Presentation + Paper
25 April 2023 Fast multi-photon brain-wide volumetric imaging and photostimulation
Lapo Turrini, Pietro Ricci, Giuseppe de Vito, Michele Sorelli, Marco Marchetti, Francesco Vanzi, Ludovico Silvestri, Francesco Saverio Pavone
Author Affiliations +
Abstract
The ability to simultaneously detect and control neuronal activity grants the capacity to unravel the causal relationships behind brain processing. Nevertheless, scaling-up this technology to the whole encephalon of a vertebrate is a challenging task, and this impedes reaching a global comprehension of how the brain works. To this aim, we developed an optical system that enables fast noninvasive functional imaging of the whole brain of the zebrafish larva and, at the same time, allows us to optogenetically stimulate the activity of arbitrary sets of neurons in the volume. Our preliminary results show that with this optical system we can both consistently evoke activation of neurons in the stimulation site and identify distantly-located functionally-connected neurons placed downstream in the activated circuits. The expansibility of this concept paves the way for the brain-wide mapping of functional connectivity in the zebrafish larva.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lapo Turrini, Pietro Ricci, Giuseppe de Vito, Michele Sorelli, Marco Marchetti, Francesco Vanzi, Ludovico Silvestri, and Francesco Saverio Pavone "Fast multi-photon brain-wide volumetric imaging and photostimulation", Proc. SPIE 12384, Multiphoton Microscopy in the Biomedical Sciences XXIII, 123840B (25 April 2023); https://doi.org/10.1117/12.2649824
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KEYWORDS
Optogenetics

Photostimulation

Brain

Neurons

Calcium

Neuroimaging

Biological imaging

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