Acute effects of psilocybin on the dynamics of gaze fixations during visual aesthetic perception
Abstract Serotonergic psychedelics are remarkable for their capacity to induce variable yet reproducible modifications to human consciousness. The acute effects of these compounds include perceptual alterations, predominantly in the visual domain, yet these alterations have been mostly documented on...
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Nature Portfolio
2025-07-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-10206-8 |
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| author | Stephanie Muller Federico Cavanna Laura de la Fuente Nicolás Bruno Tomás Ariel D’Amelio Carla Pallavicini Enzo Tagliazucchi |
| author_facet | Stephanie Muller Federico Cavanna Laura de la Fuente Nicolás Bruno Tomás Ariel D’Amelio Carla Pallavicini Enzo Tagliazucchi |
| author_sort | Stephanie Muller |
| collection | DOAJ |
| description | Abstract Serotonergic psychedelics are remarkable for their capacity to induce variable yet reproducible modifications to human consciousness. The acute effects of these compounds include perceptual alterations, predominantly in the visual domain, yet these alterations have been mostly documented only by subjective reports. We used eye-tracking to quantify the effects of low vs. high doses of psilocybin mushrooms on eye movements during the exploration of complex visual stimuli under semi-naturalistic conditions, focusing on the case of aesthetic perception. The experimental condition (high vs. low dose) was a priori unknown to participants and experimenters. High doses resulted in a more local visual exploration of paintings, and a less entropic distribution of fixations. While psilocybin altered gaze behavior and increased subjective emotional intensity and feelings of flow, it did not affect the aesthetic ratings of the stimuli, suggesting a dissociation between perceptual and evaluative aspects of aesthetic experience. These findings suggest that psilocybin may influence gaze fixation by altering the perception of low-level visual features, including textures, shapes, and colors. Our work highlights the possibility of investigating psychedelics by addressing their effect on behavior under complex naturalistic conditions, contributing to maintaining subject engagement while also increasing the ecological validity of the findings. |
| format | Article |
| id | doaj-art-e2a432d0632544b49b9a7c70c272f0fd |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-e2a432d0632544b49b9a7c70c272f0fd2025-08-20T03:46:07ZengNature PortfolioScientific Reports2045-23222025-07-0115111410.1038/s41598-025-10206-8Acute effects of psilocybin on the dynamics of gaze fixations during visual aesthetic perceptionStephanie Muller0Federico Cavanna1Laura de la Fuente2Nicolás Bruno3Tomás Ariel D’Amelio4Carla Pallavicini5Enzo Tagliazucchi6National Scientific and Technical Research Council (CONICET)National Scientific and Technical Research Council (CONICET)National Scientific and Technical Research Council (CONICET)National Scientific and Technical Research Council (CONICET)National Scientific and Technical Research Council (CONICET)National Scientific and Technical Research Council (CONICET)Institute of Applied and Interdisciplinary Physics, Department of Physics, University of Buenos AiresAbstract Serotonergic psychedelics are remarkable for their capacity to induce variable yet reproducible modifications to human consciousness. The acute effects of these compounds include perceptual alterations, predominantly in the visual domain, yet these alterations have been mostly documented only by subjective reports. We used eye-tracking to quantify the effects of low vs. high doses of psilocybin mushrooms on eye movements during the exploration of complex visual stimuli under semi-naturalistic conditions, focusing on the case of aesthetic perception. The experimental condition (high vs. low dose) was a priori unknown to participants and experimenters. High doses resulted in a more local visual exploration of paintings, and a less entropic distribution of fixations. While psilocybin altered gaze behavior and increased subjective emotional intensity and feelings of flow, it did not affect the aesthetic ratings of the stimuli, suggesting a dissociation between perceptual and evaluative aspects of aesthetic experience. These findings suggest that psilocybin may influence gaze fixation by altering the perception of low-level visual features, including textures, shapes, and colors. Our work highlights the possibility of investigating psychedelics by addressing their effect on behavior under complex naturalistic conditions, contributing to maintaining subject engagement while also increasing the ecological validity of the findings.https://doi.org/10.1038/s41598-025-10206-8PsychedelicsPsilocybinVisualAestheticsPerceptionEye tracker |
| spellingShingle | Stephanie Muller Federico Cavanna Laura de la Fuente Nicolás Bruno Tomás Ariel D’Amelio Carla Pallavicini Enzo Tagliazucchi Acute effects of psilocybin on the dynamics of gaze fixations during visual aesthetic perception Scientific Reports Psychedelics Psilocybin Visual Aesthetics Perception Eye tracker |
| title | Acute effects of psilocybin on the dynamics of gaze fixations during visual aesthetic perception |
| title_full | Acute effects of psilocybin on the dynamics of gaze fixations during visual aesthetic perception |
| title_fullStr | Acute effects of psilocybin on the dynamics of gaze fixations during visual aesthetic perception |
| title_full_unstemmed | Acute effects of psilocybin on the dynamics of gaze fixations during visual aesthetic perception |
| title_short | Acute effects of psilocybin on the dynamics of gaze fixations during visual aesthetic perception |
| title_sort | acute effects of psilocybin on the dynamics of gaze fixations during visual aesthetic perception |
| topic | Psychedelics Psilocybin Visual Aesthetics Perception Eye tracker |
| url | https://doi.org/10.1038/s41598-025-10206-8 |
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