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While early scientists initially focused on objective criteria of beauty (\u2018feature-based aesthetics\u2019), philosophers and artists alike have since proposed that beauty arises from the interaction between the object and the individual who perceives it. The aesthetic theory of fluency formalizes this idea of interaction by proposing that beauty is determined by the efficiency of information processing in the perceiver\u2019s brain (\u2018processing-based aesthetics\u2019), and that efficient processing induces a positive aesthetic experience. The theory is supported by numerous psychological results, however, to date there is no quantitative predictive model to test it on a large scale. In this work, we propose to leverage the capacity of deep convolutional neural networks (DCNN) to model the processing of information in the brain by studying the link between beauty and neuronal sparsity, a measure of information processing efficiency. Whether analyzing pictures of faces, figurative or abstract art paintings, neuronal sparsity explains up to 28% of variance in beauty scores, and up to 47% when combined with a feature-based metric. However, we also found that sparsity is either positively or negatively correlated with beauty across the multiple layers of the DCNN. Our quantitative model stresses the importance of considering how information is processed, in addition to the content of that information, when predicting beauty, but also suggests an unexpectedly complex relationship between fluency and beauty.<\/jats:p>","DOI":"10.1371\/journal.pcbi.1011703","type":"journal-article","created":{"date-parts":[[2023,12,4]],"date-time":"2023-12-04T18:30:15Z","timestamp":1701714615000},"page":"e1011703","update-policy":"https:\/\/doi.org\/10.1371\/journal.pcbi.corrections_policy","source":"Crossref","is-referenced-by-count":9,"title":["Sparsity in an artificial neural network predicts beauty: Towards a model of processing-based aesthetics"],"prefix":"10.1371","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6097-0293","authenticated-orcid":true,"given":"Nicolas M.","family":"Dibot","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sonia","family":"Tieo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tamra C.","family":"Mendelson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"William","family":"Puech","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julien P.","family":"Renoult","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"340","published-online":{"date-parts":[[2023,12,4]]},"reference":[{"key":"pcbi.1011703.ref001","doi-asserted-by":"crossref","first-page":"102","DOI":"10.3389\/fncom.2017.00102","article-title":"Computational and Experimental Approaches to Visual Aesthetics","volume":"11","author":"A Brachmann","year":"2017","journal-title":"Front Comput Neurosci"},{"key":"pcbi.1011703.ref002","doi-asserted-by":"crossref","first-page":"27073","DOI":"10.1073\/pnas.2018652117","article-title":"The human quest for discovering mathematical beauty in the arts","volume":"117","author":"S. 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