M2, T3, patient assessment of object recognition processes

Question 1

Initial raw visual representation features and tests - Ellis and Young

Answer 1

Basic features: colour, motion, shape (edges), depth, orientation

Tests:
size matching
length matching
gap matching
colour vision test
orientation matching

Question 2

Viewer-centred description features and tests - Ellis and Young

Answer 2

Basic features: spatial locations visible surfaces, uses depth and location, object represented from viewer’s perspective

Tests:
over-lapping figures
incomplete letters
Gollin picture task
copy drawings 1

Question 3

Object-centred description features and tests - Ellis and Young

Answer 3

Features: real shape of objects and surfaces, independent of view-point of viewer

Tests:
unusual views naming -> between viewer-centred and object centred
unusual views matching -> between viewer-centred and object-centred
copy drawings 2

Question 4

Object recognition units features and tests - Ellis and Young

Answer 4

Features: stored object representations

Tests:
draw from memory
object decision test
colour decision test 1
heads test
tails test

Question 5

Semantic system features and tests - Ellis and Young

Answer 5

Knowledge about object uses and properties

tests:
colour decision test 2
function matching test
associative matching
living/non-living decision
definition tasks 
semantic matching tasks (pic-pic, pic-word, pic-cat label)

Question 6

Semantic word tests

Answer 6

synonym matching
verbal definition
matching spoken and printed words

Question 7

Speech output lexicon features and tests - Ellis and Young

Answer 7

store of verbal output

tests:
picture naming
picture pointing
written picture naming
mime function