Topic: joint PCA

Spatiotemporal properties of motor cortex neuronal activity have been extensively studied, with the interpretations of voluntary movement mechanisms being the key issue. Two competing models, representational and dynamical, explain the conversion of neuronal activity into limb movements. The dynamical model uses the joint PCA method, which holistically characterizes neuronal oscillations by maximizing data rotational features. Different interpretations tried to explain the presence of rotational dynamics in neuronal patterns (Fig. 1a, c). Yet, their exact nature remains poorly understood.Here