SOC 241: Section 2
Lecture Notes: Feb. 3rd to Feb 26th 2014
February 3rd 2014
As our emotions change, we appear more or less attractive
● happy/neutral expression = more attractive than sad expressions
● Even same face is less attractive if sad expression
Two kinds of neural connections: activating and inhibiting
● activating: active cells when certain characteristics are noticed
● inhibiting: cells do not activate if characteristics aren’t present
February 5th/7th 2014
Can a computer tell the difference between faces?
● does a near perfect job of determining gender, expression, and code number, even if it has
never seen the pictures before.
● variable correspond to whether a face is female or male, happy or sad.
If the same face is presented, but with different expressions:
● computer can distinguish positive emotions, had trouble with negative emotions with the
exception of anger.
How does the computer do this?
● by looking at pattern of pixels can determine what the computer is looking for
● Patterns look like kind of like a face
Language gives us limited acces to understand our self
● B & B: when you understand how your brain distinguishes faces you understand self
● Lec: this is only a partial understanding
● We have verbal access (we can describe it) to only certain parts of our physiology.
Idea that there is circular flow to the brain. February 10th/12th
● study: infants were better at recognizing faces of their own race + female.
● siblings rate people similarly.
● Study: took ordinary picture of face, made two new pictures: transformed with either high
frequency information or low frequency information
○ had people match photos: either set of real faces, high frequency, or low frequency.
● sensible world = social world
● constructed world
○ built up by neurological activity
● Illusions: can “see” through hands
○ understanding/sensibleness can vary
○ even when world is correctly seen, it’s still constructed.
● Patterns that we can connect have time components, time is part of our