Object Recognition tests

Question 1

Initial Raw Visual Representation

Answer 1

• Colour vision (green dots on blue etc)
  
  • Size matching (are the two shapes the same size?
  • Line matching - are the two lines the same length?
  • Gap matching - are the gaps in the 2 circles in the same position?
  • Orientation Matching - Are the lines at the same orientation?

Question 2

-Viewer centred description

Answer 2

–overlapping figures - name the things you can see - if they can’t name may show a semantic, obj recognition, speech output lexicon or spoken name issue (inconclusive)

• incomplete letters - name the letters
• if failed - is evidence toward a VCD deficit

Gollin Picture

• name the pictures
• naming issue - same issues as the overlapping figures - not conclusive

Copy drawing - copy the drawing
- Pretty good at getting to a VCD deficit

If all failed - but Initial raw vis representation passed - then likely a VCD deficit -

Question 3

Arrow - viewer-centred and object-centred descriptions

Answer 3

• Unusual views matching - Which two pictures show the same thing?
• unusual views naming - Name the picture (shows the same object from two different and unusual views)

If matching passed but naming failed then likely rotation is ok but issues further down the line

Question 4

Object Centred Description

Answer 4

Copy Drawings 2 - copy the drawing

if the patient completes copy drawing 1 - they should pass copy drawings 2

Question 5

Object recognition units

Answer 5

Draw from memory - eg draw a picture of a cat

- What can you tell me about its visual features
- Eg. Please draw a cat
- If they've failed a drawing from memory test - its because they can't draw it from memory

Object decision - Is this a real object or not (eg, a screwdriver or a pair of scissors combined with pliers)

Colour decision 1 - Is this the right colour for this object?
Heads test - Point to the head that matches the body
Tails test - Does the animal have a short or long tail compared to their body?

Question 6

Semantic System

Answer 6

Colour decision 2 (same as 1 -if pass 1 should pass 2)

-function matching - which two objects have the same funciton?

associative matching - which object matches the one in the centre? (eg keys and a lock)

living-nonliving decision - is this a picture of a living or non-living thing?

Semantic meaning (pics, words or labels (can point)) Which picture matches the word?

Synonym matching - For this task words are either printed or auditorily presented and the patient must pick which two words have the same meaning.

Verbal Definition - Please tell me the name of the animal that is the king of the jungle? - Please define the word cake.

Match spoken and printed words - Point to the words when I say them aloud.

Question 7

Speech Output Lexicon

Answer 7

-if deficit in SOL - may have all the knowledge stored but unable to get it out

Picture naming - name this picture

Picture pointing - point to the picture of ..

written picture naming - Write down the name of the pictures

mime function or use of object - Show me how you use this object