Dimitre G Ouzounov, Tianyu Wang, et al.  record spontaneous activity from up to 150 neurons in the hippocampal stratum pyramidale at ~1-mm depth within an intact mouse brain. Using three-photon microscopy at 1,300-nm excitation, the authors of a recently published Nature Methods paper, demonstrated that functional imaging of GCaMP6s-labeled neurons can be achieved beyond … Continue reading 3-photon imaging of mouse brain activity is published in Nature Methods →