Neglect Flashcards
What’s reverse engineering?
Removing region from brain and measuring effect
What does reverse engineering show with objects?
And with strokes?
Different regions in brain have different functions - eg with living and non living objects
Stroke - can identify tools but not animals
What’s the neglect meaning? (Heilman et al)
Injury - one side of body/brain body - unable to respond to stimuli
Impairment of attention
What are some examples of one-sided things patients may do?
Shave, makeup, read, eat off one side
Ignore people on left
Most common cause of neglect?
Stroke - right hand side
Parietal lobe
What are the three tasks used?
- Line bisection
- Picture copying
- Cancellation
What did the line bisection show?
Marked midpoints of lines mainly on the right hand side of the lines and page
Is it the same as being blind in the left eye?
No, blind people know the left side exists and move their head to see
How does neglect usually recover?
Spontaneously over a few weeks
How are memory tasks used for studying whether neglect affects mental representations?
Asked to draw something from memory - still seem to neglect left side
When does extinction (mild form) occur?
When 2 or more objects are presented at the same time
What did Rees et al find?
(stimuli presented in visual fields)
Patients - 58/60 stimuli - left visual field only
Both visual fields - 2/60
What are a couple non-spatial deficits in attention?
Longer attentional blink
Poor working memory
Bad sustained attention
