neurofeedback

noun

neu·​ro·​feed·​back ˌn(y)u̇r-(ˌ)ȯ-ˈfēd-ˌbak 

: the technique of making brain activity perceptible to the senses (as by recording brain waves with an electroencephalograph and presenting them visually or audibly) in order to consciously alter such activity

This is neurofeedback, a kind of biofeedback for the brain, which practitioners say can address a host of neurological ills … by allowing patients to alter their own brain waves through practice and repetition.

—Katherine Ellison, The New York Times

called also neurobiofeedback, neurotherapy