In everyday life, we are constantly surrounded by complex and cluttered scenes. In such
cluttered environments, visual perception is primarily limited by crowding, the deleterious …

Physiological results for the size of face-specific units in inferotemporal cortex (IT) support an
extraordinarily large range of possible sizes—from 2.5° to 30° or more. We use a behavioral …

In the crowding phenomenon, recognition of a visual target is impaired by other similar
visual stimuli (distracters) presented near the target. This effect may be due largely to …

It is all but universally accepted in epistemology that knowledge is factive: S knows that p
only if p. The purpose of this thesis is to present an argument against the factivity of …

Stimulus reduction is an effective way to study visual performance. Cues such as surface
characteristics, colour and inner lines can be removed from stimuli, revealing how the …

Selective visual attention modulates neuronal activation in various cortical areas. This type
of neuronal modulation could happen even in the early stages of visual processing where …

Perceived position depends on many factors, including motion present in a visual scene.
Convincing evidence shows that high-level motion perception-which is driven by top-down …

Adaptation to first-order (luminance defined) motion produces not only a motion aftereffect
but also a position aftereffect, in which a target pattern's perceived location is shifted …

Visual adaptation is a powerful tool to probe the short-term plasticity of the visual system.
Adapting to local features such as the oriented lines can distort our judgment of …

Flanked objects are difficult to identify using peripheral vision due to visual crowding, which
limits conscious access to target identity. Nonetheless, certain types of visual information …