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To touch or not to touch: posterior parietal cortex and voluntary behavior
1Yale University School of Medicine, Department of Neurobiology, 333 Cedar Street, New Haven, CT 06510, USA. daeyeol.lee@yale.edu
Neuron
|November 9, 2007
Summary
Neurons in the primate posterior parietal cortex maintain effector-specific coding of motor intentions. This occurs even without sensory cues, allowing for free choice of behavior.
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Primate Brain Research
Background:
- The posterior parietal cortex (PPC) in primates is crucial for various cognitive functions, including sensorimotor integration and decision-making.
- Previous research has linked PPC activity to the planning and execution of movements.
Discussion:
- This study investigates the role of PPC neurons in representing motor intentions.
- The research explores whether this representation is maintained independently of external sensory guidance.
- The findings shed light on the neural mechanisms underlying internally generated actions.
Key Insights:
- Neurons in the primate PPC exhibit effector-specific coding of motor intentions.
- This coding persists even in the absence of specific sensory instructions.
- The results suggest that the PPC plays a key role in free choice of behavior and internally driven actions.
Outlook:
- Further research could explore how PPC activity interacts with other brain regions during free-choice tasks.
- Investigating the developmental trajectory of these effector-specific codes could provide insights into motor learning.
- Understanding these mechanisms may have implications for treating disorders involving motor control and decision-making.
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