However, it is not yet clear how body size perception may be affected when the internal body representation is manipulated. Inaccurate perceptions, such as under- or over-estimation of body size are often found in clinical eating disorder populations but have recently been shown also in healthy people. Attentional propensities tended to be guided by image features over the effects of mere perspectival registration. The study found that while differences in viewing behavior were evident within discrete image counterparts and various forms of analyses, perceptual trends regularly converged toward an even balance across testing stimuli. Eye-tracking recordings were analyzed in the aggregate in order to examine cumulative viewing behaviors. In order to quantify differences of perception, a number of analyses were conducted, including density-based cluster analysis to determine areas of heightened visual regard, Voronoi subdivision which allowed for comparison of overall fixation areas, comparisons of fixation durations, image preference tests, and verbal comparisons. Participants viewed images of buildings rendered in one of two variants, either with parallel or convergent vertical lines. This paper examines the correlation between vertical perspectival convergences in architectural images and their perception by monitoring the eye movements of subjects using eye tracking.
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