{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:21:07Z","timestamp":1760239267812,"version":"build-2065373602"},"reference-count":51,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2020,11,3]],"date-time":"2020-11-03T00:00:00Z","timestamp":1604361600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004663","name":"Ministry of Science and Technology, Taiwan","doi-asserted-by":"publisher","award":["104-2410-H-431 -007-MY2 and 107-2410-H-431-007-MY2 to C.-C.W., and 105-2420-H-002-006-MY3 to C.-C.C."],"award-info":[{"award-number":["104-2410-H-431 -007-MY2 and 107-2410-H-431-007-MY2 to C.-C.W., and 105-2420-H-002-006-MY3 to C.-C.C."]}],"id":[{"id":"10.13039\/501100004663","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Within the spectrum of a natural image, the amplitude of modulation decreases with spatial frequency. The speed of such an amplitude decrease, or the amplitude spectrum slope, of an image affects the perceived aesthetic value. Additionally, a human observer would consider a symmetric image more appealing than they would an asymmetric one. We investigated how these two factors jointly affect aesthetic preferences by manipulating both the amplitude spectrum slope and the symmetric level of images to assess their effects on aesthetic preference on a 6-point Likert scale. Our results showed that the preference ratings increased with the symmetry level but had an inverted U-shaped relation to amplitude spectrum slope. In addition, a strong interaction existed between symmetry level and amplitude spectrum slope on preference rating, in that symmetry can amplify the amplitude spectrum slope\u2019s effects. A quadratic function of the spectrum slope can describe such effects. That is, preference is an inverted U-shaped function of spectrum slope whose intercept is determined by the number of symmetry axes. The modulation depth of the quadratic function manifests the interaction between the two factors.<\/jats:p>","DOI":"10.3390\/sym12111820","type":"journal-article","created":{"date-parts":[[2020,11,3]],"date-time":"2020-11-03T20:46:52Z","timestamp":1604436412000},"page":"1820","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Symmetry Modulates the Amplitude Spectrum Slope Effect on Visual Preference"],"prefix":"10.3390","volume":"12","author":[{"given":"Chia-Ching","family":"Wu","sequence":"first","affiliation":[{"name":"Department of Psychology, Fo Guang University, Yilan 262307, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3848-0180","authenticated-orcid":false,"given":"Chien-Chung","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Psychology, National Taiwan University, Taipei 106319, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,11,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"235","DOI":"10.1080\/09548980701574496","article-title":"Artists portray human faces with the Fourier statistics of complex natural scenes","volume":"18","author":"Redies","year":"2007","journal-title":"Netw. 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