Technology Has Been Brought to Bear to Help People with Severed

Technology has been brought to bear to help people with severed or severely damaged spinal cords. This technology has relied on the general strategy of picking up electrical signals from the brain, amplifying the signals, and then delivering other electrical signals to the patient's muscles via electrodes. According to the textbook, this approach works most easily when

A) The signals sent to the muscles are based on population coding in the motor cortex
B) The signals sent to the muscles are based on population coding in the cerebellum
C) The signals sent to the muscles are based on the patient's reliance on trial and error learning, such that the patient learns, over trials, to generate brain signals that permit desired movements
D) The signals sent to the muscles rely on point attractors rather than limit-cycle attractors

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