Alpha neurofeedback improves the maintaining ability of alpha activity

ArticleinNeuroreport 19(3):315-7 · March 2008with13 Reads
DOI: 10.1097/WNR.0b013e3282f4f022 · Source: PubMed
The effects of alpha-neurofeedback (ANF) on electroencephalographic alpha-activity were investigated. Each session consisted of a 2.5-min eye-opened state and 17.5-min of ANF, which was divided into 16 1.25-min bins. Alpha amplitudes were gradually increased as the session was repeated. The maximum value at the start of ANF gradually decreased as time passed, but the slowdown of alpha-activity during each session was decreased as the session was repeated. The correlation between alpha-activity at the end of ANF and at the following session's eye-opened state was highly significant. These results showed that ANF enhances the ability of alpha-activity to maintain itself rather than the increase of alpha-amplitude during intrasession and that the maintained alpha-activity during former training remained until the next session.
    • "The risk of using too few a number of sessions , which could potentially result in an inadequately small effect on theta power, had to be weighed against the risk of too many sessions, which could result in an unacceptably high number of study dropouts. We elected for this proof-of-principle study to provide four sessions of neurofeedback, as this number of sessions has been shown to impact baseline oscillation power (Cho et al., 2008) and seemed more practical for ultimate clinical adoption if an effect was found. We also reasoned that if we obtained at least a weak effect for four neurofeedback sessions on response to hypnotic analgesia, this would support continued research in this area, which could then begin to identify the best dose of neurofeedback for research and clinical work. "
    [Show abstract] [Hide abstract] ABSTRACT: This proof of principle study examined the potential benefits of EEG neurofeedback for increasing responsiveness to self-hypnosis training for chronic pain management. The study comprised 20 individuals with multiple sclerosis (MS) who received 5 sessions of self-hypnosis training1 face-to-face session and 4 prerecorded sessions. Participants were randomly assigned to have the prerecorded sessions preceded by either (a) EEG biofeedback (neurofeedback) training to increase left anterior theta power (NF-HYP) or (b) a relaxation control condition (RLX-HYP). Eighteen participants completed all treatment sessions and assessments. NF-HYP participants reported greater reductions in pain than RLX-HYP participants. The findings provide support for the potential treatment-enhancing effects of neurofeedback on hypnotic analgesia and also suggest that effective hypnosis treatment can be provided very efficiently.
    Full-text · Article · Jan 2016
    • "Since neurofeedback training does not provide explicit instructions as to how the brain activity may be controlled, this ability appears to be acquired not explicitly but rather through implicit learning [6,16]. The link between embodiment and implicit self-regulation in meditation practice has also been suggested, for example through posture and breathing patterns [40]. "
    [Show abstract] [Hide abstract] ABSTRACT: A recent interest in interaction design is towards the development of novel technologies emphasizing the value of mindfulness, monitoring, awareness, and self-regulation for both health and wellbeing. Whereas existing systems have focused mostly on relaxation and awareness of feelings, there has been little exploration on tools supporting the self-regulation of attention during mindfulness sitting meditation. This paper describes the design and initial evaluation of MeditAid, a wearable system integrating electroencephalography (EEG) technology with an adaptive aural entrainment for real time training of mindfulness state. The system identifies different meditative states and provides feedback to support users in deepening their meditation. We report on a study with 16 meditators about the perceived strengths and limitations of the MeditAid system. We demonstrate the benefits of binaural feedback in deepening meditative states, particularly for novice meditators.
    Full-text · Article · Sep 2015
    • "However, in our work, we observed during the experiment that the upper alphabased training is more likely to be affected by eye artefacts than the ratio-based training. Moreover, it is recommended that individual upper alpha based training should be done with eye- closed [14][15][16][17]as upper alpha is suppressed when eyes are open. Thus, the theta/beta-1 ratio training (suppressing individual theta and increasing beta-1) is selected to be used in the training to compare with the results of FD-based neurofeedback training. "
    Full-text · Conference Paper · Sep 2015 · Personal and Ubiquitous Computing
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