Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Stack #2490425
| Question | Answer |
|---|---|
| Exteroception provides information to the processing system about __________. | the state of the environment |
| Which of the following does not provide proprioceptive information to a performer? | optical flow |
| All of the following regarding closed-loop control are accurate except | the system involves error correction without the use of feedback |
| The M1 feedback loop is at a low level in the spinal cord and does not involve __________. | involuntary control |
| Feedforward information represents __________. | anticipated sensory consequences |
| Visual information, useful for object identification and control of movement in the visual environment, travels from the retina to which part of the brain? | primary visual cortex |
| The change in the information provided by the optical array is called __________. | optical flow |
| Saccadic eye movements are characterized by __________. | brief fixations and rapid shifts to a different location |
| In the size-weight illusion, which of the two opaque containers of the same weight does the lifter perceive as heavier? | the smaller one |
| Dorsal vision is used to make __________ in already programmed actions. | minor adjustments |
| ___________ is thought of as building new, more stable, more precise, and/or longer-operating motor programs | Practice |
| Experimenters have shown that RT can be affected by movement task characteristics that influence the complexity and duration of the __________ stage | movement programming |
| The major roles of open-loop organizations in motor programs include all of the following except | prevent postural adjustments in preparation for action |
| For a quick pointing movement made with the arm while standing, the first muscles to activate are the __________. | lower back and legs |
| This type of control system sends centrally determined, prestructured commands to the effector and runs without feedback. It is used for rapid, discrete movements. | open-loop control |
| Evidence for motor programs includes all of the following except | tracking tasks |
| ____________ is a centrally located control mechanism that produces genetic, repetitive actions; it is similar to a motor program and triggered by some stimulus and seems to use patterns for activation | novel tasks and storage problems |
| ____________ theory suggests that there is a stored pattern of movement instead of a specific movement. It allows flexibility in modifying the generalized program to produce various patterns to meet the demands of the task | Generalized motor program |
| Fitts' Law states that __________ is linearly related to index of difficulty (ID). | movement time |
| Fitts' Law tells us all of the following except | MT decreases as movement amplitude increases |
| Effective target width is a measure of __________. | accuracy |
| When a person attempts to produce the same force on repeated trials, __________ is thought to be caused by relatively noisy processes that convert central nervous system impulses into activation of muscle motor units | variability |
| A(n) __________ coordination pattern is more stable. | in-phase |
| ____________ is the type of accuracy required of rapid movements in which accuracy of the movement time is important to the performance | Spatial accuracy |
| is the spread, or variability, of a person's movement end points about their own mean position for repeated attempts of a rapid aiming task | Spatial accuracy |
| While a novice moves her head in the same direction as the putter, an expert moves her head _________ during a golf putt to deal with the "head problem." | slowly in the same direction of the putter |
| Investigators from the __________ perspective state that the regularities of movement patterns are not represented in programs but emerge naturally out of the complex interactions among degrees of freedom. | black box |
| SENSORY INFORMATION THAT PRIMARILY COMES FROM SOURces outside of a person's body is called | exteroception |
| proprioception is | information about the state of the body itself |
| this visual system is used to detect the orientation of the body in the environment, is unconscious , and takes in all of the visual field | dorsal vision |
| this visual system is used to identify an object in the center of visual field,is conscious leads to identification, and is affected by lighting. | ventral vision |
| This form of visual control detects movement of patterns of light rays from the environment and allows a person to perceive motion, position, and timing | optical flow |
| studies of tracking suggest that the system of closed-loop control can produce corrections at a maximum rate of about ________ per second | 3 |
| light and nerve impulses associated with vision travel to the cortex via following route | cornea-pupil-lens-retina- light sensory receptors-optic nerve-occipital lobe |
| give example of 2 movements most likely be controlled by the same generalized motor program | writing name with dominant hand or writing with mouth |
| what are invariant feature of information about the state of the body itself | dont change. relative timing, amplitude, order of events |
| what are the parameters in information about the state of the body itself | change, overall timing,amplitude, muscles used |
| how do you calculate index difficulty in fits law | Log2(2a/w) |
| in motor behavior terms, a degree of freedom can be defined as | seperate movements that needs to be controlled |
| major role of motor program | carry out an action |
| why was generalized motor program developed | novelty problem - new shortage problem - solved b/c we move in classes (throwing is throwing) |
Created by:
omgitsspeedyy