Presented by Amrita Singh and Sandeep Aitha Keysers C Gazzola V 2014 Hebbian learning and predictive mirror neurons for actions sensations and emotions Phil Trans R Soc ID: 1018769
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1. Mirror Neurons and Mind ReadingPresented by Amrita Singh and Sandeep AithaKeysers C, Gazzola V. 2014 Hebbian learning and predictive mirror neurons for actions, sensations and emotions. Phil. Trans. R. Soc.
2. Basic Hypothesis: Development of Mirror Neurons through Hebbian Learning
3. Hebbian Learning:Neurons that fire together, wire togetherContingency and Contiguity are important
4. STSSuperior Temporal SulcusPMPre-Motor CortexGenerates Motor ActionsResponds when viewing and hearing actions
5. Re-afference: Seeing your own actions
6. Thus, strong excitatory connections are developed from STS neurons which respond when an action is observed, to PM neurons which elicit the action. PM neurons become mirror neurons.
7. Spike Timing Dependent PlasticityA repeatedly fires 40 ms before BA repeatedly fires just after BB repeatedly fires without A firingAB
8. PMGenerates ActionSTSResponds to Sight of ActionAction 1Action 2Action 3200 ms40 ms
9. Mirror Neurons for SensationsSomatosensory cortex activated when we see others being touchedSimilar mechanism for development is proposedNo prediction
10. Mirror Neurons for EmotionsImitation of facial expressions by parentsMight be genetically encoded
11. Thank You!
12. ReferencesGallese V, Fadiga L, Fogassi L, Rizzolatti G. 1996 Action recognition in the premotor cortex. Brain 119, 593–609Caporale N, Dan Y. 2008 Spike timing-dependent plasticity: a Hebbian learning rule. Annu. Rev. Neurosci. 31, 25–46.Umilta MA, Kohler E, Gallese V, Fogassi L, Fadiga L, Keysers C, Rizzolatti G. 2001 I know what you are doing: a neurophysiological study. Neuron 31, 155–165.
13. Keysers C, Gazzola V. 2014 Hebbian learning and predictive mirror neurons for actions, sensations and emotions. Phil. Trans. R. Soc.