L8 mirror neurons Flashcards
cross modal transfer
perception to action - mapping visual info onto our motor systems (perception action mapping)
developmental evidence
babies imitate: piaget (1 yr) others (12-21 weeks), longitudinal study more like 9 months (control model behaviours/behavioural matching)??
AIM
active intermodal matching -specific module for imitation - use other faces to determine whats happening on ours - separate coding for perceptions and action
IM
Ideomotor - priming through similarity - generalist processes for motor control and learning
ASL
associative sequence learning - learn by seeing consequences of our own hand - generalist process for motor and learning
dual route processing model
2 mechanisms by which we imitate actions - semantic (store in long term) and visuomotor (meaningless mimicry)
mirror neurons
bimodal – have audiovisual mirror neurons - also known as action observation realted visuomotor neurons - tthere are both I and E neurons
MNs found in monkeys in
FT Inferior posterior lobe - Prefrontal cortex
humans MNs found in
ST, VIF, PPL and brocas
indirect evidence for mirror neurons
P&A are very closely linked, behavioural evidence, brain imagin and TMS
Behavioural evidence
we are faster at doing a task after we’ve seen someone else doing it and slower when its the opposite action
TMS evidence
stimulate motor neuron and it evokes the same thing as seeing the action
direct observations of MNs
epilepsy patients undergoing surgery - SMA hippocampus
cross species similarities
biting = same activation. lipsmacking and lip reading is the same. barking isn’t.
monkey M neuron distribution
80% for ingestion and 20% for communicative. monkeys don’t imitate. only goal directed actions.
