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Permanent URI for this collectionhttps://hdl.handle.net/20.500.14288/6
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Publication Open Access Self-Help Plus for refugees and asylum seekers; study protocol for a series of individual participant data meta-analyses(Taylor _ Francis, 2021) Karyotaki, Eirini; Sijbrandij, Marit; Purgato, Marianna; Lakin, Daniel; Bailey, Della; Peckham, Emily; Uygun, Ersin; Tedeschi, Federico; Wancata, Johannes; Augustinavicius, Jura; Carswell, Ken; Valimaki, Maritta; van Ommeren, Mark; Koesters, Markus; Popa, Mariana; Leku, Marx Ronald; Anttila, Minna; Churchill, Rachel; White, Ross; Al-Hashimi, Sarah; Lantta, Tella; Au, Teresa; Klein, Thomas; Tol, Wietse A.; Cuijpers, Pim; Barbui, Corrado; Department of Psychology; Acartürk, Ceren; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; 39271Background: refugees and asylum seekers face various stressors due to displacement and are especially vulnerable to common mental disorders. To effectively manage psychological distress in this population, innovative interventions are required. The World Health Organization (WHO) Self-Help Plus (SH+) intervention has shown promising outcomes in reducing symptoms of common mental disorders among refugees and asylum seekers. However, individual participant differences in response to SH+ remain largely unknown. The Individual Participant Data (IPD) meta-analysis synthesizes raw datasets of trials to provide cutting-edge evidence of outcomes that cannot be examined by conventional meta-analytic approaches. Objectives: this protocol outlines the methods of a series of IPD meta-analyses aimed at examining the effects and potential moderators of SH+ in (a) reducing depressive symptoms at post-intervention and (b) preventing the six-month cumulative incidence of mental disorders in refugees and asylum seekers. Method: RCTs on SH+ have been identified through WHO and all authors have agreed to share the datasets of the trials. The primary outcomes of the IPD meta-analyses are (a) reduction in depressive symptoms at post-intervention, and (b) prevention of six-month cumulative incidence of mental disorders. Secondary outcomes include post-traumatic stress disorder symptoms, well-being, functioning, quality of life, and twelve-month cumulative incidence of mental disorders. One-stage IPD meta-analyses will be performed using mixed-effects linear/logistic regression. Missing data will be handled by multiple imputation. Conclusions: these results will enrich current knowledge about the response to SH+ and will facilitate its targeted dissemination. The results of these IPD meta-analyses will be published in peer-reviewed journals.Publication Open Access Craft: a benchmark for causal reasoning about forces and in teractions(Association for Computational Linguistics (ACL), 2022) Ateş, Tayfun; Ateşoğlu, M. Şamil; Yiğit, Çağatay; Department of Computer Engineering; Department of Psychology; Erdem, Aykut; Göksun, Tilbe; Yüret, Deniz; Kesen, İlker; Kobaş, Mert; Faculty Member; Faculty Member; Faculty Member; Master Student; Department of Computer Engineering; Department of Psychology; Koç Üniversitesi İş Bankası Yapay Zeka Uygulama ve Araştırma Merkezi (KUIS AI)/ Koç University İş Bank Artificial Intelligence Center (KUIS AI); Graduate School of Sciences and Engineering; College of Engineering; College of Social Sciences and Humanities; 20331; 47278; 179996; N/A; N/A; N/AHumans are able to perceive, understand and reason about causal events. Developing models with similar physical and causal understanding capabilities is a long-standing goal of artificial intelligence. As a step towards this direction, we introduce CRAFT1, a new video question answering dataset that requires causal reasoning about physical forces and object interactions. It contains 58K video and question pairs that are generated from 10K videos from 20 different virtual environments, containing various objects in motion that interact with each other and the scene. Two question categories in CRAFT include previously studied descriptive and counterfactual questions. Additionally, inspired by the Force Dynamics Theory in cognitive linguistics, we introduce a new causal question category that involves understanding the causal interactions between objects through notions like cause, enable, and prevent. Our results show that even though the questions in CRAFT are easy for humans, the tested baseline models, including existing state-of-the-art methods, do not yet deal with the challenges posed in our benchmark.Publication Open Access The development of social comparisons and sharing behavior across 12 countries(Elsevier, 2020) Samek, Anya; Cowell, Jason M.; Cappelen, Alexander W.; Cheng, Yawei; Contreras-Ibanez, Carlos; Gomez-Sicard, Natalia; Gonzalez-Gadea, Maria L.; Huepe, David; Ibanez, Agustin; Lee, Kang; Malcolm-Smith, Susan; Salas, Natalia; Tungodden, Bertil; Wong, Alina; Zhou, Xinyue; Decety, Jean; Department of Psychology; Selçuk, Bilge; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; 52913Humans are social beings, and acts of prosocial behavior may be influenced by social comparisons. To study the development of prosociality and the impact of social comparisons on sharing, we conducted experiments with nearly 2500 children aged 3–12 years across 12 countries across five continents. Children participated in a dictator game where they had the opportunity to share up to 10 of their stickers with another anonymous child. Then, children were randomized to one of two treatments. In the “shared a little” treatment children were told that another child from their school had shared 1 sticker, whereas in the “shared a lot” treatment children were told that another child from their school had shared 6 stickers in the same game. There was a strong increase in baseline sharing with age in all countries and in both treatments. The “shared a lot” treatment had a positive treatment effect in increasing sharing overall, which varied across countries. However, cross-cultural comparisons did not yield expected significant differences between collectivist and individualist countries. Our results provide interesting evidence for the development of sharing behavior by age across the world and show that social information about the sharing of peers is important for children's decision making.Publication Open Access Virtual dance mirror: a functional approach to avatar representation through movement in immersive VR(Association for Computing Machinery (ACM), 2022) Öztürk, Aslı; Topal, Onur Sümer; Department of Media and Visual Arts; Department of Psychology; N/A; Yantaç, Asım Evren; Eskenazi, Terry; Akbaş, Saliha; Şemsioğlu, Sinem; Kuşçu, Kemal; Faculty Member; Department of Media and Visual Arts; Department of Psychology; College of Social Sciences and Humanities; Graduate School of Social Sciences and Humanities; School of Medicine; 52621; 258780; N/A; N/A; N/AImmersive Virtual Reality (VR) technologies offer new possibilities for studying embodied interaction with different sets of constraints and affordances for action-taking while using one's physical body. In this study, we designed and prototyped a VR dance experience, Virtual Dance Mirror, where a dancer's bodily movements are reflected on a 3D avatar model using a motion-capture suit. We investigated the novel possibilities for avatar design based on the expression of movements available for dancers in VR environment. After a preliminary briefing session, we conducted a user-study with five dancers with semi-structured interviews. Our findings support HCI literature on virtual body design to facilitate collaboration and non-verbal communication between VR users.Publication Open Access Editorial to the special issue on temporal illusions(Brill, 2020) Vatakis, Argiro; Department of Psychology; Balcı, Fuat; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; 51269Publication Open Access Children's associations between space and pitch are differentially shaped by language(Wiley, 2022) Dolscheid, S.; Çelik, S.; Erkan, H.; Majid A.; Department of Psychology; Küntay, Aylin C.; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; 178879Musical properties, such as auditory pitch, are not expressed in the same way across cultures. In some languages, pitch is expressed in terms of spatial height (high vs. low), whereas others rely on thickness vocabulary (thick = low frequency vs. thin = high frequency). We investigated how children represent pitch in the face of this variable linguistic input by examining the developmental trajectory of linguistic and non-linguistic space-pitch associations in children who acquire Dutch (a height-pitch language) or Turkish (a thickness-pitch language). Five-year-olds, 7-year-olds, 9-year-olds, and 11-year-olds were tested for their understanding of pitch terminology and their associations of spatial dimensions with auditory pitch when no language was used. Across tasks, thickness-pitch associations were more robust than height-pitch associations. This was true for Turkish children, and also Dutch children not exposed to thickness-pitch vocabulary. Height-pitch associations, on the other hand, were not reliable-not even in Dutch-speaking children until age 11-the age when they demonstrated full comprehension of height-pitch terminology. Moreover, Turkish-speaking children reversed height-pitch associations. Taken together, these findings suggest thickness-pitch associations are acquired in similar ways by children from different cultures, but the acquisition of height-pitch associations is more susceptible to linguistic input. Overall, then, despite cross-cultural stability in some components, there is variation in how children come to represent musical pitch, one of the building blocks of music. Research Highlights Children from diverse cultures differ in their understanding of music vocabulary and in their nonlinguistic associations between spatial dimensions and auditory pitch. Height-pitch mappings are acquired late and require additional scaffolding from language, whereas thickness-pitch mappings are acquired early and are less susceptible to language input. Space-pitch mappings are not static from birth to adulthood, but change over development, suggesting music cognition is shaped by cross-cultural experience.Publication Open Access Emotion regulation function of autobiographical remembering(Turkish Psychologists Association / Türk Psikologlar Derneği, 2020) Öner, Sezin; Department of Psychology; Gülgöz, Sami; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; 49200In this study, we aimed to investigate emotion regulation function of autobiograhical remembering within an integrative perspective. We asked participants to recall sadness, anger and happiness related events for emotion induction, then they recalled any random memory that came to their mind. In the latter remembering experience. Pre- and post-report emotionality ratings and phenomenological features of the recall were examined to test whether subsequent recall served to upregulate positive emotions. Only in sadness and anger memory groups who recalled memories with high emotional impact reported more positive emotions after subsequent remembering. Also, we found distinct mechanisms by which sadness and anger groups used for emotion regulation such that for the sadness group whereas the emotional intensity accounted for the role of upregulation, for the anger group, importance of the event predicted enhanced positivity. Findings are discussed in the context of the emotion regulation function of autobiographical remembering. / Bellek ve duygusal süreçlerin ilişkisi alanyazında geniş yer tutmaktadır. Bu iki kavramı bütünsel bir bakışla incelemeyi amaçladığımız bu çalışmada otobiyografik belleğin duygu düzenleme işlevine odaklanılmıştır. Üç ayrı gruptaki katılımcılara, üzüntü, öfke veya mutluluk uyandıracak anılar hatırlatılmış ardından da bir yönerge verilmeden herhangi bir anı hatırlamaları istenmiştir. Katılımcılar ayrıca anı özelliklerini belirtmişler ve duygu düzenleme stratejilerini değerlendirmişlerdir. Hatırlamadan önce ve sonra katılımcıların nasıl hissettikleri de sorulmuştur. Bulgulara bakıldığında, duygusal etkisi yüksek anı hatırlayan olumsuz anı grubu katılımcılarının, yönergesiz hatırlama sonrasında duygu durumlarını belirgin olarak olumlulaştırdığı görülürken, bu değişimin üzüntü ve öfke gruplarında farklı anı özellikleri tarafından yürütüldüğünü saptanmıştır. Üzüntü grubunda yönergesiz anının duygusal yoğunluğunun, öfke grubunda ise anının öneminin duygu değişimine aracı olduğu gösterilmiştir. Bulgular, otobiyografik hatırlamanın duygu düzenleme işlevi bağlamında tartışılacaktır.Publication Open Access On measuring social biases in prompt-based multi-task learning(Association for Computational Linguistics (ACL), 2022) Akyürek; A.F.; Paik, S.; Koçyiğit, M.Y.; Akbıyık, S.; Wijaya, D.; Department of Psychology; Runyun, Şerife Leman; PhD Student; Department of Psychology; Graduate School of Social Sciences and HumanitiesLarge language models trained on a mixture of NLP tasks that are converted into a textto- text format using prompts, can generalize into novel forms of language and handle novel tasks. A large body of work within prompt engineering attempts to understand the effects of input forms and prompts in achieving superior performance. We consider an alternative measure and inquire whether the way in which an input is encoded affects social biases promoted in outputs. In this paper, we study T0, a large-scale multi-task text-to-text language model trained using prompt-based learning. We consider two different forms of semantically equivalent inputs: question-answer format and premise-hypothesis format. We use an existing bias benchmark for the former BBQ (Parrish et al., 2021) and create the first bias benchmark in natural language inference BBNLI with hand-written hypotheses while also converting each benchmark into the other form. The results on two benchmarks suggest that given two different formulations of essentially the same input, T0 conspicuously acts more biased in question answering form, which is seen during training, compared to premisehypothesis form which is unlike its training examples.Publication Open Access The ventral hippocampus CA3 is critical in regulating timing uncertainty in temporal decision-making(Elsevier, 2021) Çavdaroğlu, Bilgehan; Riaz, Sadia; Shi, Yuqing; Ito, Rutsuko; Department of Psychology; Balcı, Fuat; Faculty Member; Department of Psychology; KU Arçelik Research Center for Creative Industries (KUAR) / KU Arçelik Yaratıcı Endüstriler Uygulama ve Araştırma Merkezi (KUAR); Koç University Research Center for Translational Medicine (KUTTAM) / Koç Üniversitesi Translasyonel Tıp Araştırma Merkezi (KUTTAM); College of Social Sciences and Humanities; 51269Timing uncertainty is a critical component of temporal decision-making, as it determines the decision strategies that maximize reward rate. However, little is known about the biological substrates of timing uncertainty. In this study, we report that the CA3 subregion of the ventral hippocampus (vCA3), a relatively unexplored area in timing, is critical in regulating timing uncertainty that informs temporal decision making. Using a variant of the differential reinforcement of low rates of responding (DRL) task that incorporates differential levels of approach-avoidance conflict, rats were trained to wait a minimum of 6 s to earn a reward that was paired with varying durations of foot shock. Post-training chemogenetic inhibition of the vCA3 reduced timing uncertainty without affecting mean wait times, irrespective of the level of conflict experienced. Simulations based on the information-processing variant of scalar expectancy theory (SET) revealed that the vCA3 may be important in modulating decision threshold or switch closure latency variability. © 2021 The Author(s)The neural substrate of timing uncertainty, an inherent component of optimal temporal decision making, is not well known. Using a temporal decision-making task combined with chemogenetics, Çavdaroğlu et al. demonstrate that pyramidal cells in the CA3 subregion of the ventral hippocampus are important in modulating timing uncertainty.Publication Open Access Does time extend asymmetrically into the past and the future? a multitask crosscultural study(Cambridge University Press (CUP), 2022) Callizo-Romero, Carmen; Tutnjevic, Slavica; Pandza, Maja; Ouellet, Marc; Kranjec, Alexander; Ilic, Sladjana; Gu, Yan; Chahboun, Sobh; Casasanto, Daniel; Santiago, Julio; Department of Psychology; Göksun, Tilbe; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; 47278Does temporal thought extend asymmetrically into the past and the future? Do asymmetries depend on cultural differences in temporal focus? Some studies suggest that people in Western (arguably future-focused) cultures perceive the future as being closer, more valued, and deeper than the past (a future asymmetry), while the opposite is shown in East Asian (arguably past-focused) cultures. The proposed explanations of these findings predict a negative relationship between past and future: the more we delve into the future, the less we delve into the past. Here, we report findings that pose a significant challenge to this view. We presented several tasks previously used to measure temporal asymmetry (self-continuity, time discounting, temporal distance, and temporal depth) and two measures of temporal focus to American, Spanish, Serbian, Bosniak, Croatian, Moroccan, Turkish, and Chinese participants (total N = 1,075). There was an overall future asymmetry in all tasks except for temporal distance, but the asymmetry only varied with cultural temporal focus in time discounting. Past and future held a positive (instead of negative) relation in the mind: the more we delve into the future, the more we delve into the past. Finally, the findings suggest that temporal thought has a complex underlying structure.