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17 votes
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Are brain waves electromagnetic waves?

Short answer Brain waves are not electromagnetic waves. Long answer Measured brain activity, as you already mentioned, is the result of individual neurons firing. The activity exists, in fact, of two ...
Robin Kramer-ten Have's user avatar
13 votes
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Why do brains oscillate within specific frequency ranges?

What are brain oscillations? I think it is first important to recognize what brain oscillations refer to: they are small, somewhat localized fluctuations in voltage that are often measured by EEG (...
Bryan Krause's user avatar
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11 votes

Are brain waves electromagnetic waves?

Short answer Brainwaves are typically associated with the electroencephalogram, which is a signal mainly composed of potential differences generated in the superficial layers of the brain. Potential ...
AliceD's user avatar
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10 votes

What do brain waves look like under the influence of psilocybin?

Best start here: The entropic brain: a theory of conscious states informed by neuroimaging research with psychedelic drugs (2014). And then here is some more current literature worth exploring: Neural ...
themorewerealize's user avatar
8 votes

Are brain waves electromagnetic waves?

If "brain waves" produce a time-varying electric potential as shown on the EEG, then as far as I know electromagnetic waves are present. I was taught that you cannot have a time varying electric ...
bobby's user avatar
  • 97
5 votes

Can I read what the person thinking through electrodes or something similar?

I take it you want to use eye movements for data input (rather than reading people's thoughts, which would be silly to consider). It's not the greatest idea, efficiency wise, but may have its ...
got trolled too much this week's user avatar
5 votes

Why do brains oscillate within specific frequency ranges?

I’m interested in this matter too. I’m not an expert on this subject but, as far as I understand, brain oscillations seem to be essential in the functioning together of a large number of neurons: to ...
user287279's user avatar
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4 votes

What exactly are the X and the Y axis of a brainwave?

In the general case of EEG, the x-axis is time, and the y-axis is the voltage potential measured by an electrode placed on the scalp. When others talk about "brain waves" they typically refer to ...
Justas's user avatar
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4 votes

Mind uploading & its constituents: Theoretically possible?

To upload information stored in the mind is to upload information stored in the brain because the brain is the physical part of the mind. To do this is not an easy task because the brain has neither ...
user287279's user avatar
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3 votes

Classification of EEG Signals

BCI has rougly two different approaches to extract features. I will address them both. When EEG is recorded, you can see an pattern of activity in a particular channel over time. This is the time-...
Robin Kramer-ten Have's user avatar
3 votes
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Can binaural beats be generated with carrier tones outside the audible frequency range?

Short answer No, infrasonic or ultrasonic sound cannot generate binaural beats. Background Binaural beats are generated in the brain and are associated with the frequency bands of the EEG. Binaural ...
AliceD's user avatar
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3 votes

Binaural Beats Meditation EEG versus Non-aided mediation EEG

Theta and Alpha are the waves associated with meditation (KaKasamatsu & Hirai, 1966; Khare & Nigam, 2000). Owen and Atwater found that: binaural auditory beats in the EEG alpha frequency ...
queenslug's user avatar
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3 votes
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Does neurodynamics have any relation to psychodynamics?

I believe I can see where the confusion lies when comparing the interesting artwork with psychodynamic theory. The artwork you linked uses Neurological data to form images, whereas you may be getting ...
Chris Rogers's user avatar
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3 votes
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Is there a mindfulness meditation technique that tends to produce gamma rhythms in the brain (and not just the alpha frequencies that are typical)?

It looks like increased gamma activity is pronounced simply for long-term meditation practitioners. Long-term Vipassana meditators sat in meditation vs. a control rest (mind-wandering) state for ...
Wuschelbeutel Kartoffelhuhn's user avatar
3 votes

Can a brain dead person be revived through a modified defribillator?

Brain death is defined as the complete and permanent loss of brain function (1), or complete, irreversible cessation of brain function (2), or irreversible cessation of all functions of the whole ...
user287279's user avatar
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2 votes

Searching for Silva Method papers

James Randi is a famous skeptic who challenges paranormal and pseudoscientific claims. Pseudoscience consists of statements, beliefs, or practices may give the appearance of being scientific, but, are ...
Tony Mobbs's user avatar
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2 votes
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BOLD->functional connectivity->spectral graph theory (e.g. Atasoy 2016) vs BOLD->Fourier Analysis

Interestingly enough, I myself have been reading papers like these for some weeks. Although I think your question does not have a correct answer (since it is a little bit open) I can try to give my ...
JFR's user avatar
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2 votes
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Are brainwaves from an EEG meaningful measurements?

Yes, EEG measurements are meaningful. The "slow" oscillations of sleep, for example, are tied to "UP" and "DOWN" states in neocortical neurons, the UP state being a ...
Bryan Krause's user avatar
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2 votes
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EEGs of 2 individuals really show "...it's literally true — your brain waves are synchronized listening to music." What does this data look like?

When I worked at an audio lab a few years ago, it was explained to me that EEG has sufficient resolution to reconstruct speech (albeit at a low fidelity) heard by the subject. Frequency following ...
Arnon Weinberg's user avatar
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1 vote

Alpha and Beta waves during BCI Training

Here are a few screenshots of what I observed. This is a screenshot of when I put the headset back on and purposely blinked. Noticed this particular shape in the signal repeating every time I did so. ...
rayank97's user avatar
1 vote

Could you inject external gamma waves into your brain safely?

I am fairly certain that the question is not about electromagnetic gamma light radiation, but rather about the gamma frequency brain waves. While we do not "inject gamma waves" we can ...
Good Ol' Saint Nick's user avatar
1 vote

Would an electroencephalogram detect a chip in you brain that is sending signals?

EEG electrodes are designed to record the electrical activity of the brain over the scalp. As @Bryan said the frequency of interest is usually less than 200 Hz, although it is possible to record up to ...
Majid khalili's user avatar
1 vote

Mean brainwave amplitude

I would not recommend phrasing it that way. the brain of a narcoleptic generally operates at a lower mean amplitude than a “normal” brain is very misleading and imprecise, because it suggests the ...
Bryan Krause's user avatar
  • 7,481
1 vote

How can I determine which of Brainwave is dominant as one state by EEG data?

Each "brainwave" is a range of frequencies that make up the signal, usually called a frequency band (ie. "the gamma frequency band"). To determine differences between bands, you would generally look ...
Adam Francey's user avatar
1 vote

How can we know which types of brainwaves is dominated at particular state?

See a previous Q&A: Why do brains oscillate within specific frequency ranges? I think that answer covers much of your question; I'll try to cover the rest here. In short, the names gamma/beta/...
Bryan Krause's user avatar
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1 vote

What exactly are the X and the Y axis of a brainwave?

The EEG (or Local Field Potential - LFP) is the result of currents flowing in and out of every neuron in the brain. As this current flows, a dipole is created which creates an electric field - this is ...
Benjamin Latimer's user avatar
1 vote

Can binaural beats be generated with carrier tones outside the audible frequency range?

No, the carrier frequency for a binaural beat needs to be less than approximately 1500 Hz. The binaural beat arises because when two tones with slightly different frequencies are added, the ...
StrongBad's user avatar
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