Local-to-global form interference in biological motion perception
نویسندگان
چکیده
منابع مشابه
Local-to-global form interference in biological motion perception.
Point-light walkers have been useful to study the contribution of form and motion to biological motion perception by manipulating the lifetime, number, or spatial distribution of the light points. Recent studies have also manipulated the light points themselves, replacing them with small images of objects. This manipulation degraded the recognizability of biological motion, particularly for loc...
متن کاملLocal form interference in biological motion perception
Replacing the local dots of point-light walkers with complex images leads to significant detriments to performance in biological motion detection and discrimination tasks. This detriment has previously been shown to be larger when the local elements match the global shape in object category and facing direction. In contrast, studies using Navon stimuli have demonstrated that local interference ...
متن کاملLocal form-motion interactions influence global form perception.
Object motion perception depends on the integration of form and motion information into a unified neural representation. Historically, form and motion perception are thought to be independent processes; however, research has demonstrated that these processes interact in numerous and complex ways. For example, an object's orientation relative to its direction of motion will influence its perceiv...
متن کاملCharacterizing global and local mechanisms in biological motion perception.
The perception of biological motion is subserved by both a global process that retrieves structural information and a local process that is sensitive to individual limb motions. Here, we present an experiment aimed to characterize these two mechanisms psychophysically. Naive observers were tested on one of two tasks. In a walker detection task designed to address global processing, observers we...
متن کاملContributions of form, motion and task to biological motion perception.
The ability of human observers to detect 'biological motion' of humans and animals has been taken as evidence of specialized perceptual mechanisms. This ability remains unimpaired when the stimulus is reduced to a moving array of dots representing only the joints of the agent: the point light walker (PLW) (G. Johansson, 1973). Such stimuli arguably contain underlying form, and recent debate has...
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ژورنال
عنوان ژورنال: Attention, Perception, & Psychophysics
سال: 2012
ISSN: 1943-3921,1943-393X
DOI: 10.3758/s13414-011-0262-z