23-Motor3 Flashcards
1
Q
A
true
2
Q
Lesions in hand area of primary motor cortex produce
A
impaired digit control
3
Q
Lesions in hand area of premotor cortex produce
A
impaired reaching
4
Q
A
true
5
Q
Overall order of importance of different movement encodings
A
- Direction
- Velocity
- Position
- Acceleration
(but varies for different cells)
6
Q
General properties of frontal premotor function (x6)
A
- process final stages of visuomotor transformations
- activated during movement preparation
- may specialize in different motor behaviours (e.g. PMd for reaching, PMv for grasping)
- spatial ospects of behaviour strongly represented
- simultaneously prepare for multiple actions
- related to movement of either limb
7
Q
PMd
A
dorsal premotor cortex
8
Q
PMd is involved in (x2)
A
- simultaneous preparation for multiple potential actions
- integrates motor and visual information during reaching
9
Q
PMv
A
ventral premotor cortex
10
Q
PMv is involved in (x3)
A
- specialized for reaching movement (?? Supposed to be grasping ??)
- inputs from VIP
- tactile and visual responses aligned to body part
11
Q
Mirror neuron system located in ___
A
lateral/rostral portion of PMv (F5)
12
Q
Areas involved in motor sequences (x2)
A
SMA and preSMA
