Lecture 15 - Perception and dyslexia Flashcards
which pathway, p or m, detects colour, low contrast and has a higher spatial resolution?
p
which pathway, p or m, detects monochrome, high contrast and has a lower spatial resolution?
m
which pathway are parasol cells part of?
parvocellular
which pathway are midget cells part of?
magnocellular
which cortex is critical for recognising shape of objects both in vision and touch?
lateral occipital cortex
the dorsal stream is the …… pathway and the ventral is the …… pathway
where, what
the parvo and magnocellular pathways go to which cortex in the brain?
occipital (v4)
what are the 2 brain areas involved in recognition?
fusiform face area, parahippocampal place area
apperceptive agnosia is a failure to percieve what?
object
integrative agnosia describes a failure to integrate what?
parts of an object
associative agnosia is the inability to access what?
conceptual knowledge about an object
prosopagnosia is the inability to recognise what?
faces
phonagnosia is the inabillity to recognise what?
familiar voices
in dyslexic people there may be symmetric processing of visual info by which two areas of the eye?
fovea and retina
in people with dyslexia what 2 things can be abnormal about the myelination around their neurons?
could be hyper or hypomyelinated - no smooth delivery of info