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brain wave

brain wave

35 4.0
A pattern of electrical activity in the brain seen on an EEG
  • noun
  • /breɪn weɪv/
  • Specialized
translation icon : onda cerebral
  • The doctor used an EEG to measure the brain wave activity during the patient's sleep.
  • brain wave pattern
  • brain wave frequency
  • brain wave rate

So your heart rate, your breathing, your hormone secretions, your brain waves, they all get changed by sound.

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Examples

  • We're measuring his brain waves.

  • When you sit down to meditate, your brain waves shift and you enter a deeper level of consciousness.

    Blog text (29)
  • His brain waves are normal.

  • His vital signs are strong, his brain waves are good.

  • What I'm trying to do is create a brain wave pattern.

  • Moreover, the features of the brain waves will be different when compared to when a person is watching television or reading a book.

    Academic text (2010)
  • The brain waves are the product of electrochemical activity in the brain.

    Academic text (1990)
  • We can certainly boost your deep sleep brain waves with brain stimulation.

  • This is a typical brain wave when the brain's awake and you're processing the world.

  • So your heart rate, your breathing, your hormone secretions, your brain waves, they all get changed by sound.

Synonyms

brainwave
vsbrain wave
  • Specialized
7 6.0

A fast change in the brain's electrical signals that a machine can measure

is a broader electrical pattern across the whole brain not only cortical spikes
alpha wave
vsbrain wave
  • Specialized
3 6.4

A brain rhythm you have when you are awake and relaxed, often when you close your eyes or meditate

is a general electrical pattern not limited to that frequency or state
theta wave
vsbrain wave
  • Specialized
2 7.7

A slow, low energy brain rhythm that appears when a person is awake but relaxed or drowsy

is the broader electrical pattern not only this low frequency state
beta wave
vsbrain wave
  • Specialized
1 5.1

A fast brainwave that appears when you are awake and thinking

is the general electrical pattern not confined to that high frequency state
cortical potential
vsbrain wave
  • Specialized
9.1

A quick change in electric signals in the brain's outer part measured by a machine

is the broader electrical activity pattern rather than only voltage spikes

How Fast

beta wave
  • Specialized
1 5.1
brain wave
  • Specialized
35 4.0
alpha wave
  • Specialized
3 6.4
theta wave
  • Specialized
2 7.7
delta wave
  • Specialized
1 7.2

Surface Forms

brain wave singular
brain waves plural

Morphology

brain + wave

The meaning 'a pattern of electrical activity in the brain' is directly compositional from 'brain' (the organ) + 'wave' (a rhythmic pattern or surge), so a learner who knows both words can infer it denotes a wave-like activity in the brain. This formation is common in scientific register and mirrored across many languages (e.g., Spanish onda cerebral), so it is readily predictable to B1 learners despite being somewhat technical.

Etymology

Brain wave comes from the image of tiny electrical signals in the brain moving like a wave across its surface. That's why today it means 'a pattern of electrical signals in the brain' that machines can record.