Wed 3 - Ruff - congnitive process

Question 1

what is the default network

Answer 1

Involved	in	
– Daydreaming or mind	
wandering	
– Autobiographical memories	
– Envisioning	the future	
– Moral decisions	

Contrasts with the “task-positve network”
actve when performing specific tasks

Question 2

ventral posterior lateral thalamic nucleus

input and output

Answer 2

input from skin from body via medial lemniscus

output to primary somatosensory cortex

Question 3

Medial
geniculate nucleus

inputs and outputs

Answer 3

input: cochlea
output: primary auditory cortex

Question 4

pulvinar thalamic nucleus

inputs and outputs

Answer 4

in: association cortex and superior colliculus
out: parietotemporal and visual association cortex

Question 5

Medial dorsal thalamic nucleus

inputs and outputs

Answer 5

in: superior colliculus, olfactory cortex, amygdala, ventral pallidum
out: frontal eye fields, anterior cingulate gyrus, limbic system

its involved in attention and multitasking

Question 6

lateral posterior thalamic nucleus

inputs and outputs

Answer 6

association cortex, anterior cingulate, retina

out: parietal and visual association cortex, anterior cingulate, striatum

Question 7

what level is the multimodal thalamic tract in the association cortex?

Answer 7

the fourth…….

Question 8

main function of the parietal cortex

Answer 8

visual attention, localization, spatial relationships, motor programs

Question 9

Two hemispheres of the parietal association cortex

Answer 9

nondominant

• attention
• visuospatial localisation
• spatial relationships (binding elements of a visual scene together in a single image)

dominant

• skilled movements
• right-left orientation

Question 10

lesion in posterior parietal cortex results in

Answer 10

spatial neglect from nondominant hemisphere (forget about half of the “world,” which can be your body, a picture, etc.)

motor apraxias from dominant hemisphere (difficulty in the motor planning of a task, cant produce skilled motions)

Question 11

Ideomotor apraxia

Answer 11

cannot use gestures or tools

Question 12

functions of the superior temporal sulcus

Answer 12

language, social attention

Question 13

function of the inferior temporal cortex

Answer 13

visual object recognition

Question 14

what is agnosia

Answer 14

defect in recognition of objects even though sensory systems are working fine

Question 15

prosopagnosia

Answer 15

cant recognize faces

Question 16

astereognosia

Answer 16

inability to recognize and object by touch alone