who am i Flashcards
ownership
Subjective experience of ownership – our hands belong to us
Hand is part of you and part of your body
Also, thoughts/feelings have ownership too – they are not someone else’s thoughts and they are not just floating around thoughts
agency
Unified person who can act in the world
Can initiate voluntary acts
Can experience myself as being identical through time
Concept of self has continuity to it
patient DF
brain damage to ventral pathway
- letter posting task
could orientate the letter but not his hand
so info not available to perceptual system
hidden from perceptual awareness
blindsight
- An ability to detect things but not be aware of them
- When something was moving, he was able to detect this but not when it was still
change blindness
2 images presented quickly with a major difference
This can take a while to actually notice that anything is different in the picture
Your subjective experience is of awareness of everything in the scene
But change blindness studies show that our brain’s representation of the world is anything by complete.
visual masking
Face is not perceived when shown after a very short delay
If you make face 1 a frightened face and use the masking so it is not perceived
It still activates the amygdala (relative to a happy face 1), even though you do not perceive the fearful face.
rubber hand illusion
What is felt and seen are integrated together to make it feel as though the fake hand is yours
Perception has shifted towards the more reliable visual information
body swap dummy
When synchronous stroking they perceive they inhibit the dummy body
body swap person
They could see their own body in the lower half of vision.
In the upper, they saw the video feed from other person
Synchronous hand squeezing condition.
perceive the shake hands themselves
Not in the asynchronous condition
virtual out of body experience
- Visual spatial perception – look back at own body
- See someone elses limb as your own
- Virtual reality trick makes you think your body is over here
free will
Regardless of the reality of free-will, you have a strong experience of having agency.
Our brains simulate world model.
It seems we also have a self-model.
This self-model is that of an independent being, with agency over their body, which they own.
The proposal is that this is a useful fiction. A reasonable level of description to organise behaviour, survive and reproduce.
alien hand syndrome
Unintended, goal-directed movements of one hand.
Not under conscious control.
Retain sense of ownership, but loose sense of agency.
.
direct brain stimulation
Triggers arm movement
Also get the conscious experience of the urge of wanting to perform the action
Whatever conscious experience of will is, we can experimentally switch it on by electrical stimulation of the brain
faulty inferential mechanism
cognitive module whose function is to decide if actions are self-produced.
crucial in any motor behavior
-Match: implies action was self-produced (sense of agency?)
-No-match: implies action was externally produced (no sense of agency?)
-Their findings suggest delusions of agency are due to faulty predictions of the sensory consequences of actions.
Metzingers self model
It is episodically active. The self is not always in operation.
It is a representational entity. Our brain represents the external world (which includes your body), accurately or not so accurately.
Its function is to help you get around as an agent. It is evolutionarily adaptive to think of yourself as an agent
