Scientific concept related to the somatic motor system
Memory cells are found in the primary motor cortex (M1), a region located in the posterior portion of the frontal lobe of the brain. Their behavior is described by Bizzi et al. as:
In a baseline epoch (no force field on the end effector), they have one preferred direction
In a force perturbation epoch, they show a change in the preferred direction
In a subsequent washout epoch (no force field on the end effector), the change in preferred direction persists.
References
↑Li C-SR, Padoa-Schioppa C, Bizzi E: Neuronal correlates of motor
performance and motor learning in the primary motor cortex of
monkeys adapting to an external force field. Neuron 2001,
30:593-607