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Mirror neurons


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Mirror neurons

  1. 1. Mirror Neurons & Autism Yung-Tsai Chu 2012/06/04
  2. 2. Outline Basic Neuro-Physiological Properties Function Overview Dysfunction of Mirror Neurons and Autism Spectrum Disorder (ASD)
  4. 4. Mirror Neurons
  5. 5. Now…
  6. 6. Illustration Motor Order Motor (from Premotor a.) Neuron Observation Mirror (Sensory Neurons Input)
  7. 7. The Parieto-Frontal Mirror Network Sensorimotor Integration Basis of Imitation
  9. 9. Function Overview Sensorimotor Integration Understanding the goal and intention Empathy Speech
  10. 10. Understanding the intention
  11. 11. Empathy
  12. 12. Speech “r” V.S “f” Different tongue muscle activity Language Learning
  13. 13. Mirror Neuron System Sensory Cognition Motor
  15. 15. Autism Spectrum Disorder (ASD) Characteristics of ASD  Isolation and Lack of Empathy Rationale: “Mirror neurons appear to be performing precisely the same functions that are disrupted in autism.”
  16. 16. EEG evidence
  17. 17. EEG evidence
  18. 18. Correlation
  19. 19. Explanations for Symptoms Not able to understand Intentions Lack of empathy Problems understanding metaphors  get a grip on yourself : to get control of your thoughts Poor Social Skills
  20. 20. Take-Home Message MNS is a network that can reflect what you observe and somehow activate motor areas (sensorimotor integration) Functions of MNS includes imitation, understanding of intentions, empathy, language learning etc. Dysfunction of MNS may be the cause of Autism Disorder
  21. 21. Reference Rizzolatti G and Fabbri-Destro M(2008) The mirror system and its role in social cognition. Massimo G et al. (2004) Modulation of premotor mirror neuron activity during observation of unpredictable grasping movements Rizzolatti G, Sinigaglia C (2010) The functional role of the parieto- frontal mirror circuit: interpretations and misinterpretations. Iacoboni M, Dapretto M. 2006. The mirror neuron system and the consequences of its dysfunction. Maddalena F-D et al.(2008) Mirror Neurons and Mirror Systems in Monkeys and Humans Singer T et al.(2004) Empathy for pain involves the affective but not sensory components of pain
  22. 22. Reference Fadiga al.(2002) Speech listening specifically modulates the excitability of tongue muscles: a TMS study. Vilayanur SR, Lindsay MO. 2007. Broken Mirrors: A Theory of Autism Oberman LM et al. (2005) EEG evidence for mirror neuron dysfunction in autism spectrum disorders Mirella D. et al.(2005) Understanding emotions in others: mirror neuron dysfunction in children with autism spectrum disorders. Luigi C et al. (2007) Impairment of actions chains in autism and its possible role in intention understanding