What is brain wave?

Electricity. Nerve cells operate (signal) electrically. On the small scale (e.g. One neuron) electrical activity can be measured with very tiny instruments applied close to the nerve cell, which is invasive. The combined electrical activity of many neurons is recordable with non-invasive means, usually on the scalp, the tracing of which is "the brain wave".

Related Questions

What causes abnomrmal brain waves without epilepsy?

Many entities. Includes prior head and neck trauma, migraine headaches, medication effects, sleep disorders, metabolic influences, chemical imbalances, to name a few. Read more...

What do the brain waves show for someone in a coma? Does it just look like they're sleeping?

Not that way. EEG tracings in coma depending upon the cause, may show diffuse slowing or even relatively waking recordings (in some brainstem strokes). Very useful in also ruling out seizure activity as a cause for decreased responsivity. Read more...

Please offer your opinion: do you think after two months brain wave activity is gone?

Gone in what context. Brain waves are generated by the building blocks of your brain -- the individual cells called neurons. Neurons communicate with each other by electrical changes.We can actually see these electrical changes in the form of brain waves as shown in an eeg. When one dies-brain wave activity ceases. Injuries/seizures, medication, fatigue, emotional distress, pain cause brain wave activity imbalance. Read more...
I hope not. After 2 months of what? Brain waves continue while a person is living, but they can change in form and pattern as dr. Sia eloquently shared with you. If brain wave activity is gone, you would be dead -- and i wish you and your family the best of health. Read more...

Is brain wave therapy safe?

Not sure. Not sure what you mean by "brain wave therapy". Transcranial magnetic stimulation alters brain waves, as does biofeedback and even cognitive behavioral therapy and meditation. Read more...

I am a student at comsumnus high school and I am doing a report on the p300 brain wave could you give me a bit of information?

P300 brain wave. I'm certain if u use google or bing or other search engine, u will find more than adequate information on p300 brain waves. Good luck with your report. Read more...
Depends . . . You do know that you can search the internet directly rather than query someone else in a forum to search the internet, right? Since i had no idea about p300 brain waves, i thought i'd check it out: http://en.Wikipedia.Org/wiki/p300_(neuroscience). Also read http://nationalsecurityzone.Org/site/tag/p300-brain-waves/ and http://www.Redicecreations.Com/article.Php?Id=12639. Good luck! Read more...

I have to have a brain wave test and a sleep study can anyone tell me what to expect and what all they test for?

Many things. Seizures, sleep apnea, periodic limb movements of sleep, how low and high your heart rate goes, how low your oxygen drops, whether you have any bizarre night time sleep behavior and how your sleep stages occur and for how long, how many times a night you wake up or have arousals, what your sleep efficiency is, whether apnea is worse on your back or sides or in rem sleep, abnl heart rhythms.+ more. Read more...

Hi Doctor, I'm one of the patient that suffer in this, I had long term medication - 12 years but EEG scan still shows that my brain wave is abnormal?

Depends. EEG's can be "abnormal" for a variety of reasons, some of which are variants of normal, or caused by medications. Suggest you speak with your neurologist who ordered the EEG in order to determine if there is anything in specific that is being identified as abnormal. Read more...