To catch or not to catch: how affordances define catchability of a fly ball

Andel, S. van (Steven) (2013) To catch or not to catch: how affordances define catchability of a fly ball. thesis, Human Movement Sciences.

Text AndelS.van.pdf Restricted to Registered users only Download (13MB)

Abstract

The concept of affordance-based control has been introduced by Fajen (2007a) to make control theories consistent with Gibson's (1986) theory of affordances. In affordance-based control, actors use knowledge of their action boundary for controlling movement. The current study focusses on the use of affordance-based control in fly ball catching. The aim was to find how catching of a fly ball is afforded. In three analyses, this study considered a number of optical variables and assessed their informational value for judging catchability. The change in the optical angle theta (retinal angle between the ball and the horizontal) was found to be informational for decisions of catchability of fly balls. Results showed that when thetadot passed a threshold value, participants judged the balls as not catchable. These results can be the start of future affordance research in fly ball catching and will hopefully add to a general theory of affordance-based control of fly ball catching.

Item Type:	Thesis (Thesis)
Faculty:	Medical Sciences
Date Deposited:	25 Jun 2020 11:07
Last Modified:	25 Jun 2020 11:07
URI:	https://umcg.studenttheses.ub.rug.nl/id/eprint/2676

Actions (login required)

View Item