Test-retest reliability of a single-channel, wireless EEG system

Rogers, Jeffrey M.; Johnstone, Stuart J.; Aminov, Anna; Donnelly, James F.; Wilson, Peter H.

doi:10.1016/j.ijpsycho.2016.06.006

Cited by 99 publications

(79 citation statements)

References 58 publications

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“…Several studies in the last years demonstrated significant results to use NeuroSky device in various researches . These are dry electrodes that can measure brainwaves millimeters from the scalp and thus can easily be worn over hair.…”

Section: Methodsmentioning

confidence: 99%

EEG rhythms in prefrontal cortex as predictors of anxiety among youth soccer players

Sultanov

İsmailova

2019

Transl Sports Med

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Anxiety is a feeling of agitation and restlessness in response to certain situations. It is a generally unpleasant emotional state manifesting, to a greater or lesser extent, with a triple cognitive, physiological, and behavioral response to stimuli that are perceived as dangerous or threatening. These stimuli are environmental or psychological. 1 There are various forms of anxiety, which includes excessive worrying, a sense of fear, restlessness, overly emotional reaction, or negative thinking. 2 In addition, examining the influence of self-presentational concerns on athlete emotions prior to the initiation of a competitive performance is important because pre-game emotions likely influence actual performance. 3 In competitive sports, anxiety and self-confidence are considered two essential factors affecting the athlete's performance. 4 Moreover, a similar anxiety is seen as an emotion characterized by negative effect that can have a debilitating effect on performance. 5 According to Eysenck, anxiety could therefore have a positive, a negative, or no effect at all upon performance, depending on the individual's level of anxiety and the attentional demands of the performance task. Together, the degree to which pre-competitive anxiety influences athlete's performance is largely dependent upon the interaction of the athlete's uniqueness (temperament) and the competition situation. 6 A theory of competitive anxiety 7 suggests that sport competition is an evaluative process, which creates some kind of uncertainty about the outcome before the actual competition has occurred. The greater is uncertainty concerning the result of competition and the importance of the competition, the greater is threat. This perception of the threat The study explores the oscillations of EEG rhythms at rest in eyes-open and eyesclosed conditions in relationship to the competitive anxiety. Youth soccer players (n = 16) were the participants of the study. To assess anxiety state, participants completed the Sport Competition Anxiety Test. The EEG was recorded using singlechannel mobile EEG system on the prefrontal cortex. Regression model was used to analyze EEG rhythms as predictor of anxiety by cross-sectional study. Regression analyses revealed that the indicator of eyes-open condition based on delta rhythm is the predictor with positive slope to the prediction of the level of competitive anxiety (P ≤ 0.01). The indicator of eyes-closed condition based on theta rhythm is the predictor with negative slope to the prediction of the level of competitive anxiety (P ≤ 0.03). The findings are interpreted to suggest that delta and theta rhythms are a plausible neurobiological index of anxiety and can distinguish anxiety in sport competition. A slow EEG oscillation predicts formation of competitive anxiety in soccer players and appears to reflect the mechanism of the defensive inhibition in prefrontal cortex to competitive anxiety. Application of the portable EEG system may provide an efficient and valid predictor of emotional state of soccer playe...

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Section: Methodsmentioning

confidence: 99%

EEG rhythms in prefrontal cortex as predictors of anxiety among youth soccer players

Sultanov

İsmailova

2019

Transl Sports Med

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“…(2009) suggest that the NeuroSky's MindSet provides accurate readings regarding attention, since there is a positive correlation between measured and selfreported attention levels. Another team of researchers (Rogers at al., 2016) evaluated the reliability of such single-channel, wireless EEG portable system using test-retest and reliable change analyses. They concluded, that a portable device may provide a viable alternative to conventional lab-based recording systems for assessing changes in electrophysiological signals, and further application to the study of brain function using the system can be encouraged.…”

Section: Methodsmentioning

confidence: 99%

Towards understanding the differences between reading on paper and screen

Gudinavičius

2016

libellarium

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Non-intrusive experimentation and measurements can be obtained from the latest neuroscience scanning techniques and technologies. Such technologies are now quite affordable and could possibly be used for the reading process research in information and communication sciences. The research experiment focuses on measuring the changes in attention while reading the text on different media (devices). The pilot experiment showed that cheap and easy to use brainwave measuring devices can be used for testing reading processes by measuring attention (concentration). The results revealed that a reading medium (device) affects the level of attention and suggested that less attention is needed to read from paper compared to any size or type of screen. Reading books (in a foreign language) can mostly be considered neutral on the attention level scale (slightly shifted towards 53 on a 1-100 scale).

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“…A previous validation study demonstrated that data derived from a single channel, the wireless system (NeuroSky Mind-Wave) is comparable to EEG recorded from conventional labbased equipment. However, critical open issues (e.g., real-time, quality of recordings) remain yet unexplored [3]. One of the unexplored aspects is the electrode placement, which in most EEG devices is fixed depending on the targeted application/s.…”

Section: Introductionmentioning

confidence: 99%

“…However, the conditions are not directly comparable because the first device uses wetelectrodes while the second one uses dry electrodes. It is well 2 14 128 Hz Wet EMOTIV Insight 3 5 128 Hz Dry Muse 4 5 256 Hz Dry Neurosky MindWave 5 1 512 Hz Dry known that wet electrodes have problems for real-time/longterm use. Most EEG devices available in the market were tailored designed for a set of tasks and neuro-paradigms and in general, they are found to be reliable only within those tasks and neuroparadigms.…”

Section: Introductionmentioning

confidence: 99%

Sex differences observed in a study of EEG of linguistic activity and resting-state: Exploring optimal EEG channel configurations

Moctezuma

Molinas

2019

2019 7th International Winter Conference on Brain-Computer Interface (BCI)

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This study reports the differences observed in the EEG signals of linguistic activity and resting-state between male and female subjects in a population of 16 individuals (8 females and 8 males). These differences were spotted while performing two experiments: sex identification and subject identification, where the initial aim was to identify the optimal number and placement of EEG channels to obtain high accuracies in sex and subject identification. The results of the identification show that the signals analyzed contain sex-specific information and that the best features from this sex-specific information are extracted from different EEG channel locations and from different hemispheres of the brain, for either sex. The effect of the number of electrodes and electrode localization is seen with clear differences between male and female subjects. The accuracy loss for sex identification when reducing the number of channels from 14 to 1 was of only 0.03 points during resting states (Accuracies from 0.79 to 0.76). For subject identification within either male or female groups during resting states, the accuracy loss was larger when reducing the number of channels from 14 to 1 (0.96 to 0.71 for female, 0.96 to 0.81 for male subjects). One finding of this study is that Theta and Gamma bands are strongest for males in the right hemisphere during resting states, whereas during linguistic activity these bands exhibit similar strengths in the left hemisphere for both males and females. Similar specific features in brain signals may enable the design of a flexible EEG device that can be adapted to specific mental tasks and Subject settings.

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Test-retest reliability of a single-channel, wireless EEG system

Cited by 99 publications

References 58 publications

EEG rhythms in prefrontal cortex as predictors of anxiety among youth soccer players

EEG rhythms in prefrontal cortex as predictors of anxiety among youth soccer players

Towards understanding the differences between reading on paper and screen

Sex differences observed in a study of EEG of linguistic activity and resting-state: Exploring optimal EEG channel configurations

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