A normally-neglected element of new structure of your own reflect neuron method is the existence of backward connectivity regarding PM to STS, and this appear to have a websites inhibitory dictate [55,56]. Out-of a great Hebbian perspective, of these connectivity the difficulty is a little different, while the PM neurons in fact flame before the STS neurons, as Hebbian discovering demands, albeit two hundred ms rather than the 40 ms previous which can be optimum to own Hebbian learning. Hence, of these inhibitory viewpoints connections, inhibitory forecasts off PM neurons encoding a specific stage of your own action can be strengthened with STS representations of the identical action which taking place prior to ( figure step three c).
The latest eyes and you may sound out-of an action trigger hobby during the STS neurons
Once we consider both the forward and backwards information flow, the mirror neuron system no longer seems a simple associative system in which the sight of a given action triggers the motor representation of that action. This leads to a pattern of predictive activation of PM neurons encoding the action that occurs 200 ms after what the STS neurons represent, with their respective activation levels representing the likelihood of their occurrence based on past sensorimotor contingencies. However, the system would not stop at that point. This prediction in PM neurons is sent backwards as an inhibitory signal to STS neurons. (more…)