Effects of Peripheral Vision on Eye Movements: A Virtual by Elena Hitzel

By Elena Hitzel

Elena Hitzel pursues the concept that human gaze destinations are inspired through at the moment non-fixated items which are seen within the peripheral visual view. utilizing eye monitoring apparatus and a digital truth procedure to supply naturalistic initiatives, the writer exhibits that gaze is biased in the direction of a neighboring item, in particular whilst this item is correct to the subject’s present activity. this means that peripheral imaginative and prescient is utilized in the allocation of gaze in everyday life and that this bias might be interpreted when it comes to a compromise among foveal and peripheral details achieve. the advantage of this bias in traditional imaginative and prescient is mentioned within the context of bottom-up and top-down theories.

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Additionally, this effect was only applicable up to 4-6° non-target to target distance, shown by a massive drop of gaze bias for non-targets at a greater angle than this critical value. Besides that, if the non-target stimulus was shown between the fixation point and the target, the bias of the target-directed saccade was stronger than if the non-target stimulus was shown on the outer side of the target. They suggested that this might be due to the more accurate visibility of objects near the fovea.

2001). In a virtual driving task subjects had to either follow a lead car or to follow the lead car while keeping track of the general traffic rules. Contrary to the study by Triesch et al. (2003), the participants knew which task was currently relevant. 27 This can explain why in the study of Shinoda et al. (2001) differences in gaze patterns were found between conditions. Here, scheduling of gaze allocation was affected by the current task, or respectively the cognitive goal of the subject. The results revealed that when subjects had to observe the general traffic rules, they made more fixations towards the side of the road, where traffic signs are visible in real life and towards intersections that they were approaching.

As expected, in the collect targets task more targets than obstacles (which were declared as neutral or task irrelevant in this case) were contacted, while in the avoid obstacles task fewer obstacles than targets (task irrelevant) were made contact to. When subjects had to accomplish both tasks at the same time, that is, both object types are relevant to their corresponding task, more targets than obstacles were contacted. In addition, the number of collected targets was smaller than in the task, in which participants only had to keep track of collecting targets, as was the number of contacted obstacles, which were task relevant in the first but not in the latter.

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Effects of Peripheral Vision on Eye Movements: A Virtual by Elena Hitzel
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