consciousness and the social brain michael s. a. graziano collaborators: yin kelly taylor webb...
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CONSCIOUSNESS AND THE
SOCIAL BRAIN
Michael S. A. Graziano
Collaborators:Yin Kelly
Taylor WebbJeffrey Meier
Sabine Kastner
Attention Schema Theory
How and why do brains attribute the property of consciousness to themselves?
Selective signal enhancement
How can the brain control attention?
How can the brain control attention?Partly by using a model of attention.
How can the brain control attention?Partly by using a model of attention.
(e.g. the brain controls the arm using an internal model of the arm.)
Awareness = Attention Schema
I am attending to an apple
I am attending to an apple
Color
Shape
Texture
Movement
Smell
Semantic Knowledge
I am attending to an apple
Color
Shape
Texture
Movement
Smell
Semantic Knowledge
Location Of Self
Body Schema
Self Identity
Mood
Memory
Color
Shape
Texture
Movement
Smell
Semantic Knowledge
Location Of Self
Body Schema
Self Identity
Mood
Memory
AttentionSchema
Color
Shape
Texture
Movement
Smell
Semantic Knowledge
Location Of Self
Body Schema
Self Identity
Mood
Memory
AttentionSchema
Color
Shape
Texture
Movement
Smell
Semantic Knowledge
Location Of Self
Body Schema
Self Identity
Mood
Memory
AttentionSchema
Color
Shape
Texture
Movement
Smell
Semantic Knowledge
Location Of Self
Body Schema
Self Identity
Mood
Memory
AttentionSchema
Color
Shape
Texture
Movement
Smell
Semantic Knowledge
Location Of Self
Body Schema
Self Identity
Mood
Memory
AttentionSchema
Color
Shape
Texture
Movement
Smell
Semantic Knowledge
Location Of Self
Body Schema
Self Identity
Mood
Memory
AttentionSchema
Predictions
If:
Awareness = schematic model of attention
Predictions
If:
Awareness = schematic model of attention
Then:
Prediction 1) You should be able to pay attention to something without being aware of it.
Predictions
If:
Awareness = schematic model of attention
Then:
Prediction 1) You should be able to pay attention to something without being aware of it.
Prediction 2)
Predictions
If:
Awareness = schematic model of attention
Then:
Prediction 1) You should be able to pay attention to something without being aware of it.
Prediction 2) Without awareness of an object, attention to that object should become less controlled.
Predictions
Temperature outside
Tem
pera
ture
Ins
ide
Temperature outside
Tem
pera
ture
Ins
ide
Working Control Mechanism
Temperature outside
Tem
pera
ture
Ins
ide
Working Control Mechanism
Broken Control Mechanism
Aware
Aware
Unaware
AL
AL
AL
Latency(Seconds)
1.0
Match
0.5
AL
Latency(Seconds)
Match
1.0
0.5
AL
Latency(Seconds)
Match Mismatch
1.0
0.5
AL
Latency(Seconds)
Match Mismatch
1.0
0.5
Aware
Unaware
If:
Awareness = schematic model of attention
Then:
Prediction 1) You should be able to pay attention to something without being aware of it.
Prediction 2) Without awareness of an object, attention to that object should become less controlled.
Predictions
Prediction 3) Brain areas involved in attributingawareness to oneself should overlap with brainareas involved in attributing awareness to others.
Gaze and expression suggest the sameanswer.
Gaze and expression suggest the sameanswer.
Gaze suggests one answer, Expression suggests a different answer.
Left Hemisphere Right Hemisphere
Left Hemisphere Right Hemisphere
TPJ (Temporo-parietal Junction)
Awareness
AttentionSocialAttribution
Jellyfish
JellyfishHuman
Consciousness
Attention Schema Theory
Awareness is a schematic model of attention.
The brain attributes awareness to itself and to others.
Left Hemisphere Right Hemisphere
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