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Permanent URI for this collectionhttps://hdl.handle.net/20.500.14288/3

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    Autobiographical memory for repeated events: remembering our vacations
    (Routledge Journals, Taylor and Francis Ltd, 2021) Department of Psychology; Department of Psychology; Usta, Berivan Ece; Gülgöz, Sami; Teaching Faculty; Faculty Member; Department of Psychology; College of Social Sciences and Humanities College of Social Sciences and Humanities; 201110; 49200
    We aimed to explore autobiographical memory for repeated events. for that aim, five instances of the same event category (i.e. last, first, random, distinct, and typical vacation) were collected from 57 (32 females) adults (M-age = 21.8; SDage = 2.0). Participants also provided the vacation scripts they have in mind. the last instances were expected to be highest in script consistency whereas the first instances would be the lowest due to duration between encoding and retrieval in addition to the frequency of potential script updates. We predicted that random instances selected freely by the participants would display high script-consistency due to ease of access. Finally, distinct instances would vary in their script consistency to the extent that they deviate from a script-consistent vacation experience. Overall, results were in line with the predictions. Findings are discussed in the context of the schema pointer plus tag model and the dynamic memory model.
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    Embodiment of abstract categories in space ... grounding or mere compatibility effects? The case of politics
    (Elsevier, 2016) Farias, Ana Rita; Garrido, Margarida; Department of Psychology; Semin, Gün Refik; Researcher; Department of Psychology; College of Social Sciences and Humanities; N/A
    In two experiments, the role played by stimulus response compatibility in driving the spatial grounding of abstract concepts is examined. In Experiment 1, participants were asked to classify politics-related words appearing to the left or the right side of a computer monitor as socialist or conservative. Responses were given by pressing vertically aligned keys and thus orthogonal to the spatial information that may have been implied by the words. Responses given by left or right index finger were counterbalanced. In Experiment 2, a lexical decision task, participants categorized political words or non-words presented to the left or the right auditory channels, by pressing the top/bottom button of a response box. The response category labels (word or non-word) were also orthogonal to the spatial information that may have been implied by the stimulus words. In both experiments, responses were faster when socialism-related words were presented on the left and conservatism-related words were presented on the right, irrespective of the reference of the response keys or labels. Overall, our findings suggest that the spatial grounding of abstract concepts (or at least politics-related ones) is independent of experimentally driven stimulus-response compatibility effects. (C) 2016 Elsevier B.V. All rights reserved.
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    Decision processes in temporal discrimination
    (Elsevier, 2014) Simen, Patrick; Department of Psychology; Balcı, Fuat; Faculty Member; Department of Psychology; College of Social Sciences and Humanities; 51269
    The processing dynamics underlying temporal decisions and the response times they generate have received little attention in the study of interval timing. In contrast, models of other simple forms of decision making have been extensively investigated using response times, leading to a substantial disconnect between temporal and non-temporal decision theories. An overarching decision-theoretic framework that encompasses existing, non-temporal decision models may, however, account both for interval timing itself and for time-based decision-making. We sought evidence for this framework in the temporal discrimination performance of humans tested on the temporal bisection task. In this task, participants retrospectively categorized experienced stimulus durations as short or long based on their perceived similarity to two, remembered reference durations and were rewarded only for correct categorization of these references. Our analysis of choice proportions and response times suggests that a two-stage, sequential diffusion process, parameterized to maximize earned rewards, can account for salient patterns of bisection performance. The first diffusion stage times intervals by accumulating an endogenously noisy clock signal; the second stage makes decisions about the first-stage temporal representation by accumulating first-stage evidence corrupted by endogenous noise. Reward-maximization requires that the second-stage accumulation rate and starting point be based on the state of the first-stage timer at the end of the stimulus duration, and that estimates of non-decision-related delays should decrease as a function of stimulus duration. Results are in accord with these predictions and thus support an extension of the drift-diffusion model of static derision making to the domain of interval timing and temporal decisions.