کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4327256 1614117 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
How recent experience affects the perception of ambiguous objects
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
How recent experience affects the perception of ambiguous objects
چکیده انگلیسی

Sensory information from the external world is inherently ambiguous, necessitating prior experience as a constraint on perception. Recent experience with clear, prototypical stimuli may, however, induce complex effects on the subsequent perception of ambiguous ones, ranging from attraction (priming) to repulsion (adaptation aftereffects). In the present study, we ask what determines the direction and magnitude of the effects in the case of images of naturalistic (complex) objects, which are putatively analyzed in advanced visual cortices and under the influence of multimodal semantic memories. We find a basic crossover from adaptation aftereffects to priming effects as the delay lengthens between experiencing a prototype and seeing the ambiguous stimulus. Adaptation aftereffects appear as a shift in the perceptual boundary between distinct object images, which vanishes with time, unmasking an overall and temporally sustained priming bias. A similar attractive bias occurs when the original adapter is substituted by an ambiguous image.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research - Volume 1322, 31 March 2010, Pages 81–91
نویسندگان
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