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71.
In visual search, observers make decisions about the presence or absence of a target based on their perception of a target during search. The present study investigated whether decisions can be based on observers’ expectation rather than perception of a target. In Experiment 1, participants were allowed to make target-present responses by clicking on the target or, if the target was not perceived, a target-present button. Participants used the target-present button option more frequently in difficult search trials and when target prevalence was high. Experiment 2 and 3 employed a difficult search task that encouraged the use of prevalence-based decisions. Target presence was reported faster when target prevalence was high, indicating that decisions were, in part, cognitive, and not strictly perceptual. A similar pattern of responses were made even when no targets appeared in the search (Experiment 3). The implication of these prevalence-based decisions for visual search models is discussed. 相似文献
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73.
Klaus E. Grossmann 《The Journal of genetic psychology》2013,174(2):171-182
The sensory modality of a task and the modality of a retroactive interfering activity were systematically covaried in order to test Connolly and Jones' and Pick's translation models of intersensory functioning. Forty 10-year-old boys and girls were asked to recall distance and location cues of length under intrasensory and intersensory task conditions (visual and kinesthetic). Visual and kinesthetic interpolated activities were used in an attempt to provide modality specific interference with the recall of length under the various sensory task conditions. Results of the data analyses provided no support for the Connolly and Jones model of modality specific storage with translation. Rather, the findings of the study were interpreted as supportive of Pick's hypothesis which emphasizes the coding of stimulus information (regardless of modality of input) into a form specific to whatever modality is specialized for detection of the information. 相似文献
74.
Social issues (e.g., partisan politics, economic decisions, and interpersonal conflicts) often involve trade‐offs, necessitating the consideration of multiple interests. Such issues do not have simple answers and benefit from wise reasoning—a set of metacognitive strategies that guide people toward managing complexity and balancing different interests. We review recent advances in research on wise reasoning, including evidence pertinent to the question of wisdom's trait‐like and state‐specific features, how it varies across situations, and how one can develop it. Overall, empirical studies suggest that researchers can understand wisdom better by paying attention to its situated nature across time and contexts. 相似文献
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Igor Hanzel 《Journal for General Philosophy of Science》2008,39(2):273-301
The paper tries to provide an alternative to Hempel’s approach to scientific laws and scientific explanation as given in his
D-N model. It starts with a brief exposition of the main characteristics of Hempel’s approach to deductive explanations based
on universal scientific laws and analyzes the problems and paradoxes inherent in this approach. By way of solution, it analyzes
the scientific laws and explanations in classical mechanics and then reconstructs the corresponding models of explanation,
as well as the types of scientific laws appearing in it. Finally, it compares this reconstruction with the approaches of J.
Woodward and C. Hitchcock, C. Liu and with the views of M. Thalos on analytic mechanics.
相似文献
Igor HanzelEmail: |
78.
Shapes on the surface of a perspective picture may be misperceived. Subjects picked a match for an ellipse depicting the circular top of a cylinder. The top was depicted as tilted forward from 5 degrees to 85 degrees, generating a series of ellipses on the picture surface. The matches were biased towards a circle over a wide range of midrange tilts, which suggests that, influenced by features of perspective, they were seen as in-between the shape on the surface and the shape they depicted. 相似文献
79.
A mathematical model is described based on the first order system transfer function in the form Y=B3∗exp(−B2∗(X−1))+B4∗(1−exp(−B2∗(X−1))), where X is the learning session number; Y is the quantity of errors, B2 is the learning rate, B3 is resistance to learning and B4 is ability to learn. The model is tested in a light-dark discrimination learning task in a 3-arm radial maze using Wistar and albino rats. The model provided good fits of experimental data under acquisition and reacquisition, and was able to detect strain differences among Wistar and albino rats. The model was compared to Rescorla-Wagner, and was found to be mutually complementary. Comparisons with Tulving’s logarithmic function and Valentine’s hyperbola and the arc cotangent functions are also provided. Our model is valid for fitting averaged group data, if averaging is applied to a subgroup of subjects possessing individual learning curves of an exponential shape. 相似文献
80.
The authors review theory and empirical research on the characteristics of memories for traumatic versus emotional events, with the goal of bringing together the cognitive and clinical perspectives on this issue. They consider the most important approaches to the study of traumatic and emotional memory and summarize the results of recent studies that have compared autobiographical recollections of traumatic and nontraumatic emotional experiences (positive and negative), either in nonclinical or clinical samples. Overall, findings from the current empirical literature are inconsistent. Although some researchers have found that traumatic memories are retrieved differently than are emotional memories, others have demonstrated that the phenomenological characteristics of these memory types are highly similar. The authors discuss methodological issues that could help researchers to interpret the inconsistencies found in the empirical findings. Last, they suggest possible directions for future research that may advance researchers' knowledge of memory, trauma, and emotion. 相似文献