Unknown

Dataset Information

0

Recording Neural Activity in Unrestrained Animals with Three-Dimensional Tracking Two-Photon Microscopy.


ABSTRACT: Optical recordings of neural activity in behaving animals can reveal the neural correlates of decision making, but brain motion, which often accompanies behavior, compromises these measurements. Two-photon point-scanning microscopy is especially sensitive to motion artifacts, and two-photon recording of activity has required rigid coupling between the brain and microscope. We developed a two-photon tracking microscope with extremely low-latency (360 ?s) feedback implemented in hardware. This microscope can maintain continuous focus on neurons moving with velocities of 3 mm/s and accelerations of 1 m/s2 both in-plane and axially. We recorded calcium dynamics of motor neurons and inter-neurons in unrestrained freely behaving fruit fly larvae, correlating neural activity with stimulus presentations and behavioral outputs, and we measured light-induced depolarization of a visual interneuron in a moving animal using a genetically encoded voltage indicator. Our technique can be extended to stabilize recordings in a variety of moving substrates.

SUBMITTER: Karagyozov D 

PROVIDER: S-EPMC6287944 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

altmetric image

Publications

Recording Neural Activity in Unrestrained Animals with Three-Dimensional Tracking Two-Photon Microscopy.

Karagyozov Doycho D   Mihovilovic Skanata Mirna M   Lesar Amanda A   Gershow Marc M  

Cell reports 20181001 5


Optical recordings of neural activity in behaving animals can reveal the neural correlates of decision making, but brain motion, which often accompanies behavior, compromises these measurements. Two-photon point-scanning microscopy is especially sensitive to motion artifacts, and two-photon recording of activity has required rigid coupling between the brain and microscope. We developed a two-photon tracking microscope with extremely low-latency (360 μs) feedback implemented in hardware. This mic  ...[more]

Similar Datasets

| S-EPMC5033459 | biostudies-literature
| S-EPMC7205446 | biostudies-literature
| S-EPMC9563101 | biostudies-literature
| S-EPMC2819332 | biostudies-literature
| S-EPMC3799900 | biostudies-literature
| S-EPMC7199528 | biostudies-literature
| S-EPMC6648724 | biostudies-literature
| S-EPMC4573517 | biostudies-literature
| S-EPMC5914290 | biostudies-literature
| S-EPMC5049779 | biostudies-literature