Thermal biofeedback for primary Raynaud's phenomenon: a review of the literature.

University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, New Jersey, USA.
Applied Psychophysiology and Biofeedback (Impact Factor: 1.13). 10/2006; 31(3):203-16. DOI: 10.1007/s10484-006-9018-2
Source: PubMed

ABSTRACT The clinical presentation of primary Raynaud's phenomenon (RP) derives from various pathogenic triggers. The use of thermal biofeedback (TBF) may be of benefit in reducing the severity and frequency of attacks. This article summarizes the relevant research regarding the pathophysiology of primary RP and mechanism of TBF for RP. Systematic reviews of the efficacy of TBF for RP and treatment guidelines for clinicians are provided. The panel concludes that the level of evidence for TBF efficacy is categorized as Level IV: efficacious. The rationale, based on three randomized controlled trials conducted in independent laboratories, demonstrated "superiority or equivalence" of treatments that include TBF. However, randomly controlled trials (RCT) with positive clinical outcomes tended to be small. A large RCT with negative results did not effectively teach handwarming skills. Procedures for reviewing and rating of the levels of evidence of efficacy of studies was based on the Template for Developing Guidelines for the Evaluation of the Clinical Efficacy of Psychophysiological Interventions developed by the joint task force of the AAPB and the Society for Neuronal Regulation (SNR).

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    ABSTRACT: Neurofeedback or electroencephalographic operant conditioning (EEG-OC) is an EEG biofeedback technique used to train individuals to control or modify their cortical activity through learned self-regulation. Initially used for treating a variety of pathologies, neurofeedback has been employed more recently to improve the physical or cognitive performance of human beings. The purpose of this study is to assess the hypothesis of the effect of neurofeedback (the 'awakened mind' model) on the memory performance of subjects aged over 65. 30 partici-pants were shared equally between 3 groups: an experimental group that underwent 4 neurofeedback training sessions; a non-neurofeedback group trained at relaxation; and a 'waiting list' control group. Results showed that the members of the Neurofeedback group learned to increase the spectral power of the alpha frequency range as well as the alpha/thêta ratio, and that compared with the members of the two other groups, neurofeed-back training resulted in a more pronounced decrease, albeit without any relation to changes in EEG activity and the level of stress and anxiety of participants undergoing such training. Yet contrary to expectations, no im-provement of memory performance (differed recall of words and learning of lists of words) was observed. These mixed results, which suggest a wide range of applications, underline the need for a more systematic assessment of the potential applications of NFB training in elderly humans in order to be better able to specify the effects of the retained protocol on cognitive performance.
    Psychology 01/2011; 02(08). DOI:10.4236/psych.2011.28129
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    ABSTRACT: This paper compares the outcomes of thermal biofeedback based on a cellular phone with the outcomes of thermal biofeedback using a PC. Thermal biofeedback has been reported to be useful to decrease stress and anxiety and improve the condition of other disorders such as diabetes, pain, and hypertension. This technique of biofeedback is based on trying to increase temperature of the extremities by means of mental processes by trial and error. The raise in temperature is produced by a higher blood circulation. A comparison on the increase of temperature using biofeedback on PC and a cellular phone is done. Questionnaires for acceptance of technology and stress were applied to develop the interface of thermal biofeedback on the cellular phone. The information of the physiological signals of the user or feedback can be a numerical value of the variable, a video or music. It was found that the users preferred as feedback a numerical display of the temperature as it changes slowly. The outcomes of the increase of the temperature are similar with the mobile and the PC. This study suggests that thermal biofeedback is feasible to be implemented on mobile devices for therapeutic applications.
    Computer Applications and Industrial Electronics (ISCAIE), 2012 IEEE Symposium on; 01/2012
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    ABSTRACT: Objective: The aim of present research is to investigate the effects of Neurofeedback on Cognitive Function with emphasis on Memory. Method: This study is an experimental study. For this reason using a stratified sampling procedure sample of 30 subjects in 2 groups of experimental and placebo was selected. Investigated Subjects were assessed with the Wechsler Memory Scale in two stages (pretest and post-test). Data were analyzed through covariance. Results: The results revealed that after 30 sessions of neurofeedback training, the experimental groups" improved in general memory. The two groups had significant differences in memory. Discussion: we can say neurofeedback control brainwave then increase total memory such as visual memory. Effects of Neurofeedback on Cognitive Function with Emphasis on Memory Neurofeedback training is based on the principle of operant conditioning and involves informing the subject in real time about the workings of their organism in order to incite them to modify their behavior. The term "biofeedback" is used when the information provided concerns physiological parameters such as body temperature, breathing rhythm and heart rate. Biofeedback has been used for treating migraines (Nestoriuc & Martin, 2007), Raynaud"s disease (Karavidas, Tsai, Yucha, McGrady, & Lehrer, 2006) urinary incontinence (Glazer & Laine, 2006). Neurofeedback training (NFB) or electroencephalographic biofeedback (EEG) involves providing the subject in real time with information relating to the rhythmic cortical electrical activities that reflect the electrical activity of specific cortical areas and functions (Evans & Abarbanel, 1999; Masterpasqua & Healey, 2003). The aim of NFB is to enable the subject to become aware of particular patterns of cortical activity that we know or assume to be associated with a more (Juhel, 2011). The conceptualization of NFB as an agent of cognitive change is essentially based on the correlations observed between certain EEG frequency bands and various aspects of information processing Sauseng & Klimesch, 2008). For example, theta activity appears to be related to working memory processes and episodic memory. It was studied the effects of two different NFB training modalities on the performance of young adults in a memory task involving semantic work (conceptual span paradigm) and in a visual attention task (continuous performance paradigm). The first training condition was a stimulation of theta waves (4 -7 Hz, in connection with working memory) and an inhibition of delta waves (<4 Hz, associated with sleep) and alpha waves (8 -12 Hz, associated with physical relaxation). The second training condition simultaneously included a stimulation of SMR waves (12 -15 Hz, associated with attention) and an inhibition of beta waves (18 -22 Hz, associated with problem-solving, and also sometimes anxiety disorders). For example, theta activity appears to be related to working memory processes and episodic memory. It appears that lower alpha waves are largely associated with attentional processes, while upper alpha waves reflect recovery processes in semantic memory. Beta waves associated with motor activity are also assumed to be involved in the activation of attentional processes. Finally, gamma activity may play a "universal" role in sensory and cognitive

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May 27, 2014