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Towards a network theory of cognition
1Rotman Research Institute, Baycrest Centre, Department of Psychology, University of Toronto, Ontario, Canada. mcintosh@psych.utoronto.ca
Summary
Brain connectivity and transient response plasticity are key to understanding cognition. Neural context, not isolated regions, defines mental functions by examining spatiotemporal brain interactions.
Area of Science:
- Cognitive Neuroscience
- Neurophysiology
- Systems Neuroscience
Background:
- Cognitive neuroscience requires neurophysiology to explain brain functions.
- Brain connectivity exists between full redundancy and independence.
- Transient response plasticity is a widespread neural property.
Purpose of the Study:
- To propose two critical features for advancing cognitive neuroscience: brain connectivity and transient response plasticity.
- To introduce the term 'semiconnected' to describe brain connectivity.
- To illustrate how neural context shapes cognitive function.
Main Methods:
- Review of neurophysiological principles.
- Conceptualization of 'semiconnected' brain networks.
- Analysis of transient response plasticity.
- Illustration with three examples of neural context.
Main Results:
- Brain connectivity, termed 'semiconnected', is a critical feature.
- Transient response plasticity is a ubiquitous neural property.
- Cognitive functions emerge from the interaction of brain areas, not isolated regions.
Conclusions:
- Understanding cognition requires integrating brain connectivity and plasticity.
- Neural context, defined by spatiotemporal patterns of neural interactions, is crucial.
- Bridging the gap between brain and mind relies on understanding neural context.