Exactly. Though it is used primarily to record activity in experimental animals, rather than to stimulate it, for example: https://www.researchgate.net/figure/

Exactly. Though it is used primarily to record activity in experimental animals, rather than to stimulate it, for example: https://www.researchgate.net/figure/Left-A-PBM-array-on-the-mouse-skull-The-anterio-posterior-axis-of-PBM-array-matches_fig1_49768504 https://www.researchgate.net/figure/Left-A-PBM-array-on-the-...