Participation of primary motor cortex area 4a in complex sensory processing: 3.0-T fMRI study

@article{Terumitsu2009ParticipationOP,
  title={Participation of primary motor cortex area 4a in complex sensory processing: 3.0-T fMRI study},
  author={Makoto Terumitsu and Kotaro Ikeda and Ingrid L. Kwee and Tsutomu Nakada},
  journal={NeuroReport},
  year={2009},
  volume={20},
  pages={679-683}
}
The precise movement of human fingers requires continuous and reciprocal interaction between motor and sensory systems. Similar to other primates, there is double representation of the digits and wrists within the human primary motor cortex (M1), which are generally referred to as area 4 anterior (M1-4a) and area 4 posterior (M1-4p). In this high-field (3.0 T) functional magnetic resonance imaging (fMRI) study, we hypothesized that M1-4p is more important for initiation of motion, whereas M1-4a… 
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TLDR
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