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Updated: Jul 24, 2025
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Modeling the Functional Network for Spatial Navigation in the Human Brain
Published on: October 13, 2023
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Strategy dependent recruitment of distributed cortical circuits during spatial navigation
Daniel Surinach1, Mathew L Rynes2, Kapil Saxena1
1Department of Mechanical Engineering, University of Minnesota, Twin Cities.
Research Square
|July 3, 2023
Summary
Brain activity shifts rapidly during spatial navigation. Distinct cortical activation patterns emerge as mice learn new environments, differentiating search strategies.
Area of Science:
- Neuroscience
- Cognitive Science
Background:
- Understanding how the brain coordinates cortical activity during spatial navigation in novel environments is crucial.
- The dynamic changes in neural coordination as environments become familiar remain largely unknown.
Approach:
- Mesoscale calcium imaging recorded dorsal cortex activity in mice navigating the Barnes maze.
- A clustering algorithm identified 7 distinct cortical activation states from the calcium dynamics.
- Analysis focused on differentiating neural patterns associated with random, serial, and spatial search strategies.
Key Points:
- Cortical dynamics showed rapid, sub-second shifts between distinct activation patterns.
- Frontal cortex activation (>1s) occurred during serial and spatial search strategies, specifically when mice moved from the center.
- Preceding cortical activation sequences differed significantly between serial and spatial search strategies.
Conclusions:
- Cortical activation patterns can differentiate between goal-directed and non-goal-directed spatial navigation.
- Specific temporal sequences of cortical activity precede distinct search strategies, highlighting neural correlates of cognitive flexibility.
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