Object memory effects on figure assignment: conscious object recognition is not necessary or sufficient

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Abstract

In three experiments we investigated whether conscious object recognition is necessary or sufficient for effects of object memories on figure assignment. In experiment 1, we examined a brain-damaged participant, AD, whose conscious object recognition is severely impaired. AD's responses about figure assignment do reveal effects from memories of object structure, indicating that conscious object recognition is not necessary for these effects, and identifying the figure-ground test employed here as a new implicit test of access to memories of object structure. In experiments 2 and 3, we tested a second brain-damaged participant, WG, for whom conscious object recognition was relatively spared. Nevertheless, effects from memories of object structure on figure assignment were not evident in WG's responses about figure assignment in experiment 2, indicating that conscious object recognition is not sufficient for effects of object memories on figure assignment. WG's performance sheds light on AD's performance, and has implications for the theoretical understanding of object memory effects on figure assignment. Copyright (C) 2000 Elsevier Science Ltd.

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Peterson, M. A., De Gelder, B., Rapcsak, S. Z., Gerhardstein, P. C., & Bachoud-Lévi, A. C. (2000). Object memory effects on figure assignment: conscious object recognition is not necessary or sufficient. Vision Research, 40(10–12), 1549–1567. https://doi.org/10.1016/S0042-6989(00)00053-5

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