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131.
The present study explored behavioral and eye-movement measures in unilateral neglect patients in response to online bisection task (unfilled gap line). Two different tasks supported the bisection performance, a pointing and a grasping strategy. It was explored whether these different strategies may influence subjects' behavioral and eye-movement measures in response to different segment features: segment length (from shorter to longer) and segment spatial dislocation (from right to left spatial location). Consistent spatial biases were found for both bisection responses, fixation count, and duration, as well as for the first fixation count in case of pointing task. An "extreme-left" gradient effect was suggested and discussed, with patients' behavioral and eye measures more impaired. On the contrary, the patients' performance overlaps with the controls' one in case a grasping task. The direct link of visual pointing and grasping strategy, respectively, with the two cortical ventral and dorsal pathways was adduced to explain our results. 相似文献
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Michel Ferrari Yasmine Abdelaal Shonali Lakhani Sargam Sachdeva Samia Tasmim Divya Sharma 《Journal of Adult Development》2016,23(4):204-213
This study explores cross-cultural differences in why Mohandas (Mahatma) Gandhi is nominated as an historical exemplar of wisdom. We compare the answers of emerging adults (aged 18–30) from three populations: Indian citizens, Canadian citizens, and Indian immigrants to Canada. Chi-square analyses showed that these groups emphasize significantly different aspects of Gandhi’s wisdom: Canadian citizens see Gandhi’s wisdom as practical and intellectual; Indian citizens see Gandhi’s wisdom as practical and benevolent; Indian immigrants to Canada consider Gandhi to integrate benevolent, intellectual, and practical aspects of wisdom; they also differ significantly in attributes associated with their implicit theory about his wisdom. Participants who know more about Gandhi also claim that he had a greater impact on their own lives. These findings suggest that historical exemplars of wisdom are filtered through the sociocultural contexts of each participant’s own lived experience, but that they still can be an inspiration in personally meaningful ways. 相似文献
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Scott C. Roesch Arianna A. Aldridge Stephanie N. Stocking Feion Villodas Queenie Leung Carrie E. Bartley 《Multivariate behavioral research》2013,48(5):767-789
This study used multilevel modeling of daily diary data to model within-person (state) and between-person (trait) components of coping variables. This application included the introduction of multilevel factor analysis (MFA) and a comparison of the predictive ability of these trait/state factors. Daily diary data were collected on a large (n = 366) multiethnic sample over the course of 5 days. Intraclass correlation coefficient for the derived factors suggested approximately equal amounts of variability in coping usage at the state and trait levels. MFAs showed that Problem-Focused Coping and Social Support emerged as stable factors at both the within-person and between-person levels. Other factors (Minimization, Emotional Rumination, Avoidance, Distraction) were specific to the within-person or between-person levels but not both. Multilevel structural equation modeling (MSEM) showed that the prediction of daily positive and negative affect differed as a function of outcome and level of coping factor. The Discussion section focuses primarily on a conceptual and methodological understanding of modeling state and trait coping using daily diary data with MFA and MSEM to examine covariation among coping variables and predicting outcomes of interest. 相似文献
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We propose a new method for the history of ideas that has none of the shortcomings so often ascribed to this approach. We call this method the model approach to the history of ideas. We argue that any adequately developed and implementable method to trace (dis)continuities in the history of human thought, or concept drift, will require that historians use explicit interpretive conceptual frameworks. We call these frameworks models. We argue that models enhance the comprehensibility of historical texts, and provide historians of ideas with a method that, unlike existing approaches, is susceptible neither to common holistic criticisms nor to Skinner's objections that the history of ideas yields arbitrary and biased reconstructions. To illustrate our proposal, we discuss the so-called Classical Model of Science and draw upon work in computer science and cognitive psychology. 相似文献
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A fundamental prerequisite for prey to avoid being captured is the ability to distinguish dangerous stimuli such as predators
and risky habitats from non-dangerous stimuli such as non-predators and safe locations. Most research to date has focused
on mechanisms allowing prey to learn to recognize risky stimuli. The paradox of learned predator recognition is that its remarkable
efficiency leaves room for potentially costly mistakes if prey inadvertently learn to recognize non-predatory species as dangerous.
Here, we pre-exposed embryonic woodfrogs, Rana sylvatica, to the odour of a tiger salamander, Ambystoma tigrinum, without risk reinforcement, and later try to teach the tadpoles to recognize the salamander, a red-bellied newt Cynops pyrrhogaster—a closely related amphibian, or a goldfish, Carassius
auratus, as a predator. Tadpoles were then tested for their responses to salamander, newt or fish odour. Pre-exposure to salamander
did not affect the ability of tadpoles to learn to recognize goldfish as a predator. However, the embryonic pre-exposure to
salamanders inhibited the subsequent learning of salamanders as a potential predator, through a mechanism known as latent
inhibition. The embryonic pre-exposure also prevented the learned recognition of novel newts, indicating complete generalization
of non-predator recognition. This pattern does not match that of generalization of predator recognition, whereby species learning
to recognize a novel predator do respond, but not as strongly, to novel species closely related to the known predator. The
current paper discusses the costs of making recognition mistakes within the context of generalization of predators and dangerous
habitats versus generalization of non-predators and safe habitats and highlights the asymmetry in which amphibians incorporate
information related to safe versus risky cues in their decision-making. Mechanisms such as latent inhibition allow a variety
of prey species to collect information about non-threatening stimuli, as early as during their embryonic development, and
to use this information later in life to infer the danger level associated with the stimuli. 相似文献