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binaural beats

Lorenza S Colzato, Laura Steenbergen, Roberta Sellaro
Binaural beats represent the auditory experience of an oscillating sound that occurs when two sounds with neighboring frequencies are presented to one's left and right ear separately. Binaural beats have been shown to impact information processing via their putative role in increasing neural synchronization. Recent studies of feature-repetition effects demonstrated interactions between perceptual features and action-related features: repeating only some, but not all features of a perception-action episode hinders performance...
April 13, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
B K Isik, A Esen, B Büyükerkmen, A Kilinç, D Menziletoglu
Binaural beats are an auditory illusion perceived when two different pure-tone sine waves are presented one to each ear at a steady intensity and frequency. We evaluated their effectiveness in reducing preoperative anxiety in dentistry. Sixty patients (30 in each group) who were to have impacted third molars removed were studied (experimental group: 20 women and 10 men, mean (range) age 24 (18-35) years, and control group: 22 women and 8 men, mean (range) age 28 (15-47) years). All patients were fully informed about the operation preoperatively, and their anxiety recorded on a visual analogue scale (VAS)...
March 18, 2017: British Journal of Oral & Maxillofacial Surgery
Swee Wu Phneah, Humaira Nisar
The aim of this paper is to develop a preliminary neurofeedback system to improve the mood of the subjects using audio signals by enhancing their alpha brainwaves. Assessment of the effect of music on the human subjects is performed using three methods; subjective assessment of mood with the help of a questionnaire, the effect on brain by analysing EEG signals, and the effect on body by physiological assessment. In this study, two experiments have been designed. The first experiment was to determine the short-term effect of music on soothing human subjects, whereas the second experiment was to determine its long-term effect...
March 13, 2017: Australasian Physical & Engineering Sciences in Medicine
Christine Beauchene, Nicole Abaid, Rosalyn Moran, Rachel A Diana, Alexander Leonessa
OBJECTIVE: Synchronization in activated regions of cortical networks affect the brain's frequency response, which has been associated with a wide range of states and abilities, including memory. A non-invasive method for manipulating cortical synchronization is binaural beats. Binaural beats take advantage of the brain's response to two pure tones, delivered independently to each ear, when those tones have a small frequency mismatch. The mismatch between the tones is interpreted as a beat frequency, which may act to synchronize cortical oscillations...
April 2017: Journal of Neural Engineering
Christine Beauchene, Nicole Abaid, Rosalyn Moran, Rachel A Diana, Alexander Leonessa
Binaural beats utilize a phenomenon that occurs within the cortex when two different frequencies are presented separately to each ear. This procedure produces a third phantom binaural beat, whose frequency is equal to the difference of the two presented tones and which can be manipulated for non-invasive brain stimulation. The effects of binaural beats on working memory, the system in control of temporary retention and online organization of thoughts for successful goal directed behavior, have not been well studied...
2016: PloS One
K Ecsy, A K P Jones, C A Brown
BACKGROUND: Alpha power is believed to have an inverse relationship with the perception of pain. Increasing alpha power through an external stimulus may, therefore, induce an analgesic effect. Here, we attempt to modulate the perception of a moderately painful acute laser stimulus by separately entraining three frequencies across the alpha band: 8, 10 and 12 Hz. METHODS: Participants were exposed to either visual or auditory stimulation at three frequencies in the alpha-band range and a control frequency...
March 2017: European Journal of Pain: EJP
D Wiwatwongwana, P Vichitvejpaisal, L Thaikruea, J Klaphajone, A Tantong, A Wiwatwongwana
PurposeTo investigate the anxiolytic effects of binaural beat embedded audio in patients undergoing cataract surgery under local anesthesia.MethodsThis prospective RCT included 141 patients undergoing cataract surgery under local anesthesia. The patients were randomized into three groups; the Binaural beat music group (BB), the plain music intervention group (MI), and a control group (ear phones with no music). Blood pressure (BP) and heart rate were measured on admission, at the beginning of and 20 min after the start of the operation...
November 2016: Eye
Bernhard Hommel, Roberta Sellaro, Rico Fischer, Saskia Borg, Lorenza S Colzato
Increasing evidence suggests that cognitive-control processes can be configured to optimize either persistence of information processing (by amplifying competition between decision-making alternatives and top-down biasing of this competition) or flexibility (by dampening competition and biasing). We investigated whether high-frequency binaural beats, an auditory illusion suspected to act as a cognitive enhancer, have an impact on cognitive-control configuration. We hypothesized that binaural beats in the gamma range bias the cognitive-control style toward flexibility, which in turn should increase the crosstalk between tasks in a dual-task paradigm...
2016: Frontiers in Psychology
Jesko L Verhey, Björn Lübken, Steven van de Par
Object binding cues such as binaural and across-frequency modulation cues are likely to be used by the auditory system to separate sounds from different sources in complex auditory scenes. The present study investigates the interaction of these cues in a binaural masking pattern paradigm where a sinusoidal target is masked by a narrowband noise. It was hypothesised that beating between signal and masker may contribute to signal detection when signal and masker do not spectrally overlap but that this cue could not be used in combination with interaural cues...
2016: Advances in Experimental Medicine and Biology
Donna D Zampi
CONTEXT: According to the National Institutes of Health, in 2011, chronic pain affected from approximately 10% to >50% of the adult population in the United States, with a cost of $61 billion to US businesses annually. OBJECTIVE: The pilot study assessed the effects that an external, audio, neural stimulus of theta binaural beats (TBB) had on returning the brain neurosignature for chronic pain to homeostasis. METHODS: The quantitative, experimental, repeated-measures crossover study compared the results of 2 interventions in 2 time-order sequences...
January 2016: Alternative Therapies in Health and Medicine
Traisak Yamsa-Ard, Yodchanan Wongsawat
Traditional buddhist meditation method maybe easy for someone with high experience. However, for the beginner, it is very difficult to keep mental concentration with the tradition way for more than 5 minutes. This research aims to observe effect of the new method for meditation in various analysis methods. A piano music mixed with a 5 Hz (theta band enhancement) binaural beat frequency was used to modulate the brain signals continuously for 7 days. Male of the average age of 33.5±3.84 and female of the average age of 28...
2015: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Nantawachara Jirakittayakorn, Yodchanan Wongsawat
Beat phenomenon is occurred when two slightly different frequency waves interfere each other. The beat can also occur in the brain by providing two slightly different frequency waves separately each ear. This is called binaural beat. The brain responses to binaural beat are in discussion process whether the brain side and the brain area. Therefore, this study aims to figure out the brain responses to binaural beat by providing different binaural beat frequencies on 250 carrier tone continuously for 30 minutes to participants and using quantitative electroencephalography (QEEG) to interpret the data...
August 2015: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Lorenza S Colzato, Hayley Barone, Roberta Sellaro, Bernhard Hommel
A recent study showed that binaural beats have an impact on the efficiency of allocating attention over time. We were interested to see whether this impact affects attentional focusing or, even further, the top-down control over irrelevant information. Healthy adults listened to gamma-frequency (40 Hz) binaural beats, which are assumed to increase attentional concentration, or a constant tone of 340 Hz (control condition) for 3 min before and during a global-local task. While the size of the congruency effect (indicating the failure to suppress task-irrelevant information) was unaffected by the binaural beats, the global-precedence effect (reflecting attentional focusing) was considerably smaller after gamma-frequency binaural beats than after the control condition...
January 2017: Psychological Research
Marco Solcà, Anaïs Mottaz, Adrian G Guggisberg
Binaural beats (BBs) are an auditory illusion occurring when two tones of slightly different frequency are presented separately to each ear. BBs have been suggested to alter physiological and cognitive processes through synchronization of the brain hemispheres. To test this, we recorded electroencephalograms (EEG) at rest and while participants listened to BBs or a monaural control condition during which both tones were presented to both ears. We calculated for each condition the interhemispheric coherence, which expressed the synchrony between neural oscillations of both hemispheres...
February 2016: Hearing Research
Elżbieta Galińska
The neurologic music therapy is a new scope of music therapy. Its techniques deal with dysfunctions resulting from diseases of the human nervous system. Music can be used as an alternative modality to access functions unavailable through non-musical stimulus. Processes in the brain activated by the influence of music can be generalized and transferred to non-musical functions. Therefore, in clinical practice, the translation of non-musical therapeutic exercises into analogous, isomorphic musical exercises is performed...
2015: Psychiatria Polska
Wernher Friedrich, Shengzhi Du, Karlien Balt
BACKGROUND: The temporal lobe in conjunction with the hippocampus is responsible for memory processing. The gamma wave is involved with this process. To develop a human brain protocol, a better understanding of the relationship between gamma and long-term memory is vital. OBJECTIVE: A more comprehensive understanding of the human brain and specific analogue waves it uses will support the development of a human brain protocol. METHODS: Fifty-eight participants aged between 6 and 60 years participated in long-term memory experiments...
2015: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
Claude Baumann, Chris Rogers, Francis Massen
This work develops the mathematical model for a steerable binaural system that determines the instantaneous direction of a sound source in space. The model combines system angular speed and interaural time delays (ITDs) in a differential equation, which allows monitoring the change of source position in the binaural reference frame and therefore resolves the confusion about azimuth and elevation. The work includes the analysis of error propagation and presents results from a real-time application that was performed on a digital signal processing device...
August 2015: Journal of the Acoustical Society of America
Susan A Reedijk, Anne Bolders, Lorenza S Colzato, Bernhard Hommel
Enhancing human cognitive performance is a topic that continues to spark scientific interest. Studies into cognitive-enhancement techniques often fail to take inter-individual differences into account, however, which leads to underestimation of the effectiveness of these techniques. The current study investigated the effect of binaural beats, a cognitive-enhancement technique, on attentional control in an attentional blink (AB) task. As predicted from a neurocognitive approach to cognitive control, high-frequency binaural beats eliminated the AB, but only in individuals with low spontaneous eye-blink rates (indicating low striatal dopamine levels)...
2015: Frontiers in Psychiatry
Christos I Ioannou, Ernesto Pereda, Job P Lindsen, Joydeep Bhattacharya
The presentation of two sinusoidal tones, one to each ear, with a slight frequency mismatch yields an auditory illusion of a beating frequency equal to the frequency difference between the two tones; this is known as binaural beat (BB). The effect of brief BB stimulation on scalp EEG is not conclusively demonstrated. Further, no studies have examined the impact of musical training associated with BB stimulation, yet musicians' brains are often associated with enhanced auditory processing. In this study, we analysed EEG brain responses from two groups, musicians and non-musicians, when stimulated by short presentation (1 min) of binaural beats with beat frequency varying from 1 Hz to 48 Hz...
2015: PloS One
Leila Chaieb, Elke Caroline Wilpert, Thomas P Reber, Juergen Fell
Auditory beat stimulation may be a promising new tool for the manipulation of cognitive processes and the modulation of mood states. Here, we aim to review the literature examining the most current applications of auditory beat stimulation and its targets. We give a brief overview of research on auditory steady-state responses and its relationship to auditory beat stimulation (ABS). We have summarized relevant studies investigating the neurophysiological changes related to ABS and how they impact upon the design of appropriate stimulation protocols...
2015: Frontiers in Psychiatry
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