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Postural and Visual Aftereffects to a Slanted Floor in Lying and Sitting Positions by Atsuki Higashiyama; Tadashi Yamazaki is a Neuroscience article available to read on EtoBox.

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After lying on a slanted floor for a while with the eyes closed, we may perceive it to be less slanted than at the beginning. After viewing a slanted floor while lying on a flat base, we may perceive it to be more horizontal. We investigated these postural and visual adaptations and their interactions with participants lying and sitting on the floor. The participants were adapted to a floor that was posturally, visually, or jointly slanted, and were asked to estimate the test slants around the adapting slant. The estimates were described as a linear function of the test slant with a high goodness-of-fit over the adapting slant. This supported normalization, not satiation, view. Second, the slope of the function, i.e., sensitivity to slant, in the lying position was low in the postural and visual conditions but high in the joint condition, whereas the sensitivity in the sitting position was equally high in all conditions. This was explained by an increase in visual and non-visual cues to the gravitational vertical in the sitting position, and by an abnormal pattern of intracorporeal hydrostatic pressure in the lying position. Third, in both body positions, the angle at which the sla

Who reads Postural and Visual Aftereffects to a Slanted Floor in Lying and Sitting Positions?

Author

Atsuki Higashiyama; Tadashi Yamazaki

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Neuroscience (Life Sciences)