Ron Dotsch’s research while affiliated with Snap inc. and other places

... Ge, Jing [12] performed analysis to reveal that sticker's main utility, amongst others, is to express emotions and convey behavior, action and attitude, however this is challenging to measure in stickers. Jiang et al. [15], A. T. Kariko et al. [16] indicates utilization augments personal happiness. Gygli, M et al. [13] observes interesting gifs gaining curiosity and attention, however this does not directly align with a sticker's purpose of emotional expressiveness. ...

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PerSRV: Personalized Sticker Retrieval with Vision-Language Model

... Approaches to exploiting expert knowledge-or a theoretical understanding of real world processes-have been used in various scientific fields and have shown that these can indeed improve the performance of data-mining classifiers and provide additional knowledge on the participating variables and their effect on the predicted variable (Elmakias and Vilenchik, 2021). Naturally, expert knowledge can only help if it is well-established and indeed proven to simulate the forces operating on the phenomenon being studied (Sofer et al., 2022). We therefore suggest here to rely on the conceptual piping model of Nahlieli et al. (2022) for the selection of input layers to classify areas prone to piping. ...

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Mapping areas prone to piping using random forest with key explanatory variables

... Consistent with enhanced sensitivity to (subtle) sensory inputs, higher HSPS scores correlate with faster detection of meaningful visual stimuli made difficult to perceive. One recent study found across ten experiments that an individual's non-conscious visual prioritisation speed, as measured using breaking continuous flash suppression, was consistent across a range of stimuli, generalised across visual masks and suppression tasks, and was uniquely predicted by HSPS scores [8]. Variation in non-conscious visual prioritisation speed could not be explained by variation in general speed, perceptual decision thresholds, short-term visual memory or attention performance. ...

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Sensory Processing Sensitivity: theory, evidence and directions

... Specifically, it allows capturing visual representations at a group-level (i.e., from a sample of participants in a condition) as well as at an individual level (i.e., from a single participant). On the one hand, visual representations produced at a group level are of much better quality than those at an individual level (because they rest on a larger number of answers), but they lead to inflated Type I errors (Cone et al., 2020). On the other hand, individual level representations allow for more fine-grained analyses (e.g., correlation with individual level variables), but they require a very large number of trials to achieve good quality outcomes, which entails other issues (i.e., economically costly, time demanding, decreased participants' motivation to complete the task in a conscientious manner; . ...

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Introducing the brief reverse correlation: An improved tool to assess visual representations

... The critical test of assimilation and contrast effects in social cognition is thus a curve-fitting approach for judgements relative to a standard that varies in extremity on the given judgement dimension (e.g., standards from low to high in extraversion). Barker and Imhoff (2021) used the Comparative Judgement Task developed by Barker et al. (2020) to test these predictions. Participants judged a neutral target face on the dimensions "extraversion" (Study 1a), "trustworthiness" (Study 1b), and "dominance" (Study 1c). ...

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Relativity in Social Cognition: Basic processes and novel applications of social comparisons

... First, we used a confirmatory factor model to estimate a disease-agnostic profile in six cognitive domains: memory, executive functioning, processing speed, verbal processing, visual spatial processing and working memory. The factor loading's for these domains were derived from a structural equation model that was similar (but not identical) to models we have used in previous work on the healthy individuals (Vermeent et al., 2022(Vermeent et al., , 2020. The Supplemental material include the predefined structure of the confirmatory factor model. ...

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Clinical validity of IntelliSpace Cognition digital assessment platform in mild cognitive impairment

... To assess the quality of the average and individual CIs, we relied on the infoVal metric developed by see also Schmitz et al., 2020aSchmitz et al., , 2020b) that quantifies the degree to which a CI contains signal rather than noise. To improve the accuracy or the metric, we applied an oval-shaped mask to the CIs to extract the face region 1 Bayes factor (BF) estimations were derived from the Bayesian information criterion (BIC) with a 'unit information prior' following the guidelines from Wagenmakers (2007). ...

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Introducing the brief reverse correlation: An improved tool to assess visual representations

... In the statistical analysis we fitted random slopes for skin color transformation on each facial photograph ID to reduce the standard error caused by these differences; however, it is important to note that any manipulation presents a risk of such artifacts. Moreover, we not only lightened and darkened facial color but also homogenized it by removing such texture-related aspects as spots, freckles, or wrinkles [59,89,90]. Comparing the two color transformed versions of each group, that is the ones with texture and color homogenized, we observed, in general, the main effects of skin color previously reported (see ; however, our results suggest that skin texture does have an effect, particularly on perceived health. ...

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Effects of facial skin pigmentation on social judgments in a Mexican population

... In previous studies, the RC method has effectively visualized features related to the perception of race, gender, and personality traits, such as dominance or submissiveness (Dotsch & Todorov, 2012;Brinkman, Todorov, & Dotsch, 2017;Imhoff et al., 2011;Oliveira, Garcia-Marques, & Dotsch, 2019;Poveda-Bautista, Diego-Mas, & Alcaide-Marzal, 2021). The procedure involves overlaying a grayscale base image with random noise. ...

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When houses wear faces: Reverse correlation applied to architectural design

... presentation and recall of a 15-word list. Visuospatial construction and visual memory were both assessed using the Rey-Osterrieth Complex Figure Test 98 , with a focus on copying and later recalling a complex figure 99 . Overall cognitive functioning was gauged through the Montreal Cognitive Assessment (MoCA) 100 , which covers various cognitive domains and is sensitive to detecting mild cognitive impairment and dementia 101 . ...

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Efficacy of home based computerized adaptive cognitive training in patients with post stroke cognitive impairment: a randomized controlled trial