Announcements- SfN - October 17-29
- Look at other funding sources
- Get a budget ($220 plane ticket)
- Banff - November 8-13
- Look at getting plane tickets
- Look at Torrence's papers due by next week
- Find the Vicon Key
- Need to make an assesment on data storage
- BUGGS is doing a carnival tomorrow.
- Adobe CS 4 - be on the look-out.
PresentationJulia- How does the nervous system affect the movement of the body?
- Now try and look at how the mechanics of the body affect the nervous system!
- How does stance width affect balance control?
- Relevance: Parkinson's patients have a much narrower stance.
- Do initial biomechanical conditions affect postural responses to maintain stability?
- CoM is tightly controlled, because excursion is the same between narrow and wide stance (Henry et al 2000).
- EMGs do not scale between stance widths for Parkinson patients.
- Parkinson patients apply the same level of force for different stance widths
- For Jeven's standard figure plot stiffness in a more readable format
- Do feedback gains change between different stance configurations?
- A prediction is that stance width will change the gains.
- The EMG activity in TFL goes down with increasing stance width.
- Peak CoM velocity and acceleration goes down with increasing stance width
- Hypothesis: Balance control in standing can be modeled as feedback control of the CoM motion where the gains related to acceleration and velocity changes with initial biomechanical conditions (stance width).
- Explicit model vs abstract model - both should ultimately lead to a similar result.
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