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Link Brain-Wide Projectome to Neuronal Dynamics in the Mouse Brain.

Xiang Li1,2,3, Yun Du4,5, Jiang-Feng Huang1,2,3

  • 1Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China.

Neuroscience Bulletin
|May 31, 2024
PubMed
Summary
This summary is machine-generated.

Researchers developed new methods to map brain-wide neuronal connections and activity simultaneously, especially in challenging subcortical regions. This breakthrough links neuronal dynamics to the complete projectome, advancing brain connectivity research.

Keywords:
In vivo imagingAO imagingDeep brain regionsfMOST

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Area of Science:

  • Neuroscience
  • Connectomics
  • Systems Neuroscience

Background:

  • Understanding neuronal network function requires knowledge of both neuronal dynamics and the complete brain-wide projectome.
  • Simultaneously acquiring neural activity and projectome data for individual neurons, particularly in subcortical regions, presents a significant technical challenge.

Purpose of the Study:

  • To develop and validate strategies for mapping the brain-wide projectome of functionally relevant neurons in specific brain regions.
  • To establish a method for acquiring both neural dynamics and brain-wide projectome data from molecularly defined neuronal subtypes.
  • To bridge the gap between neuronal dynamics and projectome mapping in subcortical structures.

Main Methods:

  • Integration of in vivo microscopy techniques.
  • Application of high-definition fluorescence micro-optical sectioning tomography.
  • Development of novel strategies for simultaneous neural dynamic and projectome acquisition.

Main Results:

  • Successful mapping of brain-wide projectomes for neurons in the somatosensory cortex, dorsal hippocampus, and substantia nigra pars compacta.
  • Demonstrated feasibility of acquiring neural dynamics and brain-wide projectome data for molecularly defined neuronal subtypes.
  • Established a method to link neuronal dynamics with projectome information for subcortical neurons.

Conclusions:

  • The developed strategies effectively link brain-wide projectome to neuronal dynamics for neurons in subcortical structures.
  • These approaches provide valuable tools for investigating brain functional organization through intricate connectivity patterns.
  • This work advances the understanding of neural circuit function by enabling comprehensive analysis of neuronal connectivity and activity.