This webpage catalogs a series of papers and experimental data (in which I have participated) related to the use of strategy in spatial contexts. Ultimately, the series investigates cataloging the differences and similarities between spatial strategy and strategy in other domains.
| Finding the Invisible Objects | This experiment was designed as a comparitive study to Hill et. al (1993) in which blind subjects were asked to locate and remember the positions of four objects placed in fifteen foot square room. In this case, we constructed a grid of laser sensors to track the location of the subject and provide audio feedback in the form of animal sounds to create "invisible" objects. This allowed us to compare strategic choices of sighted subjects to Hill's blind subjects in a way that did not disable their normal locomotor abilities. In addition to testing sighted subjects, we tested two conditions of blindfolded subjects: one group who were blindfolded after entering the room, and one group who were blindfolded before entering the room. Each subjects completed the task twice under the same condition. In between each trial, subjects were asked to make a physical model of the room and to point to each objects from the start position using a digital compass. The experiment was conducted in partnership with Victor Schinazi. |
| A quick look at shuffling | How many riffle shuffles does it take to randomize a deck of cards? There are a couple of celebrated papers in mathematics dealing with this issue that has strong implications for Markov Chain modeling. I thought I'd take a quick look at the problem. Nothing really new here, but a couple of figures that I hadn't seen. |