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Motor Control & Learning > Chapter 3.2 > Flashcards

Chapter 3.2 Flashcards

1
Q

What information is derived from sensation?

A
  • Afferent
  • Movement-produced feedback
  • exteroception
  • proprioception
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2
Q

What is afferent information?

A

Information used to regulate movement

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3
Q

What is movement produced feedback?

A

information resulting from movement

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4
Q

What is exteroception?

A

information from outside the body

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5
Q

What is proprioception?

A

Information from inside the body

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6
Q

What is closed-loop control?

A

A type of control that involves the use of feedback and the activity of error detection and correction processes to maintain the desired state; used to control slow, deliberate movements.

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7
Q

In the closed-loop control model, what is a task goal maintained by?

A

feedback
error detection
error correction

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8
Q

What component of the closed loop control system determines actions necessary to maintain the desired goal state?

A

the executive component

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9
Q

What component of a control system carries out the desired action?

A

The effector

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10
Q

What provides information from the various sensors about the current state?

A

feedback

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11
Q

What is the error-detection mechanism contained in the closed-loop system that compares the desired state to the feedback of the actual state?

A

the Comparator

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12
Q

Who founded the closed loop theory?

A

Jack Adams

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13
Q

What skills does closed-loop control work best for?

A

Continuous - time to provide feedback

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14
Q

Can closed loop control work for a batter trying to hit a ball?

A

Sometimes

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15
Q

How long is reaction time?

A

160-190msec for skilled athlete

200-250msec for average

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16
Q

What are the latencies of correction for each MSR?

A

M1: 30-50msec
M2: 50-80msec
M3: 120msec +

17
Q

What is the latency for M1 response?

A

30-50msec

18
Q

What is the latency for M2 response?

A

50-80msec

19
Q

What is the latency for M3 response?

A

120 + msec

20
Q

What occurs during the M1, monosynaptic stretch reflex?

A

1) muscle stretched
2) 1a afferent nerve fires
3) signals alpha motor neurons in muscle (single synapse
4) same muscle contracts (autogenetic)

21
Q

What occurs in the M2, Long Loop Reflex?

A

1) muscle stretched
2) 1a Afferent fires
3) signals to higher centers
4) back to alpha motor neuron
5) same muscle activates

22
Q

What is a triggered reaction?

A

A relatively complex, coordinated reaction to a particular stimulus, with a latency of 80-120ms. Flexible, yet faster than the M3 response.

23
Q

What is the M3 response called?

A

The voluntary reaction time response

24
Q

What is the latency for the triggered reaction response?

A

80-120msec

25
Q

What are the four essential components of any closed loop control system?

A

Executive
Effector
Feedback
Comparator

Motor Control & Learning (11 decks)

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