Lec 15

Question 1

What is an association cortex

Answer 1

integrates info from different brain regions

Question 2

unimodal association cortex

Answer 2

area adjacent to primary area

process for only one sense or area

Question 3

multimodal association cortex

Answer 3

integrate many modalities

process for multiple sensory or motor systems

Question 4

pre motor cortex does what

stimulation of this area causes what

Answer 4

coordinate musc actions - across multiple joints at same limb

prepare voluntary movement

muscle contrations

Question 5

pre motor neurons are specific to what (2)

Answer 5

direction and joint - diff parts will move diff things and diff joints

Question 6

lesions to premotoe cort cause what

Answer 6

inability to initiate movement to external cue or coordinate multi-joint movements

Question 7

what does supplementary motor area do?

how can it be activated (all ways)

Answer 7

-Plan and program sequence of movements across limbs -e.g. piano play
- bilateral coord of movement

activate by planning and executing movement

activate by imagining doing movement

Question 8

lesions to supplementary motor area cause what

Answer 8

• Deficit in bimanual coordination
• inability to perform complex movement sequences

remember monkey study

Question 9

what is agnosia

Answer 9

loss of meaning. E.g. visual form agnosia, see shapes colours, lines etc. but not able to tell what stuff is.

must test language areas of brain to tell as well (so its not a language defect