Chapter Two Flashcards
Action preparation
Occurs between action intention and initiation of movement
Kinesthetic sense
Ability to judge where one’s limbs are in space
Vestibular sense
Ability to compare one’s bodily position to the upright position
Perception
Process by which meaning is attached to sensory information
Ecological approach
Relationship between perception and action as circular and dynamic
Affordances
Action possibilities of the environment/task in relation to the perceiver’s own capabilities
Sensation
Process of receptors detecting stimuli and that information reaches the cerebral cortex and its perceived and acted on
Direct perception
Information in the stimulus (optic) array
Optic flow
Patterning of light rays moving across the retina that supplies information concerning speed and direction of the movement of objects in our vision
Reaction time
Brief time lag between stimulus presentation and response initiation
Choice RT
Reaction time resulting from a situation that involves a choice as to how to respond
Hick’s law
Choice reaction time logarithmically related to the number of response choice alternatives
Movement time
Interval between initiation and completion of movement
3 types of reaction time
Simple, choice, discrimination
Increased ____ leads to delayed or inaccurate responses
Uncertainty
3 types of anticipation
Event anticipation, temporal anticipation, precues
Foreperiod
Interval of time between presentation of a warning signal and the stimulus
Ex of foreperiod
Ball toss before a tennis serve
S-R compatibility
Extent to which a stimulus and its required response are naturally related
Stroop effect
Refers to the delay in reaction times between congruent and incongruent stimuli
