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vertical–horizontal illusion
vertical–horizontal illusion The vertical–horizontal illusion is a visual perception effect in which two lines of equal length look different in length, usually with the vertical line appearing longer than the horizontal line in an inverted T-shaped figure.
The vertical–horizontal illusion is a visual perception effect in which two lines of equal length look different in length, usually with the vertical line appearing longer than the horizontal line in an inverted T-shaped figure. Evidence in the packet links this effect to framing by the shape of the visual field, and it becomes stronger when gaze fixation makes the retinal image more stable.