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Forecasting Perception Before It Happens: Context-Specific Connectivity Patterns Predict Perceptual Outcomes.

Parham Mostame1,2, Guido Hesselmann3, Richard Bido-Medina4

  • 1Department of Psychology, University of Illinois at Urbana-Champaign (UIUC), Champaign, IL, USA.

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Summary
This summary is machine-generated.

Brain connectome dynamics predict moment-to-moment behavior. Task-specific brain network patterns, not general ones, shape perception in real-time, demonstrating context-dependent neural control.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Computational Neuroscience

Background:

  • The static functional connectome's link to behavior is known, but real-time brain dynamics and their behavioral relevance are unclear.
  • Behavior fluctuates moment-to-moment, prompting investigation into whether these shifts relate to task-specific or task-general neural processes.

Purpose of the Study:

  • To investigate if dynamic functional connectome states predict moment-to-moment behavioral outcomes across different tasks.
  • To determine if task-specific or task-general neural processes underlie these dynamic predictions.

Main Methods:

  • Analysis of functional magnetic resonance imaging (fMRI) data from 35 healthy participants performing three distinct ambiguous perception tasks.
  • Utilized Support Vector Machine (SVM) models to assess how pre-stimulus functional connectome states predicted subsequent perception on a trial-by-trial basis.
  • Examined brain activity during long inter-stimulus intervals to capture pre-stimulus connectome states.

Main Results:

  • Pre-stimulus functional connectome states reliably predicted upcoming perceptual outcomes.
  • Distinct, non-overlapping sets of task-specific connections supported predictions within each task, involving sensory and cognitive control networks.
  • Partial overlap in predictive connections was observed only when aggregated across intrinsic connectivity networks (ICNs).

Conclusions:

  • Ongoing functional connectome dynamics significantly impact moment-to-moment behavior.
  • The influence of brain connectome dynamics on behavior is predominantly context-dependent, with task-specific neural patterns playing a key role.