Motor Intention VS Motor Implementation- How do we go from intention to implementation?
- There are many different pathways to the same goal
- Observing motor behaviors
- Do we need a brain to stand/walk?
- Physics provides framework, neural components shape the observed motion
- Synergies are a grouping of neuro-muscular constraints for a particular task
- Four variables can describe the neural command for standing balance: CoM position, velocity, acceleration and feedback delay.
- Low-dimension variables mediate input-to-output control
- Solutions are not necessarily energetically optimal
- Optimization is dependent on the criteria selected for minimization.
- More synergies are observed for people with "greater skill"
- Synergies are unique to the individual as the "goal" is a moving target. The goal might mean different things to different people.
Questions- What about inducing postural responses through visual feedback? Doesn't affect APR, so outside of the time period we are studying.
- Visual feedback, how does this affect synergies? Same as above, doesn't affect APR.
- Do the forelimbs and hindlimbs have similar synergies for cats? Would like to check this out.
- How do you get synergies? NMF
|
|