brainactivity
nounUK /ˈbreɪn ækˌtɪvəti/
US /ˈbreɪn ækˌtɪvəti/
Brain activity is the work your brain does when it thinks, feels, or moves your body.
The doctor watched the brain activity on the screen to see how the patient was doing.
OTHER MEANINGS
2. The electrical signals that brain cells send to each other.
Scientists recorded the brain activity while the person slept.
3. The level of mental effort or focus a person is using.
During the test, her brain activity was very high.
4. Changes in the brain that can be measured by machines.
The scan showed increased brain activity in the memory area.