Reversible Fronto-occipitotemporal Signaling Complements Task Encoding and Switching under Ambiguous Cues.

Area of Science:

• Neuroscience
• Cognitive Science
• Computational Neuroscience

Background:

• Adaptation to environmental changes requires effective information extraction for goal-directed behavior.
• Understanding how behavioral flexibility is maintained when relevant cues are ambiguous is a key challenge.

Purpose of the Study:

• To investigate the neural mechanisms underlying behavioral flexibility in ambiguously changing environments.
• To elucidate the role of brain-wide neural signaling and functional connectivity in task encoding and adaptation.

Main Methods:

• Utilized functional brain mapping with machine learning decoders to analyze neural activity.
• Employed directional functional connectivity analysis to map information flow.
• Investigated neural coding and signaling patterns during ambiguous and explicit behavioral cueing.

Main Results:

• Brain-wide reversible neural signaling supports task encoding and behavioral flexibility under ambiguity.
• Top-down signals from the prefrontal cortex complement attenuated neural coding in distributed cortical regions during ambiguous cueing.
• Bottom-up signals from occipitotemporal regions supplement prefrontal cortex activity during explicit cueing.

Conclusions:

• The fronto-occipitotemporal circuit dynamically orchestrates adaptation through alternating top-down and bottom-up signaling.
• Neural signaling patterns adjust based on the availability and explicitness of environmental information.
• This adaptive mechanism is crucial for navigating an ever-changing world.