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The influence of shape and culture on visual volume perception of virtual rooms

The ability of humans to apprehend the overall size or volume of an indoor space is not well understood. Previous research has highlighted a 'rectangularity illusion', in which rectangular rooms appear to be larger than square rooms of the same size (identical volume), showing that the subjective perceived space cannot be explained from the mathematical formula for volume, i.e. length × width × height. Instead, the results suggest that one might use the longest dimension of the space as a simplified strategy to assess room size [Sadalla and Oxley 1984].