Motor Programme Flashcards

1
Q

Advantages of open loop control

A

Rapid movements
Little attention needed
Useful in stable and predictive environments

Free attention for other task

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2
Q

Negatives of open loop control

A

Not sensitive to the outcome of the goal

No modification can be made while the action is in progress

Inflexible with unexpected change

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3
Q

What is the motor programme?

A

Centrally locates structure that defines essential details of skilled actions (Schmidt 1991)

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4
Q

What are the effect of practise?

A
  • leads to learning of skilled action

- development of new precise, stable and longer motor programme

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5
Q

What are the effects of mechanically blocking a limb?

A

EMG continues unchanged

Motor programmes must be performed and sent as a package

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6
Q

What are 5 things that a motor programme contains?

A
  1. Participating muscles
  2. Temporal sequence
  3. Force needed to contract
  4. Duration of contraction needed
  5. Times between contractions
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7
Q

What adjustments can affect a motor programme?

A

Change sequence
Change timings
Change force
Time between

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8
Q

What is GMP?

A

Generalised motor programme

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9
Q

What are 2 problems with motor programmes?

A

Storage and Novelty

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10
Q

What is a generalised motor program

A

Schmidt propose GMP controls a class of actions rather than specific movements or sequences.

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11
Q

In 2003 what was the invariant feature/parameter that Schmidt proposed

A

Reaction time and force component of the skills and the order of the skills

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12
Q

What parameters just the general motor program have

A

The overall force and duration of muscles used

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13
Q

What are the two evidences for GMP

A

Common out but using different muscle groups

Acceleration patterns when Writing

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14
Q

What is a schema?

A

A Rule or a set of rules that serve to provide a basis for decision

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15
Q

What is the schema theory?

A

It is the theory that there is a relationship between all information and how the GMP operates.

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16
Q

Feedback is ongoing and characterised by?

A

Executive decision making about errors

Error signal

Effector system for carrying out decision

17
Q

What are the limitations in feedback control?

A

Reaction time interval

18
Q

What are the three types of compensatory loops in reflex modulation?

A

M1
M2
M3

19
Q

What comes under the M1 loop

A

30 to 50 ms

Response to unexpected force

No attention needed

Responsible structures= muscle spindle, monosynaptic stretch reflex

20
Q

What comes under the M2 loop?

A

50 to 80 ms

Response to force and movement

Functional stretch reflex

No attention needed

In flexible response

21
Q

What comes under the M3 loop

A

120 to 180 MS

Reaction time response

Effects all muscles

Conscious of feedback

Attention demanding

22
Q

What are the two errors from closed-loop movement

A

Response selection

Response execution