cortical entrainment. However, research so far has only shown frequency following responses in the traditional EEG frequency ranges of delta, theta and gamma.Hence a primary aim of this research was to ascertain whether it would be possible to produce clear changes in the EEG in either the alpha or beta frequency ranges. Such changes, if possible, would have a number of important implications as well as potential applications.A secondary goal was to track any observable changes in EEG throughout the entrainment epoch to gain some insight into the nature of the entrainment effects any changes in an effort to identify more effective entrainment regimes. Twenty two healthy participants were recruited and randomly allocated to one of two groups, each of which was exposed to a distinct binaural beat frequency for ten 1-minute epochs. The first group listened to an alpha binaural beat of 10Hz and the second to a beta binaural beat of 20Hz. EEG was recorded from the left and right temporal regions during pre-exposure baselines, stimulus exposure epochs and post-exposure baselines. Analysis of changes in broad-band and narrow-band amplitude, and frequency showed no effect of either binaural beat frequency eliciting a frequency following effect in the EEG. Possible mediating factors are discussed and a number of recommendations are made regarding future studies, exploring entrainment effects from binaural beat presentation.3

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“…The subjects free of the risk were assigned to the study every day after each athletic training, a 45-min session of audio-visual relaxation was carried out. It consisted in stimulation of the subject with light stimuli (lying position, eyes closed, green light, light intensity adjusted individually to visual sensitivity of the subjects) and auditory stimuli (high-pitched tone; 7-13 Hz, sound intensity adjusted individually to auditory sensitivity of the subjects) with the alpha frequency (7-13 Hz) and autogenic relaxation (Schultz's autogenic training) (Teplan et al 2006;Hashim 2011). According to Shultz (Hashim 2011), this technique can be termed as ''psychical gymnastics''.…”

Section: Audio-visual and Autogenic Relaxationmentioning

confidence: 99%

“…Using the similar training of autogenic relaxation on daily basis Hashim (2011) has shown that reduction in fatigue and stress and improvement in mood in young football players is accompanied by the increase in mean amplitude of alpha band in the occipito-parietal and temporal regions. Similar training was also used in order to reach the internal calmness in the study of opportunities for improvement in wellness of clinical patients (Teplan et al 2006;Marshall and Bentler 1976).…”

Section: Changes In Activity In Alpha Bandmentioning

confidence: 99%

Audio-Visual and Autogenic Relaxation Alter Amplitude of Alpha EEG Band, Causing Improvements in Mental Work Performance in Athletes

Mikicin¹,

Kowalczyk²

2015

Appl Psychophysiol Biofeedback

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The aim of the present study was to investigate the effect of regular audio-visual relaxation combined with Schultz's autogenic training on: (1) the results of behavioral tests that evaluate work performance during burdensome cognitive tasks (Kraepelin test), (2) changes in classical EEG alpha frequency band, neocortex (frontal, temporal, occipital, parietal), hemisphere (left, right) versus condition (only relaxation 7-12 Hz). Both experimental (EG) and age-and skill-matched control group (CG) consisted of eighteen athletes (ten males and eight females). After 7-month training EG demonstrated changes in the amplitude of mean electrical activity of the EEG alpha bend at rest and an improvement was significantly changing and an improvement in almost all components of Kraepelin test. The same examined variables in CG were unchanged following the period without the intervention. Summing up, combining audio-visual relaxation with autogenic training significantly improves athlete's ability to perform a prolonged mental effort. These changes are accompanied by greater amplitude of waves in alpha band in the state of relax. The results suggest usefulness of relaxation techniques during performance of mentally difficult sports tasks (sports based on speed and stamina, sports games, combat sports) and during relax of athletes.

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EEG responses to long-term audio–visual stimulation

Cited by 61 publications

References 44 publications

Spectral EEG Features of a Short Psycho-physiological Relaxation

Spectral EEG Features of a Short Psycho-physiological Relaxation

Tracking EEG changes in response to alpha and beta binaural beats

Audio-Visual and Autogenic Relaxation Alter Amplitude of Alpha EEG Band, Causing Improvements in Mental Work Performance in Athletes

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