A new model for freedom of movement using connectomic analysis

PeerJ

article

Diego Alonzo Rodríguez-Méndez¹  Daniel San-Juan²  Mark Hallett³  Chris G. Antonopoulos⁴  Erick López-Reynoso¹  Ricardo Lara-Ramírez⁵ 

[1] Facultad de Ciencias, Universidad Autónoma del Estado de México;Epilepsy Clinic, Instituto Nacional de Neurología y Neurocirugía;Human Motor Control Section, Medical Neurology Branch, NINDS, National Institutes of Health;Department of Mathematical Sciences, University of Essex;Centro de Investigación en Ciencias Biológicas Aplicadas, Universidad Autónoma del Estado de México

关键词: Freedom;    Movement;    Connectomics;    Volition;    Cerebral cortex;    Agency;    Graph theory;    Small-world network;   

DOI  :  10.7717/peerj.13602

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

The problem of whether we can execute free acts or not is central in philosophical thought, and it has been studied by numerous scholars throughout the centuries. Recently, neurosciences have entered this topic contributing new data and insights into the neuroanatomical basis of cognitive processes. With the advent of connectomics, a more refined landscape of brain connectivity can be analysed at an unprecedented level of detail. Here, we identify the connectivity network involved in the movement process from a connectomics point of view, from its motivation through its execution until the sense of agency develops. We constructed a “volitional network” using data derived from the Brainnetome Atlas database considering areas involved in volitional processes as known in the literature. We divided this process into eight processes and used Graph Theory to measure several structural properties of the network. Our results show that the volitional network is small-world and that it contains four communities. Nodes of the right hemisphere are contained in three of these communities whereas nodes of the left hemisphere only in two. Centrality measures indicate the nucleus accumbens is one of the most connected nodes in the network. Extensive connectivity is observed in all processes except in Decision (to move) and modulation of Agency, which might correlate with a mismatch mechanism for perception of Agency.

【 授权许可】

CC BY