face recognition Flashcards
Bruce and Young’s model of face recognition properties
- modular: different activities processed independently
- distinct pathways for recognising familiar faces vs recognising expression, etc
- parallel pathways: dealing with facial expression, facial speech, visually derived semantic information (e.g. sex, age, race)
Bruce and Young’s model of face recognition components
familiar faces activate: the facial recognition unit (FRU)
FRUs are linked to person identity nodes –> gateways to semantic information about the person
PINs are linked to name generation
evidence for Bruce and Young’s model
repetition priming
semantic priming
a face is responded to faster if it follows a closely related face (e.g. Charles –> Diana
no means to account for this using the Bruce & Young model
IAC model
concept and category learning
semantic info is ‘pooled’
knowledge is represented in pools
relationships are represented by connections between pools
within pools: mutually inhibitory
between pools: mutually facilitatory
agnosia
when object recognition fails
apperceptive agnosia
- able to move around and negotiate obstacles without difficulty
- grasp reveals knowledge about size and shape
- unable to carry out basic copying and matching
- failure occurs at stage 2 ‘shape representation’
associative agnosia
- copying and matching skills are intact
- unable to NAME object despite intact knowledge
- failure to access knowledge about the objects
- damage at stage 3 ‘object representation’
prosopagnosia
- inability to recognise faces
- usually right inferotemporal lesion
- unable to recognise faces through visual input but recognition by other modalities remains intact –> iduviduals can be recognised by their voices
capgras delusion
- ## recognise a face yet deny identity of individual