23-Motor3 Flashcards

1
Q
A

true

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2
Q

Lesions in hand area of primary motor cortex produce

A

impaired digit control

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3
Q

Lesions in hand area of premotor cortex produce

A

impaired reaching

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4
Q
A

true

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5
Q

Overall order of importance of different movement encodings

A
  1. Direction
  2. Velocity
  3. Position
  4. Acceleration
    (but varies for different cells)
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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
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7
Q

PMd

A

dorsal premotor cortex

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8
Q

PMd is involved in (x2)

A
  • simultaneous preparation for multiple potential actions
  • integrates motor and visual information during reaching
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9
Q

PMv

A

ventral premotor cortex

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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
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11
Q

Mirror neuron system located in ___

A

lateral/rostral portion of PMv (F5)

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12
Q

Areas involved in motor sequences (x2)

A

SMA and preSMA

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