An optical instrument that corrects or displays distorted or misaligned images.
From Greek 'an-' (without) + 'orthos' (correct) + 'skopein' (to view). A technical device used in optics and vision research to study how the eye and brain process orientation.
Early vision scientists used anorthoscopes to deliberately scramble images and watch how people's brains tried to make sense of chaos—this helped explain how much our perception depends on expecting things to be 'right-side up.'
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