[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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Personal space (PS) in virtual reality (VR) may depend on individual characteristics. This study examines the influence of an individual characteristic, "self-consciousness," on PS in VR. The strength of self-consciousness was measured using the self-consciousness scale and PS in VR by the stop distance method for 25 participants. A male and a female avatar were moved in three directions: forward, thirty degrees left, and right. A three-factorial mixed ANOVA of public self-consciousness, the avatars' direction, and the gender difference between the avatars and participants revealed that in the low public self-consciousness group, PS was significantly larger for the opposite gender. This result indicates that resistance to the opposite gender differs in VR. The results of the three-factorial mixed ANOVA for private self-consciousness revealed that its main effect was significant, and PS was larger in the high group, which suggested that the high private self-consciousness group's suspicion was reflected in VR.

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[in Japanese]

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The sense of body ownership has been explored through the full-body illusion (FBI). People with depersonalization tendencies, who struggle with feeling a sense of body ownership, were less likely to experience FBI when cognizing a fake body as their own. Negative cognition of one's own body is thought to decrease the sense of body ownership in depersonalization cases, but this has not been confirmed. In this study, we investigated the effects of negative body cognition on sense of body ownership and its relation to depersonalization tendencies. As a result, there was no evidence that negative cognition affects the sense of body ownership. However, participants with higher depersonalization tendencies experienced a greater forward shift in their center of gravity when presented with visual and tactile stimuli asynchronously while having negative cognitions. This response may suggest an attempt to regain a sense of body ownership in a depersonalization-like situation.

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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Pseudoneglect refers to a leftward bias of the subjective bisection point of a horizontal line. Visual illusions can be weakened in judgments involving manual movements. We hypothesized that graspable objects (e.g., sticks) affording manual movements, as well as manual movements during judgments, would weaken pseudoneglect. In our experiment, subjective bisection points of a stick and a line were measured using the method of adjustment and the method of single stimuli. In the method of adjustment, participants reported the bisection point through their upper limb movements in horizontal directions. In the method of single stimuli, participants reported whether a landmark on the stimulus deviated leftward or rightward from the center of the stimulus. Results showed that the subjective bisection point was significantly less biased to the left for sticks than for lines. We did not find main or interactive effects of measurement methods. These results suggest that graspable objects weaken pseudoneglect.

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[in Japanese]

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Recent research in vision science suggests that human scene and texture Perception may be processed based on the computation of relatively simple image features. Those image features are also related to aesthetic processing such as visual pleasantness. In this study, such image features are called aesthetic image features. In this study, we examined the values of aesthetic image features in the works of three representative impressionist painters (Monet, Sisley, and Pissarro) to see what kind of values they have and what kind of time-series changes they show. The results revealed that the time-series in aesthetic image features correspond well to the findings in the field of art history, i.e., the chronological changes in the style of paintings during the lifetime of each artist. This result indicates that aesthetic image features can be used as indices of the chronological changes in art styles, and also suggests the possibility that the study of art history can be based on the characteristics of human perception and aesthetics.

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[in Japanese]

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