Download 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
Extended System
Core System
Prefrontal
Region
Core-3 bilateral regions
Inferior
Occipital
Gyrus
Superior
Temporal Sulcus
-input to
both regions
-changeable
aspects
Fusiform Gyrus
-representation of
Identity
Extended-additional regions
-Interpret meaning from faces
Amygdala (limbic) and Prefrontal
cortex
( Inferior Frontal Gyrus,
Orbitofrontal Cortex )
*Temporal- auditory
*Parietal-spatial attention
How did they know?
Face-responsive Regions
Core 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
Events
Activation of
the
appearance
Famous Faces
Activation of
Semantics
….I’ve seen him
somewhere….??
Isn’t he the President
of the United States….
Retrieval of
Persons name
That’s Barack
Obama!!!
Anterior middle temporal gyrus