We will be reading my draft commentary on interface theory from the perspective of ecological psychology. I’m looking for feedback on things to cut, things to clarify, and whether the basic structure works!
Me on the blog developing the ideas in the paper
Today we will all be hosting the 1st Annual (we hope!) Cognitive Archaeology Workshop at Leeds Beckett University.
Following on from Andrew’s recent paper the team is developing several grants and projects around the affordances of throwing in modern and prehistoric times. This workshop is an opportunity for us to all be in the same room for a change, bring each other up to speed on our interests and skills and work on the details of our new collaboration.
Attendees include Andrew, Sabrina and our students Agnes, Dan and Michael; archaeologists Larry Barham and Ian Stanistreet from the University of Liverpool and some of their students; sports scientist Tim Bennett from Carnegie School of Sports; and engineer Ray Holt from the University of Leeds. This is the team needed to do this work properly and it’s going to be a great day!
Andrew has been holed up in the Biomechanics Lab in the Carnegie School of Sport all week with the team collecting data for a new throwing experiment. We are replicating part of Wilson et al (2016); throwers are throwing tennis balls to hit a target at 5m, 10m and 15m. This time, we are collecting enough data (20 hits per distance) to perform uncontrolled manifold analysis (UCM) on the full body motion capture data, turning our attention from the outcome of the throw to the production of the throw.
We are taking advantage of the fully synchronised, integrated set of data collection methods in the Biomechanics Lab and throwing the kitchen sink at this project. We are recording
- full body kinematics from 70 markers at 250Hz
- muscle activity from 16 muscles along the throwing arm and torso using wireless EMG markers
- postural data from two force plates as people take their step to throw
- high speed (250Hz) video of the throw
- high speed (250Hz) video of the impact
Data analysis will happen over the summer with the paper planned for the end of 2017. Stay tuned!