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Demonstration of an Ebbinghaus Illusion at a Memory Level

2014; Hogrefe Verlag; Volume: 61; Issue: 5 Linguagem: Inglês

10.1027/1618-3169/a000258

2190-5142

Amandine E. Rey, Benoit Riou, Rémy Versace,

Visual perception and processing mechanisms

Based on recent behavioral and neuroimaging data suggesting that memory and perception are partially based on the same sensorimotor system, the theoretical aim of the present study was to show that it is difficult to dissociate memory mechanisms from perceptual mechanisms other than on the basis of the presence (perceptual processing) or absence (memory processing) of the characteristics of the objects involved in the processing. In line with this assumption, two experiments using an adaptation of the Ebbinghaus illusion paradigm revealed similar effects irrespective of whether the size difference between the inner circles and the surrounding circles was manipulated perceptually (the size difference was perceptually present, Experiment 1) or merely reactivated in memory (the difference was perceptually absent, Experiment 2).