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Updated: May 24, 2026
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An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents
Published on: August 2, 2018
Neuronal activity in the human subthalamic nucleus encodes decision conflict during action selection
Kareem A Zaghloul1, Christoph T Weidemann, Bradley C Lega
1Surgical Neurology Branch, NINDS, National Institutes of Health, Bethesda, Maryland 20892, USA. kareem.zaghloul@
Summary
The subthalamic nucleus (STN) plays a key role in selecting actions. Its activity increases during decision-making, especially when choices are difficult, highlighting its function in resolving conflict.
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Decision Science
Background:
- The subthalamic nucleus (STN) is a crucial component of the basal ganglia circuitry.
- Its anatomical position suggests a role in integrating cortical inputs for action selection.
Purpose of the Study:
- To investigate the role of the human STN in action selection during decision-making.
- To examine the relationship between STN activity and decision conflict.
Main Methods:
- Microelectrode recordings during deep brain stimulation surgery.
- Analysis of STN spiking activity during a decision task.
Main Results:
- STN spiking activity significantly increased during decision-making.
- The level of STN spiking activity correlated positively with the degree of decision conflict.
Conclusions:
- The human STN is implicated as a key mediator of action selection.
- STN activity is modulated by decision conflict, suggesting a role in resolving competing action choices.
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