Abstract
The purpose of this study was to examine differences in change detection between viewings of a short edited film as well as the affect of sound on these change detections. A total of 306 participants were randomly assigned to one of two conditions, one with sound and one without sound, where they watched a short edited film on two consecutive occasions approximately five minutes apart. The results support previous research in the field of change blindness with significant results obtained for both of the conditions within this study. Not only do participants fail to notice large changes to centre of attention as well as arbitrarily placed objects, unless told to watch for changes, but also whether or not sound is present has an affect on participants ability to detect said changes. In this case, participants without the presence of sound detected more changes than those with sound.


