کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6203185 1603185 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Look where you're going! Perceptual attention constrains the online guidance of action
ترجمه فارسی عنوان
به کجا نگاه کنی؟ توجه ادراکی راهنمایی آنلاین عمل را محدود می کند
کلمات کلیدی
کنترل آنلاین دستیابی به، ادراک و عمل، توجه ویژهای، نظریه پیشرو،
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های حسی
چکیده انگلیسی


- Perceptual attention interferes with online correction of reaching.
- Online corrections are least likely toward the attended side.
- The results indicate that perception and action share an attentional resource.

Action guidance, like perceptual discrimination, requires selective attention. Perception is enhanced at the target of a reaching movement, but it is not known whether selecting an object for perception reciprocally prioritises it for action. Two theoretical frameworks, the premotor theory and the Visual Attention Model, predict that this reciprocal relation should hold. We tested the influence of perceptual attention on the online control of reaching. In Experiment 1, participants attended covertly to a flanker on one or other side of a fixated target, prior to reaching for that target, which occasionally jumped, after reach onset, to the attended or non-attended side. Participants corrected their reaches for almost all target jumps. In Experiment 2, we required covert monitoring of the flanker during reaching. This concurrent perceptual task globally reduced correction behaviour, indicating that perception and action share a common attentional resource. Corrections were especially unlikely toward the attended side. This is explained by assuming that perceptual attention primed an action toward the attended location and that the participant inhibited this primed action. The data thus imply that perceptual selection constrains online action guidance, as predicted by the premotor theory and the VAM. We further argue that the fact that participants can inhibit a location within the action system but simultaneously maintain its prioritisation for perceptual monitoring, is easier to reconcile with the VAM than with the premotor theory.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vision Research - Volume 110, Part B, May 2015, Pages 179-189
نویسندگان
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