Jeff Weiler

@Jeff_Weiler

Dad - husband - movement neuroscientist - formerly athletic

London, Ontario
Vrijeme pridruživanja: srpanj 2010.

Tweetovi

Blokirali ste korisnika/cu @Jeff_Weiler

Jeste li sigurni da želite vidjeti te tweetove? Time nećete deblokirati korisnika/cu @Jeff_Weiler

  1. proslijedio/la je Tweet

    YES! We’ve done it. has qualified for with a 3⃣ set victory over Puerto Rico in (25-21, 25-15, 25-15). The are off to Tokyo !

    Poništi
  2. 8. sij

    Our findings demonstrate that spinal circuits can help efficiently control the hand during dynamic reaching actions, and show that efficient and flexible motor control is not exclusively dependent on processing that occurs within supraspinal regions of the nervous system (11/11)

    Prikaži ovu nit
    Poništi
  3. 8. sij

    This means there is a spinal circuit that, 1) integrates info from the wrist and the elbow, 2) knows how this joint info and the arm’s orientation maps onto the hand’s movement in space, 3) produces appropriate elbow muscle activity that moves the hand to the target (10/11)

    Prikaži ovu nit
    Poništi
  4. 8. sij

    We found that changing the arm's orientation diametrically altered how spinal reflexes in the triceps were evoked, and in such a way that were again efficiently scaled to the hand's distance from the reaching target (9/11)

    Prikaži ovu nit
    Poništi
  5. 8. sij

    In the next exp participants made the same reaching movement and we applied the same mechanical perturbations, but we changed their arm orientation, which diametrically altered how the rotation of the wrist moved the hand towards the target. (8/11)

    Prikaži ovu nit
    Poništi
  6. 8. sij

    We also found that the spinal reflexes evoked in the triceps muscle were not proportional to how much the elbow was flexed – and thus how much the triceps was stretched - but instead were efficiently scaled to the hand’s distance from the reaching target. (7/11)

    Prikaži ovu nit
    Poništi
  7. 8. sij

    We found that the perturbations that moved the hand furthest from the target did so with the least amount of elbow flexion and perturbations that moved the hand towards the target did so with a large amount of elbow flexion (6/11)

    Prikaži ovu nit
    Poništi
  8. 8. sij

    We had participants reach to a target that required them only to extend their elbow and on a subset of trials we applied mechanical perturbations the moment they began their movement. These perturbations flexed the elbow, and simultaneously flexed or extended the wrist (5/11)

    Prikaži ovu nit
    Poništi
  9. 8. sij

    That result opened the door for us to address other questions. In this work we asked whether the efficient spinally-mediated stretch reflexes that help maintain the postural position of the hand can also support the efficient control of reaching (4/11)

    Prikaži ovu nit
    Poništi
  10. 8. sij

    The tuning of these reflexes is an efficient way to re-establish the hand’s position in space. This was surprising bc many believe the output of spinal circuits – stretch reflexes – only attempt to regulate or re-establish the angular position of individual joints (3/11)

    Prikaži ovu nit
    Poništi
  11. 8. sij

    Last year we showed that there is a spinal circuit that processes sensory feedback from the muscles of the wrist and elbow, and then generates stretch reflexes in elbow muscles tuned to how far the hand had been moved from a static position (2/11)

    Prikaži ovu nit
    Poništi
  12. proslijedio/la je Tweet
    5. sij

    Reminder that I'm looking to recruit two graduate students for Fall 2020, either in human motor control or in NHP ephys and calcium imaging. These positions are fully funded. Email me if you're interested. Please share widely.

    Poništi
  13. proslijedio/la je Tweet
    18. stu 2019.
    Prikaži ovu nit
    Poništi
  14. proslijedio/la je Tweet

    . There was a mistake in tonight's Final , is actually correct.

    Poništi
  15. proslijedio/la je Tweet

    I was proud to work with Justin Trudeau as President. He's a hard-working, effective leader who takes on big issues like climate change. The world needs his progressive leadership now, and I hope our neighbors to the north support him for another term.

    Poništi
  16. proslijedio/la je Tweet
    Poništi
  17. proslijedio/la je Tweet

    Andrew Scheer's Conservative campaign is restricting reporters questions by not allowing follow-ups in some cases. They took the mic away from me and today for our second questions on his candidates.

    Poništi
  18. proslijedio/la je Tweet
    2. lip 2019.
    Poništi
  19. proslijedio/la je Tweet

    Powerful, raw & honest message about team sports that I really appreciated JJ Redick sharing with me after tonight’s loss, even fighting back tears. “The beauty of team sports is having connections with other people. It’s what makes our game beautiful...”

    Poništi
  20. proslijedio/la je Tweet
    9. tra 2019.

    there were literally hundreds of mavs and arena employees lined up to welcome Dirk to tonight’s game

    Prikaži ovu nit
    Poništi

Čini se da učitavanje traje već neko vrijeme.

Twitter je možda preopterećen ili ima kratkotrajnih poteškoća u radu. Pokušajte ponovno ili potražite dodatne informacije u odjeljku Status Twittera.

    Možda bi vam se svidjelo i ovo:

    ·