noun
brain activity
Refers to the physiological or cognitive activity of the brain, often used in scientific, medical, or educational contexts.
睡眠中の脳活動を測定する研究が進んでいる。
Research measuring brain activity during sleep is advancing.
神経活動 refers to neural activity in general, including peripheral nerves, whereas 脳活動 is limited to the brain.
Compound of 脳 (のう, 'brain') and 活動 (かつどう, 'activity'). A straightforward Sino-Japanese term.