1. The results – The data I collected proved to be very interesting and rather unexpected. From looking at my results, it can be seen quite clearly that the score for using one eye is not always a lower score than the score for using two eyes. This completely goes against my prediction and it is a very different result from the preliminary results. There are multiple samples where the difference between the binocular and monocular vision is a negative value, meaning that the monocular value was higher. This shows some evidence that the level of scintillation does not necessarily decrease when only using one eye. On the right is a table and a graph showing the average score for all the data I collected. It can be seen that the average score for both eyes compared to either the average score for the left or right eyes is very similar. My results show that clearly that there is a significant difference between monocular and binocular viewing at the population level. This means it is averaged across people, but this doesn’t mean that everyone is guaranteed to judge binocular more scintillating than monocular. How we carried out the experiment The main objective behind my experiment is to determine if there is a difference in performance when using one eye compared to two eyes. To measure the ‘performance’ of the candidates, I asked them to score the level of scintillation out of ten, with ten being the highest. I gave each of the candidates a pair of glasses to put on. There were three glasses, one pair allowed both eyes to see, one pair only allowed the right eye to see and the final pair only allowed the left eye to see. I devised a ‘random order’ which determined the order that the volunteers put the glasses on. With each pair of glasses on we would ask the volunteers to give a score out of 10 for the level of scintillation with 10 being the highest (lots of scintillation). To collect this data we went down to the Centre for Life and we had a stand there. We managed to get a large amount of data from all the willing volunteers at the Centre for Life. The Scintillating Grid Illusion Does the illusion appear different when viewing it with one eye instead of two eyes? Conclusion - The results for my experiment proved too be very intriguing and valuable and there were several unexpected results. These results provide strong preliminary evidence that the viewing of the scintillating grid illusion is strengthened by binocular vision. Currently we do not know why this is and it could be a very interesting topic to research in the future. What is the Scintillating Grid Illusion The scintillating grid illusion is an optical illusion. The illusion itself is a solid black background with a grey grid on. The grid has superimposing white discs on the intersections of the grey bars. The background to this poster is a perfect example of the Scintillating Grid Illusion When just observing the illusion, dark dots seem to appear and disappear rapidly at random intersections. However, when a person keeps his or her eyes directly on a single intersection (white spot) the scintillating dark dot does not appear. The dark dots disappear if you are too close to or too far from the image. 4.25