کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6203226 1263369 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Brightness masking is modulated by disparity structure
ترجمه فارسی عنوان
رنگ آمیزی روشنایی به وسیله ساختار ناهمگونی تعدیل شده است
کلمات کلیدی
برآورد روشنایی، ماسک تصویری درک عمق دوقطبی، پر کردن
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های حسی
چکیده انگلیسی


- Brightness masking is affected by three-dimensional configuration.
- Masks with the same 3-D orientation yield a greater masking effect.
- Brightness estimation is likely to be partially mediated by mid-level mechanisms.

The luminance contrast at the borders of a surface strongly influences surface's apparent brightness, as demonstrated by a number of classic visual illusions. Such phenomena are compatible with a propagation mechanism believed to spread contrast information from borders to the interior. This process is disrupted by masking, where the perceived brightness of a target is reduced by the brief presentation of a mask (Paradiso & Nakayama, 1991), but the exact visual stage that this happens remains unclear. In the present study, we examined whether brightness masking occurs at a monocular-, or a binocular-level of the visual hierarchy. We used backward masking, whereby a briefly presented target stimulus is disrupted by a mask coming soon afterwards, to show that brightness masking is affected by binocular stages of the visual processing. We manipulated the 3-D configurations (slant direction) of the target and mask and measured the differential disruption that masking causes on brightness estimation. We found that the masking effect was weaker when stimuli had a different slant. We suggest that brightness masking is partly mediated by mid-level neuronal mechanisms, at a stage where binocular disparity edge structure has been extracted.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vision Research - Volume 110, Part A, May 2015, Pages 87-92
نویسندگان
, , ,