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771.
Convolutional neural networks (CNNs) are increasingly widely used in psychology and neuroscience to predict how human minds and brains respond to visual images. Typically, CNNs represent these images using thousands of features that are learned through extensive training on image datasets. This raises a question: How many of these features are really needed to model human behavior? Here, we attempt to estimate the number of dimensions in CNN representations that are required to capture human psychological representations in two ways: (1) directly, using human similarity judgments and (2) indirectly, in the context of categorization. In both cases, we find that low-dimensional projections of CNN representations are sufficient to predict human behavior. We show that these low-dimensional representations can be easily interpreted, providing further insight into how people represent visual information. A series of control studies indicate that these findings are not due to the size of the dataset we used and may be due to a high level of redundancy in the features appearing in CNN representations. 相似文献
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Brandon Peterson 《Modern Theology》2015,31(1):1-26
Schema XIII (eventually Gaudium et Spes) occasioned somewhat of a split within the “progressive majority” at Vatican II. This article considers one side of this divide via the contributions and objections of Karl Rahner and Joseph Ratzinger, two of the text's most salient critics. After reviewing the history of Schema XIII, I demonstrate that both theologians reacted to it with very similar concerns which centered upon the issue of nature and grace. However, their differing approaches to anthropology and Christology caused their proposed remedies for the schema's shortcomings to diverge significantly. 相似文献
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Children participated in four role-plays designed to assess what the children themselves would do and what they would suggest a friend should do when encountering a medical procedure and a minor injury. Open-ended responses were coded into an empirically derived continuum suggested by past research. Similar responses were given to cope with medical procedures and injuries. However, children suggested more reactive coping strategies (e.g., cry, pull away) for themselves and more proactive responses (e.g., think of something fun, take deep breaths) for friends. This finding questions the assumption that children choose the most effective coping strategy in their repertoire when they themselves confront an aversive stimulus, suggesting that preparation for invasive procedures should include motivational components. 相似文献
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A computational modeling approach was used to test one possible explanation for the limited capacity of the subitizing phenomenon. Most existing models of this phenomenon associate the subitizing span with an assumed structural limitation of the human information processing system. In contrast, we show how this limit might emerge as the combinatorics of the space of enumeration problems interacts with the human cognitive architecture in the context of an enumeration task. Subitizing‐like behavior was generated in two different models of enumeration, one based on the ACT‐R cognitive architecture and the other based on the principles of parallel distributed processing (PDP). Our results provide good qualitative fits to results obtained in a variety of empirical studies. 相似文献
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Suicidality,Self‐Harm,and Body Dissatisfaction in Transgender Adolescents and Emerging Adults with Gender Dysphoria 下载免费PDF全文
Claire M. Peterson PhD Abigail Matthews PhD Emily Copps‐Smith MA Lee Ann Conard RPh DO MPH 《Suicide & life-threatening behavior》2017,47(4):475-482
Prevalence of suicide attempts, self‐injurious behaviors, and associated psychosocial factors were examined in a clinical sample of transgender (TG) adolescents and emerging adults (n = 96). Twenty‐seven (30.3%) TG youth reported a history of at least one suicide attempt and 40 (41.8%) reported a history of self‐injurious behaviors. There was a higher frequency of suicide attempts in TG youth with a desire for weight change, and more female‐to‐male youth reported a history of suicide attempts and self‐harm behaviors than male‐to‐female youth. Findings indicate that this population is at a high risk for psychiatric comorbidities and life‐threatening behaviors. 相似文献