An object appears smaller in the periphery than in the center of the visual field. In two experiments (N = 24), we demonstrated that visuospatial attention contributes substantially to this perceptual distortion. Participants judged the size of central and peripheral target objects after a transient, exogenous cue directed their attention to either the central or the peripheral location. Peripheral target objects were judged to be smaller following a central cue, whereas this effect disappeared completely when the peripheral target was cued. This outcome suggests that objects appear smaller in the visual periphery not only because of the structural properties of the visual system but also because of a lack of spatial attention.

中文翻译：

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为什么物体在视觉周边看起来更小

物体在外围看起来比在视野中心小。在两个实验中（N = 24），我们证明了视觉空间注意力对这种感知扭曲有很大贡献。在短暂的外源性线索将他们的注意力引导到中央或外围位置后，参与者判断中央和外围目标对象的大小。根据中央提示判断外围目标对象较小，而当外围目标被提示时，这种效果完全消失。这一结果表明，物体在视觉外围看起来更小，不仅因为视觉系统的结构特性，还因为缺乏空间注意力。