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Flashcards in exam 2 Deck (33)
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1

what movements are characterized by tactile sensory information? (3)

-movement accuracy
-movement consistency
-movement force adjustment

2

proprioceptors / types- receives info from sensory neurons (3)

-muscle spindles
-Golgi tendon organs
-joint receptors

3

surgical deafferentation

afferent neutral pathways associated with movement of interest have been surgically removed or altered

4

tendon vibration

high speed vibration of the tendon of the agonist muscle- proprioceptor feedback distorted

5

the moving room experiment

participants stood in room where walls moved but the floor didn't- conflicted between vision and proprioception

6

Fitt's law

model of human movement predicts that the time required to rapidly move to a target area is a function of the distance to the target and the size of the target

7

prehension

action involving reaching for and grasping objects. 3 components: transport, grasp, object manipulation

8

asymmetric bimanual coordination

2 arms moving with DIFFERENT spatial and/or temporal characteristics

9

symmetric bimanual action

2 arms moving with the SAME spatial and/or temporal characteristics

10

rhythmic structures of gait (2)

-components of step cycle
-rhythmic relationship between arms and legs

11

reaction time

preparation time requires to produce action

12

attention

focused on the signal

13

Hick's law

1. RT increases as the number of stimulate-response choices increases
2. predictability of the correct response choice (RT decreases as predictability of the correct response choice instead)

14

Kahneman's model of attention

-arousal level: the factor that influences the amount of attention capacity for a specific performance situation
-evaluation of attention requirements of multiple tasks to be performed
1. ensure completion of least one task
2. enduring disposition: involuntary attention allocation
3. momentary intensions

15

central capacity theory

propose one central source of attention resources for which all activities requiring attention compete

16

multiple resource theory

-propose that we have several sources for attention
-each source has a limited capacity of resources
-the multiple sources based on specific information processing component
-sensory input
-response output
-type of memory code

17

automaticity

performance of a skill without requiring attention resources
In kahneman's theory, relates to evaluation of task demand

18

automaticity of task performance

-related to amount of practice
-practice is directly associated with automaticity

19

feature integration theory

-initially search according to specific features (color, shape)
-direct "attentional spotlight" on environment (wide narrow focus)
-features of interest "pop out"

20

tactile sensory receptors

are in the fingertips

21

stroop effect

spatial arrangement of stimuli and their associated response mechanisms

22

cocktail party effect

-dependent on the meaningfulness of the event/situation
-enduring dispositions: involuntary attention allocation

23

foreperiod

RT increases/decreases as a function of the length and the regularity of the length of the RT foreperiod (interval between warning and go signals)

24

movement time

-RT increases as amount of complexity of the action increases
-first demonstrated by classic experiment by henry and rogers

25

psychological refractory period

-delay of response to 2nd stimulus is called the psychological refractory period
-relate o a situation in sports involving a "fake" movement followed by the intended movement as the 2 stimuli and the other player's responses as the 2 responses

26

enduring dispositions

1. involuntary attention allocations
-novel for the situation
-meaningfulness of the event (cocktail party phenomenon)

27

binocular vision

depth perception when 3 dimensional features involved in performance situation

example: grasping objects; walking on a cluttered pathway; intercepting a moving object

28

central (foveal vision)

- 2-5 degree visual field
-provides specific information to allow us to begin action goals but is mainly for vision
perception; specific characteristics info

29

race decay

working memory LTM

30

proactive interference

working memory LTM