Parietal Lobe Flashcards
Middle cerebral artery infarcts result in what five things?
Hemiparesis Hemianopia Aphasia (LH) Apraxia (LH) Neglect (RH)
Right hemisphere lesions result in…
Disorders in perception of the space
Recognising objects from different perspectives
Transforming viewpoints
Copying and constructing
Telling fingers apart
Two main geographical relationships
Non local
Local
Three types of spatial relationships
Geographical
Peripersonal (closest thing to you)
Object space (cup or bucket?)
What assesses low level visual?
Visual object and space perception test
Birmingham object recognition battery
Five Visual assessments
Ray complex Drawing WAIS Behavioural inattention test Corsi blocks (spatial memory)
Topographical agnosia
What is it? Is it a spatial disorder? Can they draw a map? Can they recognise famous buildings? Where is the lesion site?
Failure to find way in familiar surroundings
No
Yes
No
Inferior occipital-temporal with prosopagnosia
Topographical amnesia
What is it? Is it a spatial disorder? Can they draw a map? Can they recognise famous buildings? Where is the lesion site?
Failure to find way because of spatial deficit
Yes
No
Yes
(RH) inferior parietal lobule
Unusual views deficit
What is it?
Where is it’s lesion site?
Failure to recognise objects in unusual ways (lighting rotation etc)
Right inferior parietal lobule
What is constructional apraxia, and what tests does it interfere with?
Inability to appreciate the spatial relationship between objects
Drawing or copying
Block design
Construction
Copying
What is hemi spatial neglect?
What can it not be explained by?
Which side is neglected, and which side is the lesion?
How is it measured?
Failure to attend to contralateral side
Hemianopia or other sensory deficits
Left side, after right parietal lesions
Behavioural inattention test
What is directional hyperkinesia?
How is it measured?
Problem initiating hand or eye movements into the left side of space
Bisiach tool
Language disorders are usually lateralised you which hemisphere?
Left
What is known as “fluent” aphasia, affecting comprehension of speech? Where are the lesions?
Wernicke’s aphasia
Posterior superior temporal gyrus
What disorder is like Broca’s but patients can repeat things? Where are the lesions usually located?
Transcortical motor aphasia
Connections between parietal and Broca’s area
