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The basal ganglia: a vertebrate solution to the selection problem?
P Redgrave1, T J Prescott, K Gurney
1Department of Psychology, University of Sheffield, UK.
Neuroscience
|June 11, 1999
Summary
The vertebrate basal ganglia may function as a central selection device, resolving competition for limited resources. This evolutionary adaptation helps manage motor and cognitive access conflicts.
Area of Science:
- Neuroscience
- Evolutionary Biology
- Cognitive Science
Background:
- Selection problems occur when multiple systems compete for limited resources.
- Centralized switching mechanisms offer advantages in managing resource access.
- Understanding these mechanisms is crucial for explaining complex behaviors.
Purpose of the Study:
- To propose the vertebrate basal ganglia as a centralized selection device.
- To investigate the basal ganglia's role in resolving conflicts over motor and cognitive resources.
- To analyze the functional architecture and anatomical context of the basal ganglia.
Main Methods:
- Consideration of various selection architectures.
- Functional and anatomical analysis of the vertebrate basal ganglia.
- Comparative study of resource competition in biological systems.
Main Results:
- Centralized switching mechanisms are advantageous for resource management.
- The basal ganglia's structure and position suggest a role in selection.
- The basal ganglia appear specialized for resolving access conflicts.
Conclusions:
- The vertebrate basal ganglia likely evolved as a centralized selection device.
- This mechanism resolves competition for limited motor and cognitive resources.
- The basal ganglia's architecture supports its function as an efficient selection mechanism.