The interval of time between the onset of a signal (stimulus) and the initiation of a response.
What is reaction time?
100
Opening in the eye that lets in light; its diameter increases and decreases according to the amount of light detected by the eye.
What is pupil?
100
Information used by an individual to determine what is the "most important" stimuli present in order to identify if an action is necessary and if so, what the appropriate action should be.
What is input?
100
Form of feedback related to information received from afferent neural pathways providing limb, body, and head movement characteristics.
What is proprioception?
200
The time interval involving both reaction time and movement time: that is, the time from the onset of a signal (stimulus) to the completion of a response.
What is response time?
200
The eye structure that lines the back wall of the eye; extension of the brain, it contains the neuroreceptors that transmit visual information to the brain.
What is retina?
200
A system of motor control in which during the course of an action, feedback is compared against a standard or reference to enable an action to be carried out as planned through adjustments.
What is closed-loop system?
200
Specialized neurons originating and terminating in the brain or spinal cord.
Function as connections between afferent and efferent neurons.
What is interneuron?
300
Time interval prior to the "go" signal (stimulus) but following the warning signal (stimulus).
What is foreperiod?
300
Visual field outside the 2-5 degrees of central vision.
Visual system primarily used to detect movement and movement patterns in low light situations.
What is ambient vision or peripheral vision?
300
A control system in which all the information needed to initiate and carry out an action as planned is contained in the initial instructions and sent to the effectors.
What is open-loop system?
300
Efferent (Alpha) neuron and all the muscle fibers it innervates.
Controls innervation of muscles involved in movement.
What is motor unit?
300
A cerebral cortex area anterior to the primary motor cortex responsible for organization of movements BEFORE they are initiated and rhythmic coordination DURING the movement.
What is premotor?
400
The reaction time when the situation involves more than one signal (stimulus) but only one response, which is only one of the signals; the other signals require no response.
What is discrimination reaction time?
400
Term identifying the time to contact is specified according to the relative rate of change of the size of the image of the object on the retina of the eye.
What is tau?
400
Identify the independent steps (phases) controlled by the "executive".
What are the stimulus identification, response selection, and response programing?
400
Name the lobes of the brain.
What are the frontal, parietal, occipital, and temporal lobes?
400
Term used to define an activity or task that requires voluntary control over movements of the joints and body segments to achieve a goal.
What is motor skill?
500
The proportion, or percentage, of the total amount of time required by each component of a skill during the performance of a skill.
Clue: part of the "invariant features" of a GMP.
What is relative time?
500
Sits behind the iris, is transparent structure that is responsible for allowing the eye to focus at various distances.
What is lens?
500
The middle 2-5 degrees of the visual field.
Responsible for visual acuity.
What is central or foveal vision?
500
A procedure that researchers use to make proprioceptive feedback unavailable (through surgically severing or removing afferent neural pathways involved in movement).
It can also result from injury, surgery, or disease to afferent neural pathways involved in proprioception.
What is deafferentation?
500
Type of error calculation which identifies performance bias from a target.