the distributed human neural system for face perception
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
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 Extended System
Prefrontal RegionPrefrontal Region
Core-3 bilateral regions
Superior Temporal Sulcus
-changeable aspects
Fusiform Gyrus
-representation of Identity
Inferior Occipital Gyrus
-input to both regions
Extended-additional regions
Amygdala (limbic) and Prefrontal cortex ( Inferior Frontal Gyrus, Orbitofrontal Cortex )*Temporal- auditory*Parietal-spatial attention
-Interpret meaning from faces
How did they know?
Face-responsive RegionsCore System
Lateral Fusiform Gyrus
Activity Response
“Fusiform Face Area”
Core Neural system
Step 1
Face Identification
Extended Neural System
Step 2
Perceive face and expression
Step 3
Infer mood
“He is Upset”
Direct vs. Averted Gaze
Which is more interesting?
Face Perception and Spatial Attention
Superior Temporal Sulcus+
Intraparietal Sulcus
Parietal Neural Systems
Averted Gaze
Face Perception and Spatial Attention
Famous FacesEvents
Activation of the
appearance
Activation of the
appearance
Activation of Semantics
Activation of Semantics
Retrieval of Persons name
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