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Proceedings Paper

Miniaturized device for whole cortex mesoscale imaging in freely behaving mice
Author(s): Mathew L. Rynes; Daniel Surinach; Micheal LaRoque; Samantha Linn; Judith Dominguez; Leila Ghanbari; Suhasa B. Kodandaramaiah
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Paper Abstract

The advent of genetically-encoded calcium indicators, along with surgical preparations such as thinned skulls or refractive index matched skulls, have enabled mesoscale cortical activity imaging in headfixed mice. Such imaging studies have revealed complex patterns of coordinated activity across the cortical surface during a variety of behaviors. However, neural activity during free, unrestrained behavior significantly differs from that observed in headfixed animals. The ability to perform mesoscale imaging of the cortex in freely behaving mice may launch new avenues of scientific enquiry. Here we present the ‘Mesoscope’, a miniature, head-mountable imaging device compatible with transparent polymer skulls recently developed by our group. With an 8x10 mm field of view, the Mesoscope can image most of the mouse dorsal cortex and weighs only 3.7 grams. Here, we show preliminary behavioral experiments and mesoscale imaging in anesthetized mice.

Paper Details

Date Published: 21 February 2020
PDF: 6 pages
Proc. SPIE 11226, Neural Imaging and Sensing 2020, 112260G (21 February 2020); doi: 10.1117/12.2550395
Show Author Affiliations
Mathew L. Rynes, Univ. of Minnesota, Twin Cities (United States)
Daniel Surinach, Univ. of Minnesota, Twin Cities (United States)
Micheal LaRoque, Univ. of Minnesota, Twin Cities (United States)
Samantha Linn, Univ. of Minnesota (United States)
Judith Dominguez, Univ. of Minnesota, Twin Cities (United States)
Leila Ghanbari, Univ. of Minnesota, Twin Cities (United States)
Suhasa B. Kodandaramaiah, Univ. of Minnesota, Twin Cities (United States)

Published in SPIE Proceedings Vol. 11226:
Neural Imaging and Sensing 2020
Qingming Luo; Jun Ding; Ling Fu, Editor(s)

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