Journal Article10.1177/03010066221086080
Merry-or-Worry, Illusion
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TL;DR: In the most well-known examples of such illusions of multistability, the phenomenal change relates just to visual organization as discussed by the authors , and much less common are perceptions of alternating emotional content in the ambiguous visual image.
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Abstract: Ambiguous figures (aka bistable, multistable, or reversible images) have fascinated scientists as well as laypersons for centuries. It may be surprising indeed how one and the same physical depiction can be experienced in perceptual awareness in cardinally different ways. In the most well-known examples of such illusions of multistability, the phenomenal change relates just to visual organization. Much less common are perceptions of alternating emotional content in the ambiguous visual image. Here, I introduce one such example.
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Citations
Conscious interpretation: A distinct aspect for the neural markers of the contents of consciousness
Talis Bachmann,Isaac Nana Akuffo +1 more
TL;DR: In this article , the authors highlight paradigms where the object is represented in consciousness as a set of its features but the interpretation of this set alternates in consciousness, and discuss how theories of consciousness might incorporate knowledge and constraints arising from the characteristics of conscious interpretation.
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Within-object element ambiguity allows for a strange illusion of alternating facial expression and structure
TL;DR: Within-object element ambiguity allows for a strange illusion of alternating facial expression and structure as discussed by the authors , which can be used to distinguish between facial expressions and body shapes. But it does not explain the effect of facial expressions on the appearance of the human body.
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References
Enduring interest in perceptual ambiguity: alternating views of reversible figures.
Gerald M. Long,Thomas C. Toppino +1 more
TL;DR: Research favoring the so-called bottom-up and top-down classes of explanations for reversible figures that dominated the literature in last half of the 20th century is reviewed and the utility of distinguishing between 2 components of the observer's experience with reversible figures is emphasized.
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Differences in Top—Down Influences on the Reversal Rate of Different Categories of Reversible Figures
Daniel Strüber,Michael Stadler +1 more
TL;DR: Differences in top–down effects on the reversal rate depending on whether a structural perspective or a meaningful content (duck/rabbit figure, chef/dog figure) is subject to the reversal phenomenon are reported.
96
The Thatcher illusion seen by the brain: an event-related brain potentials study.
TL;DR: The novel finding of N170 effects of Thatcherization in inverted faces suggests differences in the neural encoding of Thatcherized and original inverted faces, even though Thatcherization escapes subjective perception in inverted Faces.
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Thatcher illusion: dependence on angle of rotation.
Frank Stürzel,Lothar Spillmann +1 more
TL;DR: The sudden nature and relatively narrow zone of the changeover suggest a neuronal step-tuning of hypothetical face cells in the human brain, underlying the holistic (‘grotesque’) versus componential (“pleasant”) processing of upright versus upside-down faces.
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