open and closed loop motor control Flashcards
the instruction are structured in advance and are executed without regard to the effects that they may have one the environment
open loop control
movements that occur so rapidly that they cannot use sensory feedback to alter the movement
programmed
open loop control
restructured set of central commands capable of carrying out movement
individuals who cannot receive sensory info can still perform some skilled movements
motor program
open loop sensory info before movement
must know initial position of body to complete movement
open loop sensory info during movement
error may be monitored and used to modify future movement
open loop sensory info after movement
change technique based on feedback
types of errors
error in program selected
error in program executed
from a misperception of the environment of an error in the selection of the goal
error in program selected
from and unexpected difference or alteration int he environment
error in program execution
the system can receive and process feedback info
closed loop control
invariant features of generalized motor program
the order of events
the relative timing of the components of the movement
the relative force of the components
parameters of generalized motor program
duration of the movement
overall force that will be required
selection of muscles to complete the movement
receptors that provide information about movement of objects in the environment
exteroceptors
exteroceptors
vision
auditory
smell
information about your own movement
proprioceptors