کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6203772 1263445 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Can we track holes?
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های حسی
پیش نمایش صفحه اول مقاله
Can we track holes?
چکیده انگلیسی

The evidence is mixed as to whether the visual system treats objects and holes differently. We used a multiple object tracking task to test the hypothesis that figural objects are easier to track than holes. Observers tracked four of eight items (holes or objects). We used an adaptive algorithm to estimate the speed allowing 75% tracking accuracy. In Experiments 1-5, the distinction between holes and figures was accomplished by pictorial cues, while red-cyan anaglyphs were used to provide the illusion of depth in Experiment 6. We variously used Gaussian pixel noise, photographic scenes, or synthetic textures as backgrounds. Tracking was more difficult when a complex background was visible, as opposed to a blank background. Tracking was easier when disks carried fixed, unique markings. When these factors were controlled for, tracking holes was no more difficult than tracking figures, suggesting that they are equivalent stimuli for tracking purposes.

Research highlights► Multiple object tracking as a way to measure how the visual system parses a scene. ► Tracking was more difficult with a complex background, than a blank background. ► Tracking was easier when disks carried fixed, unique markings. ► Tracking holes was no more difficult than tracking figures. ► Suggests that proto-objects can be regions which lack an image-based border.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vision Research - Volume 51, Issue 9, 11 May 2011, Pages 1013-1021
نویسندگان
, ,