Lec 9

Question 1

Face-selective neurons

Answer 1

respond to faces more than non-face objects and visual stimuli. large number of face selective neurons found in ventral visual cortex

Question 2

Imaging techniques on face-selective neurons

Answer 2

EEG found faces evoke unique response from brain. PET and fMRI found response elicited in ventral visual cortex

Question 3

core face-selective networks

Answer 3

FFA, OFA, pSTS-FA, aSTS-FA, ATL, underscore initial sensory stages of face perception and are feedforward (future oriented solutions). Provide opportunity to link discrete behaviour to activity in discrete brain regions. familiar faces activate core systems more than unfamiliar.

Question 4

extended face selective networks

Answer 4

MPFC, TPJ, IPS, amygdala / insula
amygdala helps detect and orient towards faces and plays a role in face detection and prioritisation

Question 5

face detection

Answer 5

faces have unique structural code distinguished from non face stimuli. falsely detecting face = pareidolia
face selective cortex emerges 12 + months

Question 6

abnormal face detection

Answer 6

ASD have atypical patterns of amygdala activity and connectivity

Question 7

moebius syndrome

Answer 7

congenital disorder where limited lateral gaze and non-progressive facial paralysis due to lack of 6, 7 cranial nerve

Question 8

social categorisation

Answer 8

form impression of facial attributes even on people unknown

Question 9

face space

Answer 9

multidimensional space in which recognisable faces are stored based on attributes

Question 10

prosopagnosia

Answer 10

FFA encodes individual face identities, right FFA damage causes prosopagnosia, where unable to recognise a person

Question 11

capgras delusion

Answer 11

False belief that identical duplications or impostors have replaced significant others (found in dementia)