Common Brain Lesions

Question 1

Amygdala

Answer 1

Kluver-Bucy Syndrome - Disinhibited behavior, associated with HSV-1

Question 2

Frontal Lobe

Answer 2

Disinhibition, deficits in concentration, orientation, and judgment, may have reemergence of primitive reflexes

Question 3

Non Dominant Parietal Cortex

Answer 3

Hemispatial Neglect Syndrome

Question 4

Dominant Parietal Cortex

Answer 4

Agraphia, acalculia, finger agnosia, left-right disorientation

Question 5

Reticular Activating System (midbrain)

Answer 5

Reduced levels of arousal and wakefulness (coma)

Question 6

Mammillary Bodies

Answer 6

Wernicke-Korsakoff Syndrome - Confusion, ophtlamoplegia, ataxia
Thiamine (B1) Deficiency

Question 7

Basal Ganglia

Answer 7

Tremor, Chorea, Athetosis

Question 8

Cerebellar Hemisphere

Answer 8

Ipsilateral intention tremor, limb ataxia, loss of balance

Question 9

Cerebellar Vermis

Answer 9

Truncal Ataxia, Dysarthria

Question 10

Subthalamic Nucleus

Answer 10

Contralateral hemiballismus

Question 11

Hippocampus

Answer 11

Inability to make new memories

Question 12

Paramedian Pontine Reticular Formation

Answer 12

Eyes look away from the side of the lesion

Question 13

Frontal Eye Fields

Answer 13

Eyes look toward the side of the lesion