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. Author manuscript; available in PMC: 2014 Apr 21.
Published in final edited form as: Vision Res. 2009 Aug 11;49(20):2509–2517. doi: 10.1016/j.visres.2009.08.007

Figure 2.

Figure 2

Stimulus conditions. Local apparent motion occurred over a range of spatial displacements (Δx) and temporal displacements (Δt) arranged to systematically probe a number of Δx's at a fixed Δt (vertical columns), a number of Δt's at a fixedΔx (horizontal rows) and combinations of Δx and Δt that lead to a consistent speed (diagonal lines). Both infants and adults provided data for the conditions indicated by the filled circles. Adults provided additional data in the conditions indicated by the open circles.