What is gating by interneurones? And give an example.
Interneurones can act as control mechanisms to interrupt a pathway via inhibition, this is called gating. A typical example of this is the “pain gate theory” = after an injury, sensory neurones transmit the sensation of pain to the CNS, however if you rub the affected area you manage to slightly reduce the pain because this action activates mechanoreceptors that act via interneurones to inhibit the pathways transmitting the pain signal i.e. “close the pain gate" ( explained in greater detail in D&B lecture on opioid analgesics).