Lecture 15 - Perception and dyslexia

Question 1

which pathway, p or m, detects colour, low contrast and has a higher spatial resolution?

Answer 1

p

Question 2

which pathway, p or m, detects monochrome, high contrast and has a lower spatial resolution?

Answer 2

m

Question 3

which pathway are parasol cells part of?

Answer 3

parvocellular

Question 4

which pathway are midget cells part of?

Answer 4

magnocellular

Question 5

which cortex is critical for recognising shape of objects both in vision and touch?

Answer 5

lateral occipital cortex

Question 6

the dorsal stream is the …… pathway and the ventral is the …… pathway

Answer 6

where, what

Question 7

the parvo and magnocellular pathways go to which cortex in the brain?

Answer 7

occipital (v4)

Question 8

what are the 2 brain areas involved in recognition?

Answer 8

fusiform face area, parahippocampal place area

Question 9

apperceptive agnosia is a failure to percieve what?

Answer 9

object

Question 10

integrative agnosia describes a failure to integrate what?

Answer 10

parts of an object

Question 11

associative agnosia is the inability to access what?

Answer 11

conceptual knowledge about an object

Question 12

prosopagnosia is the inability to recognise what?

Answer 12

faces

Question 13

phonagnosia is the inabillity to recognise what?

Answer 13

familiar voices

Question 14

in dyslexic people there may be symmetric processing of visual info by which two areas of the eye?

Answer 14

fovea and retina

Question 15

in people with dyslexia what 2 things can be abnormal about the myelination around their neurons?

Answer 15

could be hyper or hypomyelinated - no smooth delivery of info

Question 16

myelination is important for which cognitive and motor skills?

Answer 16

language comprehension, speech acquisition, crawling and walking

Question 17

name 3 neurological disorders related to demyelination

Answer 17

MS, schizophrenia and leucodystrophy