A new model for freedom of movement using connectomic analysis

Area of Science:

• Neuroscience
• Cognitive Science
• Network Science

Background:

• The question of free will has long been debated in philosophy.
• Neuroscience offers new insights into the neural underpinnings of cognitive processes.
• Connectomics provides detailed analysis of brain connectivity networks.

Purpose of the Study:

• To identify the brain's connectivity network involved in volitional movement using connectomics.
• To analyze the network from motivation and execution to the development of agency.
• To map the neuroanatomical basis of volitional processes.

Main Methods:

• Construction of a "volitional network" using the Brainnetome Atlas database.
• Division of the volitional process into eight distinct stages.
• Application of Graph Theory to measure structural properties of the network.

Main Results:

• The identified volitional network exhibits small-world properties and comprises four communities.
• Right hemisphere nodes are distributed across three communities, while left hemisphere nodes are in two.
• The nucleus accumbens shows high connectivity, and specific processes (Decision, Agency Modulation) display less connectivity.

Conclusions:

• The study elucidates the network architecture underlying volitional action and agency.
• Asymmetrical hemispheric involvement in the volitional network is observed.
• Reduced connectivity in decision-making and agency modulation may relate to agency perception mechanisms.