Prosopagnosia (face processing deficits) Flashcards
What is the core symptom of prosopagnosia?
Inability to recognise faces
What is apperceptive prosopagnosia (APP)?
Difficulty in forming a holistic representation of a face
In severe cases of APP, what additional difficulty may occur?
Inability to detect faces or distinguish faces from objects
What is associative prosopagnosia (ACP)?
Ability to perceive faces but failure to recognise them as familiar
What can individuals with ACP typically identify about faces?
Facial features like gender or age
Which model is mentioned for understanding face processing deficits?
Haxby model (2000)
According to the Haxby model, which system is primarily affected in APP?
The core system
In APP, which brain area is associated with initial stage of face processing?
Occipital face area
Which brain area is involved in forming complete facial percepts?
Fusiform face area
What is the role of the fusiform face area in face processing?
Forming complete facial percepts
How does ACP affect face processing according to the Haxby model?
Impairs association of perceived faces with stored knowledge about individuals
What is the key distinction between APP and ACP in the Haxby model?
APP affects initial structural encoding, ACP affects association with stored knowledge
How do individuals with Autism Spectrum Disorder (ASD) process faces?
Rely on individual facial features rather than whole-face configurations
What specific difficulty do adults with ASD have in recognising facial expressions?
Less accurate and slower response times, particularly for neutral expressions
What is a primary difference between prosopagnosia and ASD in face processing?
Prosopagnosia affects identity recognition, ASD impacts emotional and social processing
