دانلود مقاله ISI انگلیسی شماره 70229
عنوان فارسی مقاله

آغازگر تکرار در توجه انتخابی: تجزیه و تحلیل TVA

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
70229 2015 8 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Repetition priming in selective attention: A TVA analysis
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Acta Psychologica, Volume 160, September 2015, Pages 35–42

کلمات کلیدی
آغازگر تکرار؛ توجه بصری؛ مدل سازی؛ TVA؛ شناخت بصری
پیش نمایش مقاله
پیش نمایش مقاله آغازگر تکرار در توجه انتخابی: تجزیه و تحلیل TVA

چکیده انگلیسی

Current behavior is influenced by events in the recent past. In visual attention, this is expressed in many variations of priming effects. Here, we investigate color priming in a brief exposure digit-recognition task. Observers performed a masked odd-one-out singleton recognition task where the target-color either repeated or changed between subsequent trials. Performance was measured by recognition accuracy over exposure durations. The purpose of the study was to replicate earlier findings of perceptual priming in brief displays and to model those results based on a Theory of Visual Attention (TVA; Bundesen, 1990). We tested 4 different definitions of a generic TVA-model and assessed their explanatory power. Our hypothesis was that priming effects could be explained by selective mechanisms, and that target-color repetitions would only affect the selectivity parameter (α) of our models. Repeating target colors enhanced performance for all 12 observers. As predicted, this was only true under conditions that required selection of a target among distractors, but not when a target was presented alone. Model fits by TVA were obtained with a trial-by-trial maximum likelihood estimation procedure that estimated 4–15 free parameters, depending on the particular model. We draw two main conclusions. Color priming can be modeled simply as a change in selectivity between conditions of repetition or swap of target color. Depending on the desired resolution of analysis; priming can accurately be modeled by a simple four parameter model, where VSTM capacity and spatial biases of attention are ignored, or more fine-grained by a 10 parameter model that takes these aspects into account.

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