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Ongoing Brain Activity and Its Role in Cognition: Dual versus Baseline Models
Georg Northoff1, Deniz Vatansever2, Andrea Scalabrini3
1University of Ottawa, Ottawa, ON, Canada.
Summary
Ongoing brain activity acts as a neuronal baseline, not just for rest but also for tasks. This baseline provides a shared neural code, integrating brain states and cognition, supporting a "baseline model" over a "dual model".
Area of Science:
- Neuroscience
- Cognitive Science
- Brain Activity Research
Background:
- Current understanding often contrasts resting-state brain activity (default-mode network, internal mentation) with task-state activity (non-DMN, external mentation), forming a
Purpose of the Study:
- To propose and support a
Main Methods:
- Analysis of empirical evidence
- Examination of intrinsic neural timescales
- Investigation of global signal topography and dynamics
Main Results:
- Ongoing brain activity functions as a neuronal baseline, not solely associated with rest.
- This baseline provides a shared neural code for both rest and task states.
- Evidence supports a
Conclusions:
- The
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