منابع مشابه
Center-surround interactions in foveal and peripheral vision
The perceived contrast of a central stimulus can be decreased (surround suppression) or increased (surround facilitation) by the presence of surround stimuli. In this report we examined center-surround interactions in foveal and peripheral vision using contrast-matching tasks. We found that: (1) surround suppression became markedly stronger as the center-surround stimulus was moved toward the p...
متن کاملMicrosaccadic efficacy and contribution to foveal and peripheral vision.
Our eyes move constantly, even when we try to fixate our gaze. Fixational eye movements prevent and restore visual loss during fixation, yet the relative impact of each type of fixational eye movement remains controversial. For over five decades, the debate has focused on microsaccades, the fastest and largest fixational eye movements. Some recent studies have concluded that microsaccades count...
متن کاملSpeed change detection in foveal and peripheral vision
Perception of constant motion has been extensively studied both psychophysically and physiologically, but the human ability to detect dynamic changes in motion, such as rapid speed changes, is only poorly characterized and understood. Yet, perception and representation of such dynamic changes is of strong behavioral relevance, as illustrated by their potential for attentional capture. In the pr...
متن کاملFoveal vision in amblyopia.
THE reduced visual acuity in amblyopic eyes has presented a.problem ever since the condition was recognized. Most of the evidence so far favours the cortex as the site of inhibition (Vogt, 1939; Wald and Burian, 1944; Dyer and Bierman, 1952). Clarke (1941) thought that the cause might be an atrophy from disuse affecting the cells of the lateral geniculate body which rely for their vitality on t...
متن کاملModeling Foveal Vision
A geometric model is proposed for an artificial foveal vision system, and its plausibility in the context of biological vision is explored. The model is based on an isotropic, scale invariant two-form that describes the spatial layout of receptive fields in the the visual sensorium (in the biological context roughly corresponding to retina, LGN, and V1). It overcomes the limitation of the famil...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Psychological Bulletin
سال: 1911
ISSN: 0033-2909
DOI: 10.1037/h0071736