While it may not be a perfect therapeutic option for treating certain psychological conditions, brainwave entrainment is yet another tool that warrants further testing and exploration. There is clear evidence that certain protocols may benefit human performance. Unfortunately nearly all of the research has been conducted by those who clearly are affiliated with those who manufacture brainwave entrainment products.

Proceedings of the 9th Conference on Interdisciplinary Musicology – CIM14. Berlin, Germany 2014 first group it increases, and for the second decreases. Experimental group did not fall asleep but maintained a relaxation state after the stimulus, while control group achieved unconscious relaxation but the effects did not hold. The STAI “State” indicated that stress increased after the stimulus for control group (see graph A1.2). 14. CONCLUSIONS • Delta (20-200) and theta (20-100) brainwaves are the ones that have greater amplitude (microvolts) in both groups. Results are clearly shown in graphs A1.5 and A1.10. Graph A1.5 Theta Graph A1.10 Delta • Higher frequency EEG waves such as beta waves have less amplitude. This happens because they are not synchronized and have more phase differences in both groups. • An increased alpha parameter is higher in the experimental group, which indicates that they achieved conscious relaxation. In contrast, the control group showed higher delta waves and presented signs of deep sleep during the experiment. Control group also possibly reached REM (Rapid Eye Movement) sleep halfway throughout the stimulus due theta waves presence in the EEG. • Beta waves are higher in the control group from s = 507 to s = 624 because of unexpected sounds in the stimulus (traffic noise appeared in the original recording). • Both stimuli induced relaxation, but it is important to point out that a person can relax without falling asleep. In this way the binaural stimulus worked better. • It is likely that the control group fell asleep with the nature sounds stimuli because lack of stimulation. • Contrary to what we expected, theta binaural waves didn’t induced FFR in experimental group, although they helped to achieve conscious relaxation. • Delta waves were higher in the experimental group during post-experiment measurements. This suggests that relaxation states were maintained with the absence of stimulus. • Presence of Alpha waves was reduced during deep sleep. This evidence is supported by the control group’s Delta values. • In the absence of stimuli, Delta wave values of the control group decreased, which means that relaxation effects did not prevail. • The effectiveness of an anxiolytic may be measured through the relaxation degree during stimulus and whether its effect endured or not. • For further evaluation of coherence [17] between brainwaves in both hemispheres and the ERP, the use of a 10-20 EEG system is recommended. • Post-experimental STAI “State” tests results are lower in the experimental group. This means that Theta binaural waves were a better anxiolytic than the stimuli (nature sounds) used in the control group. REFERENCES [1] Huang, T., & Charyton, C. (2008). A Comprehensive Review of The Psychological Effects of Brainwave Entrainment. Alternative Therapies in Health and Medicine, 14(5). [2] Berger H. (1929) Über Das Elektrenkephalogramm Des Menschen. Arch Psychiatrie Nervenkrankheiten. [3] Chatrian GE, Petersen MC, Lazarte JA. (1960) Responses to clicks from the human brain: some depth electrographic observations. Electroenceph. Clin. Neurophysiol.. [4] Ulam, Frederick A. (1991) An Investigation of the effects of binaural beat frequencies on human brain waves. California School Of Professional Psychology. [5] Notimex. (2013, July 02). México, país con más estrés laboral. El Universal. Retrieved from: http://www.eluniversal.com.mx/ciencia/2013/mexico-pais-mas-estres-laboral-78744.html [6] American Psychological Association (n.d.). Stress: The different kinds of stress. Retrieved from: http://www.apa.org/helpcenter/stress-kinds.aspx [7] R. Padmanabhan, A. J. Hildreth and D. Laws. (2005) A prospective, randomised, experimentalled study examining binaural beat audio and pre-operative anxiety in patients undergoing general anaesthesia for day case surgery. Anaesthesia. 60, 769-773. [8] Loy, Gareth. (2006) Musimathics. London, England: MIT Press. [9] Atwater, F. Holmes. (2009) Frequency Following Response Study. The Monroe Institute. [10] Ferraro, Fernando M., Acuña, Marcelo. (n.d.) Formación Reticular y Fibras de Asociación del Experimental Encefálico. Departamento de anatomia facultad de medicina, UBA. [11]Le Scouarnec, R. P., Poirier, R. M. Owens, J. E., Gauthier, J., Taylor, A. G. and Foresman, P. A. (2001) Use of Binaural beat tapes for treatment on anxiety: a pilot study of tape preference and outcomes. Alternative Therapies in Health and Medicine. [12] Díaz, M. A., & Comeche, M. I. (2004). Beneficios de la relajación. Retrived from: http://www.psicologiadelasalud.es/beneficios_de_la_relajacion.html [13] Gómez García, J. (2003). Efectos de la música trance percusiva y la música trance electrónica en el EEG. Tesis Licenciatura. Psicología. Departamento de Psicología, Escuela de Ciencias Sociales, Universidad de las Américas Puebla. Retrieved from:
Breathe! This recording, combines music and gentle ocean waves – it uses an Alpha/Theta protocol to quickly relieve stress and deeply relax the listener. Additionally, the session acts to train the user to have better control over their own mental states in the future . Can be used with headphones or speakers. Please sample this anxiety relief music here.

Isochronic tones work just the same in delta as they do in alpha, theta and beta and they are widely used in the brainwave entrainment community to help people sleep. Like you, I’ve also seen some websites saying they don’t work in delta, but it’s a bit like the game of Chinese Whispers, where someone makes a comment and then after it gets passed around and shared a lot the message gets distorted and appears to be a fact. I don’t know of any scientific reason why they wouldn’t work in delta. I remember some people talking about this on a brainwave entrainment forum many years ago. They were saying they found isochronic tones a bit too abrupt for using to help them sleep and they preferred binaural beats, as they thought they were a more soothing sound. That was just a personal preference shared by a couple of prominent forum members at the time and some people then took that as a fact for everyone. That’s where I think that belief originated from.
However, yoga and meditation take time to learn and master, and until the student becomes proficient, progress can be slow and frustrating, leading many people to abandon the effort before they see the benefits. Brainwave entrainment has the potential for helping a person enter the relaxing and rejuvenating mind-states brought about by yoga and meditation without the learning curve and time needed for mastering these other techniques. Brainwave entrainment may even facilitate learning other mindfulness methods by helping a person achieve success faster and more reliably. 

“Mini-brains,”  or brain organoids, the latest development in stem cell technology, are organized 3D cell structures made up of different brain cells, which resemble the complexity of the human brain. Human stem cells can be  grown into brain organoids in 40 days, offering neuroscientists an  unprecedented opportunity to more accurately model human brain  development and disease. Until now, scientists had two choices: to study the brains of other mammals and extrapolate similarities with the human brain, or study the cells that make up the brain in a dish, which  although informative, can only tell us so much about how the human brain  works as a whole.

it says the following: “Running a delta sleep session throughout the night is not recommended as it can interrupt the normal sleep cycle”. I’ve been looping pure delta isochronic tones for about 5 days now, and have had quality sleep. Should I continue looping delta or should I let the videos play out without looping them? Will it will harm my health to do loop delta while I sleep?
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Since the beginning of the 21 st century, there has been a great development in different studies related to encephalography and the psychological consequences of binaural audio. The objective of this paper is to analyze the effects of binaural audio as a relaxation method for people that suffer anxiety and stress. The study took place at ITESM, Santa Fe Campus, where twenty participants around 21 years old took part of the study. They were divided into two groups, Experimental and Control. The first one listened to the Theta binaural stimuli and the second one listened to a stimulus with nature sounds (birds and wind). The results show that the experimental group got to conscious relaxation. The control group had an unconscious relaxation (sleep), but when the stimuli stopped they recovered their stress level, for some participants it increased.
With digital upgrades, Berger’s machine is still in use today, known as an electroencephalography machine, or EEG. Berger used his machine to study the brains of psychologically normal and abnormal people and discovered the first brainwave, called the alpha wave and also known as the Berger wave, along with the faster beta wave, which he observed suppressing the alpha wave when subjects opened their closed eyes. 
First of all, thank you for a most remarkable achievement. I have tried products in the past that purported to synchronize meditation-level brain waves — usually overlain by sappy new-age music composed by non-composers — and was invariably disappointed. However, I have been using your Equisync II and Equisync III recordings for a few weeks now and the results are truly astonishing and live up to the claims on your website.
Thanks for making Brain Wave the Top-Selling Brainwave Entrainment App in the App Store! * This update includes support for iOS 6, an optimized UI for iPhone 5, and a new ambient forest background. The app is universal, so you get it across all your devices with one app! Includes optimized UIs for iPhone/iPod Touch, iPhone 5, iPad and support for landscape and portrait orientations.

Deep relaxation is another major benefit resulting from the brains cortical frequency following response while using brainwave entrainment. As the brain tends to mimic the rate of frequency it is exposed to, thus allowing it to enter into that brainwave state, this helps explain why this technology can produce benefits commonly found with meditation.
“Wow, wow, wow! When I coach people, the first thing I do is help them change their state as quickly as possible – and now it’s as easy as using one of the Brain Salon sessions. I can’t wait to share this program with all of my clients – once they use Brain Salon to easily get into a powerful state, then the work I do is going to take them to levels they never imagined possible…”