How Has the Gate Control Theory of Pain Changed in Recent

Multiple Choice

How has the gate control theory of pain changed in recent years?

A) Early versions of the theory focused on pain gates in the spinal cord. Recently, the theory has incorporated pain blocking mechanisms in the brain itself.
B) Early versions of the theory focused on pain gates in the brain. Recently, the theory has incorporated pain blocking mechanisms in the spinal cord.
C) Early versions of the theory focused on pain gates in the spinal cord. Recently, the theory has rejected this mechanism of pain control.
D) Early versions of the theory focused on pain gates in the brain. Recently, the theory has rejected this mechanism of pain control.