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Article

Examining the Impact of Human Face Stimulus on Shape-Contrast Effects during a Brief Presentation

Institute for Asian and Oceanian Studies, Kyushu University, Fukuoka 819-0395, Japan
Academic Editor: Silvio Ionta
Brain Sci. 2022, 12(7), 914; https://doi.org/10.3390/brainsci12070914
Received: 12 June 2022 / Revised: 9 July 2022 / Accepted: 11 July 2022 / Published: 13 July 2022
(This article belongs to the Section Sensory and Motor Neuroscience)
Shape-contrast effects have been introduced to the investigations into face perception with the aim of exploring face adaptation in the context of norm-based coding. Research has indicated that shape-contrast effects occur even for shapes as complex as the human face. However, whether the complexity of face stimuli alters the magnitude of shape-contrast effects needs to be examined. In this study, emoticons and realistic human faces were used with the original white circle as the test stimuli. The results revealed that the shape-contrast effect was dependent on the stimulus. However, there was no significant difference between the shape-contrast effect evoked by upright faces and that evoked by inverted ones. This suggests that the face stimuli influenced the strength of the shape-contrast effect: the mechanism of this effect involved multiple stages of the visual system related to luminance and complexity, rather than the holistic face perception. View Full-Text
Keywords: visual illusion; visual aftereffect; face perception; shape-contrast effect visual illusion; visual aftereffect; face perception; shape-contrast effect
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MDPI and ACS Style

Qian, K. Examining the Impact of Human Face Stimulus on Shape-Contrast Effects during a Brief Presentation. Brain Sci. 2022, 12, 914. https://doi.org/10.3390/brainsci12070914

AMA Style

Qian K. Examining the Impact of Human Face Stimulus on Shape-Contrast Effects during a Brief Presentation. Brain Sciences. 2022; 12(7):914. https://doi.org/10.3390/brainsci12070914

Chicago/Turabian Style

Qian, Kun. 2022. "Examining the Impact of Human Face Stimulus on Shape-Contrast Effects during a Brief Presentation" Brain Sciences 12, no. 7: 914. https://doi.org/10.3390/brainsci12070914

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