Frontal Lobes Flashcards
The paradox of frontal lesions
Formal testing = normal performance
Clinical testing = personality change, failures, forgetfulness
A dorsolateral lesion of the brain impairs… and is… lateralised
Planning
Utilisation of errors
Flexible thinking
Left
A orbital lesion of the brain impairs… and is… lateralised
Inhibition
Shifts of interest
Personality changes
Bilaterally
A medial lesion of the brain impairs… and is… lateralised
Initiation
Spontaneity
Biliterally- or lesions with anterior cerebral arteries
Damage to which brain area results in Korsakoff type amnesia with confabulation?
Medial
Fronto-striatal loops start at.. pass through either the… or the… and go to the… which goes to the start
Cortex
Striatum
Substantial migration/ globus pallidus
Thalamus
Name Luria’s definitions of problem solving
Replacing an automatic action with a deliberate one
Two tests of problem solving
Luria:
18 books and two shelves
Walsh:
Van and cargo
Why is executive function hard to assess?
Complex by nature Easy to fail Invalid if basic function impaired Invalid if external source acts as frontal lobe Poor intercorrelation Poor localisation
What are the four general features seen in brain injured patients doing tasks?
Perseveration
Concrete thinking
Dissociation between words and actions
Impaired awareness of deficit
To test planning ability, five tests you could use are…
Ray complex figure Block design Picture arrangement Cognitive estimates Tower of London/Hanoi/Socks of Cambridge
To test set shifting, the three tests you could use are…
Trail making
Weigl Colour form sorting
Winsconsin Card sorting task
To test inhibition, there are seven possible test. Name as many as you can.
Hayling task (impossible ending) Stroop task Go/no go Luria’s red green squeeze Paced audio serial addition task Inappropriate responses Verbal fluency
Name five tests to asses error monitoring skills
Austin maze C/R auditory verbal learning task Six element test Digit span Figure cancellation
Phineas Gage has lesions in
Ventral- medial lesions
