Saturday, April 22, 2006

Maze tracking

This is just a small example and it is unfortunate that the quality of the video is quite low and the change in colour between the different sections of the exploration cannot be clearly seen. I wanted a small file for now and I am still trying to figure out what is the best compression method. If you right click on the actual movie and select "full screen" you will be able to get a better image and differentiate between the various sections of the track.

The animation`was created with the tracking analyst extension in Arcmap. It shows the exploratory pattern of a visually impaired subject in the second experiment of my research. This subject's exploration lasted for 13:46 minutes (the animation takes 2 minutes) and it was broken up in seven different sections (the X in the animation indicate each section break). The idea is to comapre the strategy(s) used by the different subjects in each of these sections (and also for the whole exploration) and relate it to their performance in a series of spatial tasks.

I am still trying to isolate the possible wayfinding strategies that a subject may use during exploration. For the moment it is quite clear tha for the first two sections the subject in the video used a "perimeter" strategy and was able to locate the six different tables in the maze. During the 3rd and 4th section the subject retraced his steps along the perimeter making sure all tables were revisted. For the remaining time the subject used an "object to object" strategy between the tables in the southern part of the maze.


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