Seeing and feeling volumes: The influence of shape on volume perception

Estimate or calculate? How surgeons rate volumes and surfaces

“…Furthermore, the correlation analysis of individual absolute estimation errors demonstrated that the tendency to over-or underestimate strongly was more dependent on the individual who was estimating than on factors related to the objects so that the tendency towards under-or overestimation among individual participants remained stable. These results support the findings of Kahrimanovic and co-workers who recently published that visual volume perception of different objects is subject-dependent [23]. Therefore, the results of the first part of our investigation can be seen in a scientific context and is representing more than just a funny study.…”

“…We want to emphasise, however, that the design of the study was cross-sectional including all subjects working in daily routine of a surgical department of a university hospital. Furthermore, most studies from behavioural sciences dealing with more complex but basically similar topics have only students included in their scientific experiments [23,26]. To gain more information Fig.…”

Characterization of the Haptic Shape-Weight Illusion with 3D Objects

“…Despite this variation, the correlation analysis in Experiment 1 showed that the subjects performed consistently between conditions. It was expected that the direction of the shape-weight illusion would be consistent between subjects, since the directions of the haptic shape-size [16] and size-weight illusions (see the review in [17]) were fairly consistent between subjects. The large interindividual differences in the present study suggest that the occurrence of the haptic shape-weight illusion with small 3D objects cannot be explained completely by a combination of the results from the size-weight and the shape-size illusions.…”

Human Four-Dimensional Spatial Judgments of Hyper-Volume

“…Previous research has documented a similar effect in lower spatial dimensions. Kahrimanovic, Bergmann, and Kappers (2010) examined the influence of shape on volume perception in both visual and haptic senses. They found shape had a large effect on volume estimation, with tetrahedrons overestimated compared to that of a cube or a sphere, and the cube overestimated compared to that of a sphere.…”