Cortical Lesions

Question 1

Presentation of frontal lobe lesions? - 3

Answer 1

Personality changes - apathy, disinhibition
Hemiplegia
Expressive aphasia

Question 2

Presentation of temporal lobe lesions? - 3

Answer 2

Memory impairment.
Wernicke’s aphasia, especially if a dominant hemisphere (usually left).
Upper homonymous quadrantanopia.

Question 3

Presentation of parietal lobe lesions? - 3

Answer 3

Calculation problems.
Perceptual/spatial problems.
Apraxia: a disorder of motor planning.
Homonymous hemianopia or lower homonymous quadrantanopia.
Hemispatial neglect. Usually, a right lesion causing left visual neglect.
Hemisensory loss.
Nominal aphasia.

Question 4

Presentation of occipital lobe lesions? - 3

Answer 4

Visual changes.

Field defects including hemianopia or quadrantanopia.