What does interposition indicate in visual perception?

Interposition is a monocular cue for depth perception, which is the ability to perceive the relative distance of objects in a visual scene. When one object partially obscures another, the object that is blocked is perceived as being farther away. This phenomenon occurs because the visual system uses the overlap presented by interposition to interpret spatial relationships, helping to create a sense of depth and three-dimensionality in what might otherwise be a flat image. Therefore, when discussing interposition in the context of visual perception, it directly relates to how depth is assessed using cues available from one eye, reinforcing the concept of monocular depth perception.

The other options do not correctly describe interposition. For instance, completeness of visual acuity under bright conditions pertains more to visual acuity and contrast rather than depth perception. Focusing on multiple objects involves different aspects of visual processing, including attention and convergence, rather than depth cues like interposition. The speed of movement seen in objects relates to motion perception rather than how depth is indicated through overlapping objects.