Kilohertz two-photon brain imaging in awake mice.

ABSTRACT: Two-photon microscopy is a mainstay technique for imaging in scattering media and normally provides frame-acquisition rates of ~10-30 Hz. To track high-speed phenomena, we created a two-photon microscope with 400 illumination beams that collectively sample 95,000-211,000 µm² areas at rates up to 1 kHz. Using this microscope, we visualized microcirculatory flow, fast venous constrictions and neuronal Ca²⁺ spiking with millisecond-scale timing resolution in the brains of awake mice.

SUBMITTER: Zhang T 

PROVIDER: S-EPMC9438750 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature