Neural ensemble activity in the human motor cortex contains dynamical structure that is independent of movement parameters and is not well-explained by current models.
Neurons in motor cortex contain information about each arm, but these signals are separated into different dimensions, allowing separate control of each arm.
Early in development, before neurons in primary motor cortex are involved in motor control, they undergo a rapid transition in how they process sensory information following sleep and wake movements.
The projections from discrete areas to motor cortex increase over disease course in motoneuron disease model with selective spatial and temporal patterns.
Neurons in human dorsal motor cortex, an area involved in controlling arm and hand movements, are also active – and show similar ensemble dynamics – during speaking.
Voluntary movements are preceded by a temporally flexible preparatory neural process that is present regardless of whether movement is initiated rapidly or thoughtfully.
An illusion in which individuals feel that their own hand no longer belongs to them may reflect a temporary reduction in the brain’s ability to control the movement of the hand.
New evidence challenges the long-held view that motor cortex lacks a fourth layer, and reveals that its circuitry resembles that of other cortical regions more than previously thought.
