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Kinesiology > MOTOR CONTROL > Flashcards

MOTOR CONTROL Flashcards

1
Q

__________________________

  • Uses 15% of total blood supply
  • used 25% of total oxygen
  • 3.5lbs
  • 2.5% of total body weight
  • Blood supply cut off for 15 sec, lose consciousness cut off for 4MIN,
  • brain damage but functions of damaged neurons can be shifted to others.
A

HUMAN BRAIN

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2
Q

The Supplementary Motor Cortex Assists in ?

A

PLANNING OF MOVEMENT

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3
Q

Supplementary motor cortex does two things, what are they ?

A

Finger Movement Sequence (Performance/mental rehearsal)

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4
Q

What are 4 things the Motor Cortex does ?

A
  • ASSIGNS MUSCLES
  • DIRECTION OF MOTION
  • HELPS DEVELOP LEVELS OF FORCE
  • CONTRALATERAL CONTROL
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5
Q

The Somato-Sensory Cortex does what ?

A
  • INTERPRETS SENSORY INFORMATION

- CONTRALATERAL REPRESENTATION

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6
Q

The Cerebellum does What ?

A

Helps coordinate movement

-helps control balance

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7
Q

Cere-Cerebellar Loop (_______________)

A

Every 10 ms

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8
Q

What does the Basal Ganglia do?

A
  • Initiation of movement

- the Intensity of activation produces

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9
Q

__________________

  • bloody supply cut off for 15 SEC, LOSE consciousness cut off for 4MIN, BRAIN DAMAGE.
  • but functions of damaged neurons can be shifted to others.
A

HUMAN BRAIN

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10
Q

The Basal Ganglia produces a neurotransmitter called?

A

DOPAMINE

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11
Q

-

A
  • PYRAMIDAL (CORTICO-SPINAL) TRACT

- EXTRAPYRAMIDAL TRACTS

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12
Q

____________________

-sends Motor commands for voluntary movements

A

PYRAMIDAL (CORTICO-SPINAL) TRACT

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13
Q

______________________

-Balance and posture

A

EXTRAPYRAMIDAL TRACTS

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14
Q

What is the Major AFFERENT Pathway ?

A

DORSAL COLUMN

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15
Q

__________________

- send sensory information to somatosensory cortex (conscious perception)

A

DORSAL COLUMN

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16
Q

_______________

-describes behavior

A

MODEL

17
Q

________

-a stable relationship between two or more Variables

A

LAW

18
Q

____________

-tries to explain behavior, also makes predictions

A

THEORY

19
Q

When a person is given certain input or stimulus, that stimulus affects the persons actions.
What theory is this ?

A

THE BLACK BOX THEORY

20
Q 
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Sensory information (environment/body) is processed in different stages
A

THE INFORMATION PROCESSING MODEL

21
Q

Input> stimulus Identification>Response Selection> response Programming> Output.

A

INFORMATION PROCESSING MODEL

22
Q

High Centers > Spinal Level > Lower Level (sends muscle/joint feedback to the Spinal Level) > Movement (movement sends visual feedback to the spinal levels.

A

Open and Closed Loop Control

23
Q

_______________________

Movement is programmed by muscle commands from the higher centers.

A

MOTOR PROGRAMMING THEORY

24
Q

Programs contain two characteristics:

A

-variant features

Invariant features

25
Q

____________________

-those aspects of movement that change (eg. walking speed)

A

Variant Features

26
Q

____________________

  • Those aspects that do not change.
  • Differentiate different programs
A

INVARIANT FEATURES

27
Q

_____________________

  • The Motor system does not directly control the once of a movement.
  • Rather it controls the THRESHOLD of activation of motor units
  • Both agonist and antagonist muscles can be controlled this way
A

EQUILIBRIUM POINT THEORY

28
Q

___________________

  • Focus on the coordination of movement among, joints muscles or neurons
  • changes in patterns of coordination due to many factors besides higher level influence
  • Order parameters
  • describe the patterns
  • control parameters

-outside variables that induce pattern change

A

DYNAMIC PATTERN THEORY

29
Q

________________

  • time from onset of stimulus to the initiation of the response.
  • (e.g. sprint starts)
A

REACTION TIME

30
Q

_________________

-the time from initiation of movement to its completion.

A

MOVEMENT TIME

31
Q

____________________

The time from the stimulus… to the END of the response.

A

RESPONSE TIME

32
Q

What re the 2 laws Governing Reaction Time and Movement Time?

A
  • HICK-HYMAN LAW

- FITTS’ LAW

33
Q 
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
-Govern behavior PRIOR to movement
>Decision making 
  - Reaction TIme Increases by a nearly constant amount every time the number of (response alternatives) Doubles. 
>Implications..
  -Anticipation
  -Creating uncertainty
A

HICK-HYMAN LAW

34
Q

________________

  • Governs behavior during the movement. Can predict movement time, i.e….
  • how long does it take to complete a movement

-Movement time Increases when:
>Distance traveled is lengthened
-target is small
-both

-In essence, speed must be traded for accuracy. “Haste Makes Waste.”

A

FITTS’ LAW

Kinesiology (13 decks)

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