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Flashcards in Chapter 8 Deck (13)
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1
Q

action preparation

A

the activity that occurs between the intention to perform an action and the initiation;

aka motor programming

2
Q

Hick’s law

A

law of human performance stating that RT will increase logarithmically as the # of stimulus-response choices increases

3
Q

cost-benefit trade-off

A

the cost (slower RT), and benefit (faster RT) that occur as a result of biasing the preparation of an action in favor of one of several possible actions

4
Q

stimulus-response (S-R) compatibility

A

spatial arrangement of stimuli and the limb movements required to respond to them, and the physical characteristics or meaning of a stimulus and the type of response required.

The degree of compatibility influences the amount of preparation time in a reaction time task involving stimulus and response choices.

5
Q

Stroop effect

A

a type of stimulus-response compatibility situation in which a color’s name and ink are these same or different.

RT for saying the word is faster when both are the same color than when the word is a different ink color

6
Q

foreperiod

A

in a reaction time paradigm, the time interval between a warning signal and the go signal, or stimulus

7
Q

psychological refractory period (PRP)

A

a delay period during which a person seems to put planned action ‘on hold’ while executing a previously initiated action

delay of response to 2nd signal

8
Q

vigilance

A

maintaining attention in a performance situation in which stimuli requiring a response occur infrequently

9
Q

precue

A

an advance indication that an upcoming event will require a response

10
Q

Predictability and RT

A

RT decreases as the predictability of the correct response choice increases

11
Q

RT and foreperiod

A

RT decreases when interval between warning and go signal is more regular

12
Q

limb performance characteristics

A

movement direction, movement trajectory, end-point accuracy

13
Q

object control characteristics

A

force control, end-state comfort control