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Now showing 1 - 10 of 62
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    A decision model of timing
    (Elsevier Science Bv, 2016) Simen, Patrick; Department of Psychology; Balcı, Fuat; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; 51269
    The fundamental assumption of pacemaker accumulator models of interval timing is that timed behavior relies on the accumulation of brain-derived clock signals. Following this theoretical tradition, a recent series of interval timing models has formulated the processing dynamics of timing behavior within the drift-diffusion decision theoretic framework, which has been traditionally applied to explain accuracy and response times in perceptual decision making. The generative processes assumed by these models and their key features can be implemented by neural populations given simple assumptions, and their predictions have received recent support from electrophysiological studies. This paper discusses the conceptual links of the diffusion model of interval timing to other prominent timing models and interprets recent electrophysiological evidence in relation to its predictions.
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    Ageing, working memory, and mental imagery: understanding gestural communication in younger and older adults
    (Sage Publications Ltd, 2021) N/A; Department of Psychology; Arslan, Burcu; Göksun, Tilbe; PhD Student; Faculty Member; Department of Psychology; Graduate School of Social Sciences and Humanities; College of Social Sciences and Humanities; N/A; 47278
    Ageing has effects both on language and gestural communication skills. Although gesture use is similar between younger and older adults, the use of representational gestures (e.g., drawing a line with fingers on the air to indicate a road) decreases with age. This study investigates whether this change in the production of representational gestures is related to individuals' working memory and/or mental imagery skills. We used three gesture tasks (daily activity description, story completion, and address description) to obtain spontaneous co-speech gestures from younger and older individuals (N = 60). Participants also completed the Corsi working memory task and a mental imagery task. Results showed that although the two age groups' overall gesture frequencies were similar across the three tasks, the younger adults used relatively higher proportions of representational gestures than the older adults only in the address description task. Regardless of age, the mental imagery but not working memory score was associated with the use of representational gestures only in this task. However, the use of spatial words in the address description task did not differ between the two age groups. The mental imagery or working memory scores did not associate with the spatial word use. These findings suggest that mental imagery can play a role in gesture production. Gesture and speech production might have separate timelines in terms of being affected by the ageing process, particularly for spatial content.
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    Author correction: combined inhibition of BET family proteins and histone deacetylases as a potential epigenetics-based therapy for pancreatic ductal adenocarcinoma
    (Nature Research, 2024) Mazur PK, Herner A, Mello SS, Wirth M, Hausmann S, Sánchez-Rivera FJ, Lofgren SM, Kuschma T, Hahn SA, Vangala D, Trajkovic-Arsic M, Gupta A, Heid I, Noël PB, Braren R, Kleeff J, Sipos B, Sayles LC, Heikenwalder M, Heßmann E, Ellenrieder V, Esposito I, Jacks T, Bradner JE, Khatri P, Sweet-Cordero EA, Attardi LD, Schmid RM, Schneider G, Sage J, Siveke JT.; Koç University Hospital
    In the originally published version of this article, there were errors in the histological sections depicted in Supplementary Figs. 4 and 10. Specifically: In Supplementary Fig. 4, the image of the Ki67 immunohistochemistry (IHC) for the Gemcitabine+JQ1 group was incorrect In Supplementary Fig. 10, the pSTAT3 image for the IHC for the JQ1 group was incorrect In Supplementary Fig. 10, Ki67 and MYC IHC images for JQ1 and JQ1+SAHA were swapped In Supplementary Fig. 4, the image of the Ki67 immunohistochemistry (IHC) for the Gemcitabine+JQ1 group was incorrect In Supplementary Fig. 10, the pSTAT3 image for the IHC for the JQ1 group was incorrect In Supplementary Fig. 10, Ki67 and MYC IHC images for JQ1 and JQ1+SAHA were swapped The original data were available and these errors have been corrected in the Supplementary Information accompanying this notice. Additionally, the authors wish to clarify that the Sirius Red staining for the control and JQ1 groups were identical in both Supplementary Figs. 4 and 10 because the control mice (JQ1 only or control treatment) were shared between experiments. To avoid confusion, the sections depicting Sirius Red staining for the control and JQ1 groups in Supplementary Fig. 4 were replaced with alternative sections from the same respective samples
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    Autobiographical and event memory for 9/11: changes across one year
    (Wiley, 2003) Tekcan, Ali İzzet; Ece, Berivan; Er, Nurhan; Department of Psychology; Gülgöz, Sami; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; 49200
    We tested Turkish participants' (n = 483) autobiographical and event memory for the events of September 11, 2001 3 days, 6 months, and 1 year after the event. The amount of autobiographical detail participants reported was very high after one year. The accuracy of event memory was moderate at 3 days, and declined sharply by 6 months. The consistency of autobiographical memory was higher than that of event memory at all time lags; however, there was no interaction between time lag and memory type. The data also provided partial support for Pezdek's (2003) conceptualization that the degree of involvement has different effects on event and autobiographical memory. Copyright (C) 2003 John Wiley Sons, Ltd.
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    Autobiographical phenomenology of memories of fiction
    (Routledge Journals, Taylor and Francis Ltd, 2024) Department of Psychology; Çetin, Osman Görkem; Gülgöz, Sami; Department of Psychology; Graduate School of Social Sciences and Humanities; College of Social Sciences and Humanities
    Most autobiographical memories are based on real-life experiences, but memories of fiction have many similarities to real-life autobiographical memories. However, the phenomenological nature of this similarity, the potential differences between media types, and the role of individual differences need further investigation. Based on previous findings, we expected differences between media types on emotional intensity, sensory vividness, and confidence about the recall. To provide insight into these issues, we collected one real-life autobiographical memory and one memory of fiction (book, film, or video game) from 291 participants. We asked them to rate their memories phenomenologically. The participants also provided information regarding their motivations for engaging with fictional stories. Our results show phenomenological differences in several dimensions between media types and differences in the similarity of media types to real-life memories. While absorption seems to be a good predictor for immersion, escapism tendency is a motivation to engage with fiction frequently.
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    Bilingual's logical inference-making and language tagging
    (Koç University, 2021) Yurtsever, Aslı; Gülgöz, Sami; 0000-0002-1262-2347; Koç University Graduate School of Social Sciences and Humanities; Psychology; 49200
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    Biomaterials for improving the blood and tissue compatibility of total artificial hearts (TAH) and ventricular assist devices (VAD)
    (Woodhead Publ Ltd, 2011) N/A; Department of Mechanical Engineering; Erbulut, Deniz Ufuk; Lazoğlu, İsmail; Researcher; Faculty Member; Department of Mechanical Engineering; School of Medicine; College of Engineering; 37661; 179391
    This chapter reviews biomaterials used for artificial hearts and ventricular assist devices. the chapter identifies some of the commercially available cardiac devices and the materials used within, stretching the most important polymers, metals and ceramics. It then discusses the interaction between blood/tissue and biomaterials and subsequently the way of refinement of biomaterials in order to achieve optimum performance. the chapter includes also the evaluation of biomaterials in terms of their blood and tissue compatibility and related international standards.
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    Carving the world for language: how neuroscientific research can enrich the study of first and second language learning
    (Routledge Journals, Taylor & Francis Ltd, 2014) George, Nathan R.; Hirsh-Pasek, Kathy; Golinkoff, Roberta Michnick; Department of Psychology; Göksun, Tilbe; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; 47278
    Linguistics, psychology, and neuroscience all have rich histories in language research. Crosstalk among these disciplines, as realized in studies of phonology, is pivotal for understanding a fundamental challenge for first and second language learners (SLLs): learning verbs. Linguistic and behavioral research with monolinguals suggests that infants attend to foundational event components (e.g., path, manner). Language then heightens or dampens attention to these components as children map word to world in language-specific ways. Cross-linguistic differences in semantic organization also reveal sources of struggles for SLLs. We discuss how better integrating neuroscience into this literature can unlock additional mysteries of verb learning.
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    Characteristics and functions of predictive and directive memories and forecasts
    (Wiley, 2024) Department of Psychology; Ay, Demet; Gülgöz, Sami; Department of Psychology; College of Social Sciences and Humanities
    Earlier research focused on three functions of recollecting the past self, social, and directive functions, but few studies examined the characteristics of events serving these functions. Moreover, research has neglected the function of prediction, which refers to predicting the future by recollecting the past. The current study distinguished the predictive function from the directive function and aimed to characterize memories and future events serving different functions by employing function prompts as cues. In addition, the frequency of using function-cued memories for the other functions was measured. Results showed that predictive and directive function ratings of the predictive function cued events were significantly different. However, directive events served the predictive function as frequently as the directive function, indicating that the predictive function is a prerequisite for future planning conceptualized under the directive function. The results are indicative of a distinct predictive function and considerable overlap between functions of memories.
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    Consistency of adults' earliest memories across two years
    (Routledge Journals, Taylor & Francis Ltd, 2019) Ece, Berivan; Demiray, Burcu; Department of Psychology; Gülgöz, Sami; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; 49200
    The consistency of earliest memories in content, dating, and memory qualities was investigated. A total of 84 (27 males; M-age = 24.93, SD = 1.36) adults reported earliest memories, estimated ages, and rated their recollections on memory qualities with a two-year time lag. At Time 2, their original reports at Time 1 were presented and they were asked to report whether the earliest memories they recalled at Time 2 were the same. Fifty-six per cent of the participants reported the same earliest memories and those remembering the same events had earlier memories than those remembering different ones. Although no significant differences were observed in estimated ages on the basis of mean ages, a predating bias of later memories and a tendency to postdate earlier memories were observed on the basis of a 48-month cut-off point. Thus, how the data is analysed is critical in detecting dating biases or errors affecting conclusions and interpretations about the dating consistency of earliest memories. Finally, memory qualities of earliest memories displayed a high level of consistency with a two-year time lag regardless of remembering the same versus different event.