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The distributed human neural system for face perception

The distributed human neural system for face perception. -James V. Haxby , Elizabeth A. Hoffman, M. Ida Gobbini. Face Perception. Highly developed visual skill in humans Mediated by a Neural system. Consists of two parts: 1. 2. Neural System. Core System.

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The distributed human neural system for face perception

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  1. The distributed human neural system for face perception -James V. Haxby, Elizabeth A. Hoffman, M. Ida Gobbini

  2. Face Perception • Highly developed visual skill in humans • Mediated by a Neural system Consists of two parts: 1. 2.

  3. Neural System Core System Extended System Prefrontal Region

  4. Core-3 bilateral regions Inferior Occipital Gyrus -input to both regions Superior Temporal Sulcus -changeable aspects Fusiform Gyrus -representation of Identity

  5. Extended-additional regions -Interpret meaning from faces Amygdala (limbic) and Prefrontal cortex ( Inferior Frontal Gyrus, Orbitofrontal Cortex ) *Temporal- auditory *Parietal-spatial attention

  6. How did they know?

  7. Face-responsive Regions Core System Lateral FusiformGyrus Activity Response “Fusiform Face Area”

  8. Core Neural system Step 1 Face Identification

  9. Extended Neural System Step 2 Perceive face and expression Step 3 Infer mood “He is Upset”

  10. Direct vs. Averted Gaze Which is more interesting?

  11. Face Perception and Spatial Attention Superior Temporal Sulcus + Intraparietal Sulcus Parietal Neural Systems Averted Gaze

  12. Face Perception and Spatial Attention

  13. Famous Faces Events Activation of the appearance Activation of Semantics Retrieval of Persons name ….I’ve seen him somewhere….?? Isn’t he the President of the United States…. That’s Barack Obama!!! Anterior middle temporal gyrus

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