Posterior Dementias

 

Brazis - good text

 

Dysfunction of association areas.

 

Dorsal pathways - "where?"

Ventral pathways - "what?"

 

Cortical sensory loss

- graphesthesia

- 2 point

- stereognosis

- joint position

 

Cortical auditory dysfunction

- disturbed understanding of a sound

- disturbed threshold

 

Ideomotor apraxia - can't do part of activity

Ideation apraxia - can do parts but not combos

 

Gerstmann's syndrome

- acalculia

- right-left

- Finger agnosia

- Agraphia

 

Balint's syndrome

- simultanagnosia

- optic ataxia

- ocular apraxia