Neglect

Question 1

What’s reverse engineering?

Answer 1

Removing region from brain and measuring effect

Question 2

What does reverse engineering show with objects?
And with strokes?

Answer 2

Different regions in brain have different functions - eg with living and non living objects
Stroke - can identify tools but not animals

Question 3

What’s the neglect meaning? (Heilman et al)

Answer 3

Injury - one side of body/brain body - unable to respond to stimuli
Impairment of attention

Question 4

What are some examples of one-sided things patients may do?

Answer 4

Shave, makeup, read, eat off one side
Ignore people on left

Question 5

Most common cause of neglect?

Answer 5

Stroke - right hand side
Parietal lobe

Question 6

What are the three tasks used?

Answer 6

1. Line bisection
2. Picture copying
3. Cancellation

Question 7

What did the line bisection show?

Answer 7

Marked midpoints of lines mainly on the right hand side of the lines and page

Question 8

Is it the same as being blind in the left eye?

Answer 8

No, blind people know the left side exists and move their head to see

Question 9

How does neglect usually recover?

Answer 9

Spontaneously over a few weeks

Question 10

How are memory tasks used for studying whether neglect affects mental representations?

Answer 10

Asked to draw something from memory - still seem to neglect left side

Question 11

When does extinction (mild form) occur?

Answer 11

When 2 or more objects are presented at the same time

Question 12

What did Rees et al find?
(stimuli presented in visual fields)

Answer 12

Patients - 58/60 stimuli - left visual field only
Both visual fields - 2/60

Question 13

What are a couple non-spatial deficits in attention?

Answer 13

Longer attentional blink
Poor working memory
Bad sustained attention