parietal lobe

Question 1

how is the parietal lobe organized?

Answer 1

1)Anterior parietal lobe
-(Primary somatosensory cortex)
Somatic sensations and perceptions
Tactile, position of own limbs

2)Posterior parietal lobe:
Integration info from somatic and visual areas to control movement
Eye movements
Reaching
Grasping
Involves spatial information
-(Posterior parietal cortex (posterior zone)
secondary somatosensory cortex)
-(polymodal cortex input from more than one sensory modality Visual and sensory) (humans particularly show extended polymodal area in posterior parietal cortex
-This area receives both somatosensory, visual, and auditory input and leads to integration of different sensory modalities; larger on R than on L side.)

Question 2

what symptoms can u have with lesions in the anterior parietal lobe?

Answer 2

Somatosensory symptoms

Question 3

what symptoms can u have with lesions in the posterior parietal lobe?

Answer 3

Balint syndrome
Contralateral neglect (right)
Gerstmann syndrome (left)
Apraxia
Spatial cognition

Question 4

what is Astereognosis?

Answer 4

Not able to recognize an object by touch

Question 5

what is extintion?

Answer 5

.a type of somatosensory agnosia
-Not able to see two identical objects, but able to see two different objects(agnosia)
-Not able to feel touch on both sides of the body

Question 6

what are the other somatosensory agnosias?

Answer 6

Asomatognosia
loss of knowledge or sense of one’s own body

Anosognosia
Unawareness on ones own illness

Finger agnosia
Unable to point to or show their fingers