Higher Cortical Function

Question 1

What are the affects of unilateral frontal disease?

Answer 1

• Contralateral spastic hemiplegia
• Slight elevation of mood, increased talkativeness, tendency to joke, lack of tact, difficulty in adaptation, los of initiative
• If entire prefrontal, no hemiplegia; grasp and suck reflexes may be released
• Anosmia with involvement of orbital parts

Question 2

What are the effects of right frontal diseasee?

Answer 2

Left hemiplegia

Question 3

If the entire prefrontal cortex has been damage will there be hemiplegia?

Answer 3

No

Question 4

Wht are the effects of left frontal disease?

Answer 4

• Right hemiplegia
• Motor speech disorder with agraphia, without or without apraxia
• Loss of verbal associative fluency
• Sympathetic apraxia of the left hand

Question 5

What are the affects of bifrontal disease?

Answer 5

• Bilateral hemiplegia
• Spastic bulbar (pseudobulbar) palsy
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Question 6

What are the effects of unilateral disease of the parietal lobe, right or left?

Answer 6

• Cortical sensory syndrome and sensory extintion, or total hemianesthesia with large acute, white matter lesions
• Mild hemiparesis, unilateral muscular atrophy in children
• Homonymous hemianopsia (incongruent) or visual inattention, and sometimes agnosognosia, neglect of 1/2 of the body and extrapersonal space
• loss of opticokinetic nystagmus to one side

Question 7

Whata re the effects of unilateral disease of the dominant parietal lobe

Answer 7

• Disorders of lanuage
• Gertsmann syndrome
• Tactile agnosia
• Bilateral ideamotor and ideational apraxia