{"title":"Pupillary Responses Reflect Image Memorability.","authors":"Ryosuke Niimi","doi":"10.1111/psyp.70007","DOIUrl":null,"url":null,"abstract":"<p><p>This study examined whether pupil size varies as a function of the memorability of natural scene images. In Experiment 1, participants were asked to memorize, recognize, and passively view high- and low-memorability images from an established dataset. The baseline-corrected pupil sizes were larger for high-memorability images, but only during old trials in the recognition phase. However, after implementing stricter controls for image luminance and arousal, pupil dilation for high-memorability images was observed across all phases: memorization, recognition, and passive viewing (Experiments 2 and 3). The effect of image memorability was further validated through item-based analysis. Both the pupil old/new effect and the subsequent memory effect were replicated, and these effects are probably separable from the effect of image memorability. The results of this study suggest that pupil size is sensitive to image memorability regardless of the behavioral task, supporting the view that image memorability is an intrinsic, higher-order property of the image.</p>","PeriodicalId":20913,"journal":{"name":"Psychophysiology","volume":"62 2","pages":"e70007"},"PeriodicalIF":2.9000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Psychophysiology","FirstCategoryId":"102","ListUrlMain":"https://doi.org/10.1111/psyp.70007","RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"NEUROSCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
This study examined whether pupil size varies as a function of the memorability of natural scene images. In Experiment 1, participants were asked to memorize, recognize, and passively view high- and low-memorability images from an established dataset. The baseline-corrected pupil sizes were larger for high-memorability images, but only during old trials in the recognition phase. However, after implementing stricter controls for image luminance and arousal, pupil dilation for high-memorability images was observed across all phases: memorization, recognition, and passive viewing (Experiments 2 and 3). The effect of image memorability was further validated through item-based analysis. Both the pupil old/new effect and the subsequent memory effect were replicated, and these effects are probably separable from the effect of image memorability. The results of this study suggest that pupil size is sensitive to image memorability regardless of the behavioral task, supporting the view that image memorability is an intrinsic, higher-order property of the image.
期刊介绍：
Founded in 1964, Psychophysiology is the most established journal in the world specifically dedicated to the dissemination of psychophysiological science. The journal continues to play a key role in advancing human neuroscience in its many forms and methodologies (including central and peripheral measures), covering research on the interrelationships between the physiological and psychological aspects of brain and behavior. Typically, studies published in Psychophysiology include psychological independent variables and noninvasive physiological dependent variables (hemodynamic, optical, and electromagnetic brain imaging and/or peripheral measures such as respiratory sinus arrhythmia, electromyography, pupillography, and many others). The majority of studies published in the journal involve human participants, but work using animal models of such phenomena is occasionally published. Psychophysiology welcomes submissions on new theoretical, empirical, and methodological advances in: cognitive, affective, clinical and social neuroscience, psychopathology and psychiatry, health science and behavioral medicine, and biomedical engineering. The journal publishes theoretical papers, evaluative reviews of literature, empirical papers, and methodological papers, with submissions welcome from scientists in any fields mentioned above.
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