The psychophysics of human three-dimensional active visuospatial problem-solving.

A clear trend ( F 2 , 92 = 37.0 , p < 0.0001 ) can be observed between the amount of head movement and the amount of orientational difference (see Figure S4 b, SI); at 0 ∘ the least amount of movement was required, at 90 ∘ an increase of 2–5 m on average is recorded, and at 180 ∘ an additional increase of 1–5 m across all complexity classes is recorded.

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