Stephens--Cortical Lesions and Syndromes

Question 1

POT (parieto-occipito-temporal) cortex–does what?

Answer 1

-space travel and maintenance of humans in environment

Question 2

POT region lesions

Answer 2

-space sickness–hallucinations, disorientation or inversion of body image in space

Question 3

frontal lobe syndrome

Answer 3

• easily distracted, unable to plan, tactless, extroverted, without emotional tensions
• apathy, abrupt irritability, socially inappropriate behavior

Question 4

Anterior temporal cortex–involved in? Lesion results in?

Answer 4

• integrating current associations with previous experiences

- visual and auditory hallucinations and clear recollections of past experiences

Question 5

Gertsmann syndrome–lesion where? characteristics?

Answer 5

dominant parietal lobe

-finger agnosia, right-left disorientation, dysgraphia and dyscalcia

Question 6

Agnosia–lesion where? characteristics

Answer 6

lesion of supramarginal area in dominant hemisphere

-unable to recognize or discriminate tactile, visual, auditory, smell or taste

Question 7

denial of body scheme–lesion where?

Answer 7

• somesthetic association cortex (superior parietal lobule)

- failure to recognize the body scheme on opposite side

Question 8

visual agnosia

Answer 8

-unable to visually recognize object or pictures

Question 9

prosopagnosia–lesion where, characteristics?

Answer 9

• lesions in occipito-temporal regions

- bizarre disturbances of fine visual discrimination and ability to recognize extremely familiar faces

Question 10

auditory agnosia–lesion where? characteristics?

Answer 10

• auditory association cortex

- inability to comprehend auditory info

Question 11

80% of strokes occur where?

Answer 11

Internal capsule