COGS 101A Lecture Notes - Symmetry In Biology, Prototype Theory, Twin Study
● Vision and Social Perception
○ What is the vis system for?
■ “Vision is (way more than) ..”
● Visuo-socio Phenomena
○ Rapid visuo social perception
■ Visual thin-slice
● Brief silent excerpt of expressive behavior typically ~30 seconds
● Exp
○ Teaching effectiveness
○ Criminal behavior
○ Trait anxiety and depression
○ Sexual orientation
○ Sociosexuality/ sexual permissiveness (promiscuity)
○ Trial judges
○ Malpractice
○ Relationship type
■ Rapid prediction of biological motion
● Being able to predict biological movement (knowing people will
walk and where they will point)
● Exp
○ Walking around/ commuting and not
○ Goalie
● Human vs. Computer
○ People are able to predict movement much more easily
with humans because there are more subtle movements in
humans before they move
○ Get info from the torso and head but do better when we
can see full person
■ Biological motion
● Point-light walkers
○ Can tell gender and emotion form dots on a few joints
● Superior temporal sulcus
○ Essential for detecting bio motion
○ Faces
■ Pareidolia
● Any situation where you pick a pattern where there is not pattern
● Exp. we have tendency to see faces when they’re not there
■ Infants after birth have preference of looking at faces or face-like objects
■ Far more view-point
● “Margaret thatcher effect” facial features are flipped but we don’t
realize if the face is upside down
■ Holistically processed
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Brief silent excerpt of expressive behavior typically ~30 seconds. Being able to predict biological movement (knowing people will walk and where they will point) People are able to predict movement much more easily with humans because there are more subtle movements in humans before they move. Get info from the torso and head but do better when we can see full person. Can tell gender and emotion form dots on a few joints. Any situation where you pick a pattern where there is not pattern. Exp. we have tendency to see faces when they"re not there. Infants after birth have preference of looking at faces or face-like objects. Margaret thatcher effect facial features are flipped but we don"t realize if the face is upside down. As a whole, individual features don"t matter much. Evidence of face neurons from monkey it. 7 hours later started showing activity in ffa. Super-recognizers (really good at recognizing things and faces)
