Social Perception

Question 1

Prosopagnosia

Answer 1

• Condition where one loses ability to identify faces but keeps the ability to perceive objects
• shows that facial recognition is in a different part of the brain

Question 2

Processing facial expressions

Answer 2

Occurs in the superior temporal sulcus (STS)
- responds to any type of biological movement in face

Question 3

Patient WJ

Answer 3

• A stroke caused his prosopagnosia
  -He could still recognize the faces on sheep
• This showed us that there is a specific module in the brain that does human facial recognition

Question 4

Superior temporal sulcus (Haxby Face Processing model)

Answer 4

changeable aspects of faces - perception of eye gaze, expression and lip movement

Question 5

Inferior occipital gyri (Haxby Face Processing model)

Answer 5

early perception of facial features

Question 6

lateral fusiform gyrus (also known as FFA) (Haxby Face Processing model)

Answer 6

invariant aspects of faces - perception of unique identity

Question 7

Superior Temporal Sulcus (STS)

Answer 7

responds to
- eye movement
- mouth movement
- hand movement
- body movement

Question 8

Extended system of the Haxby face processing model

Answer 8

1.) Intraparietal Sulcus = spatially directed attention
-2.) Auditory cortex = prelexical speech perception
3.) amygdala, insula, limbic system = emotion
(1-3 are a part of the STS)
4.) Anterior temporal = personal identity, name abd biographical information
(4 is a part of the lateral fusiform gyrus )

Question 9

Processing Facial Attractiveness

Answer 9

People judged to have more attractive faces are treated differently

Question 10

WEIRD (issues with study of attractiveness )

Answer 10

Western
Educated
Industrialized
Rich
Democratic

Issue bc not everyone is WEIRD so the study did not cover a good sample size but only about 12%

Question 11

Fluctuating Asymmetry

Answer 11

• Individual variation between left and right traits that tend to be symmetric at the population level
  -Challenged to health increase fluctuating asymmetry
  ‘ Mutations
  ‘ Pathogens
  ‘ Toxins
  ‘ Infections
• symmetry may indicate phenotypic quality and how well an individual’s genome can resist disease and maintain normal development in the face of environmental perturbation

Question 12

Sex differences in face anatomy

Answer 12

relative to female faces male faces have
- larger jaws
-larger brow ridges
-more prominent cheekbones
- thinner lips
- more protuberant chin

Question 13

In WEIRD subjects, symmetric faces are made to me more or less attractive?

Answer 13

More

Question 14

Difference between facial perception in humans and monkeys?

Answer 14

Humans process face identity in the FFA and Mokeys process it in the IT but both process facial expression in the STS

Question 15

Sex differences in facial structure emerge wheN?

Answer 15

Puberty

Question 16

Facial femininity that emerges in women at puberty is generally considered?

Answer 16

more attractive in societies where it has been examined while facial masculinity that emerges at puberty may or may not be attractive

Question 17

attractive faces share what active targets of the brain ?

Answer 17

Mesolimbic dopamine system that is also used with rewarding foods suggesting that there is a common valuation system in the brain

Question 18

facial width to height ration may serve as a cue to -

Answer 18

Physical formidability