Theories of Motor Control Flashcards
(16 cards)
motor control
Process of initiating, directing, and grading purposeful movement
passive movement
without neural input
floppy movement likely is damage to the…
cerebellum
rigidity is damage to what
basal ganglia
spasticity is damage to what
descending motor tracts
stereotyped movement
rhythmic, repetitive movement in the absence of rhythmic input
reflexive movement
fixed automatic movements in response to specific stimulus
reflex theory
- Reflexes are building blocks of complex behavior
- By chaining together reflexes, more complex movement behavior is achieved
Hierarchical theory
- Nervous system is organized as a hierarchy
- Brain has higher, middle and lower levels of control
Neuromaturational theory
normal motor development is attributed to increased corticolization of CNS
modern hierarchial theory
each level acts on others depending on the task
motor program theory
- one can remove stimulus and still have CPG
- motor programs can be activated by stimulus or central process
- sensory input isn’t essential for driving movement but for modulating it
systems theory
whole body is a mechanical system with mass and subject to external forces and internal forces
dynamic systems theory
-No need for higher center issuing instructions
-Control parameter regulates change in behavior
-Variability is critical to optimal function
attractor well
- Degree of flexibility to change a preferred pattern of movement
-Deep well is harder to change
Stable movement pattern
-Shallow well is easier to change
Unstable movement pattern
ecological theory
actions are geared to environment
actions require perceptual info specific to a goal directed action performed in a specific environment
perception is more important than sensation
