This paper initiates a dialogue between the sustainable system-of-systems (SSoS) approach and one particular situated approach of activity analysis within francophone activity-centered ergonomics (FACE). This paper explores the possible cross-fertilizations between FACE and SSoS in coping with the challenge of enlargement which ergonomists have to face in order to address sustainability issues. We present how the SSoS model and FACE have currently considered the challenges of sustainable development and the theoretical-methodological principles that frame their approaches. Then, eight topics of dialogue are introduced and debated in order to open the dialogue between the two approaches where emerging lines of convergence are generated. We conclude by further discussing the complementarity between FACE and SSoS in the objectives of their approaches and the levels analysed by each approach, and by highlighting the importance of taking into account the emergent and complex aspects of systems. One possible way forward might be to “situate the sustainable system-of-systems” while also “systemizing systems of sustainable situations” for the future. 相似文献
The study of multi‐cue judgment investigates how decision makers aggregate cues to predict the value of a criterion variable. We consider a multi‐cue judgment task in which decision makers have prior knowledge of inter‐cue relationships but are ignorant of how the cues correlate with the criterion. In this setting, a naive judgment strategy prescribes weighting the cues equally. Although many participants are well described via an equal weighting scheme, we find that a substantial minority of participants make predictions consistent with a weighting scheme based on a low‐dimensional projection of the cue space that optimally takes into account inter‐cue correlations. The use of such a weighting scheme is consistent with minimizing maximal error in prediction when the cue‐criterion relationships are unknown. 相似文献
This study investigates abstracted processes and introduces a new prototype abstraction model adapted to estimation tasks. This prototype abstraction model assumes that the processing of whole exemplar patterns supports the detection of the underlying statistics necessary for the abstraction of two extreme prototypes on the continuous criterion dimension of the task. The prototypes are stored in memory as valid reference points for future similarity-based judgments. This prototype model was compared with the cue abstraction model, which assumes that people abstract cue weights in learning and add the cue information from exemplars to infer their criterion values varying on the continuous dimension. This study hypothesises that the training mode and the number of exemplars in training interact and affect subsequent model performance at test. The results from an experiment confirmed this hypothesis and showed that observational training supports an efficient prototype abstraction and feedback training supports an efficient cue abstraction. 相似文献
This study investigated the effect of a driver-training tool that uses “HazardTouch” software and videos of actual accidents on drivers’ eye fixation through a tablet device (iPad). Drivers’ eye fixation of a video of a car passing thirteen intersections without signals was measured before and after training, using an eye-mark recorder. Three training exposures of four scenes using HazardTouch improved drivers’ eye fixation on the stimulus movie. In particular, the first fixation on the edge of the blind spot at intersections appeared significantly sooner after training. Moreover, fixation frequency for this blind spot increased significantly at post-training. These results suggest that the proposed driver-training tool effectively improves eye-fixation behavior in drivers and may prevent accidents. 相似文献
We used a cue‐generation and a cue‐selection paradigm to investigate the cues children (9‐ to 12‐year‐olds) and young adults (17‐year‐olds) generate and select for a range of inferences from memory. We found that children generated more cues than young adults, who, when asked why they did not generate some particular cues, responded that they did not consider them relevant for the task at hand. On average, the cues generated by children were more perceptual but as informative as the cues generated by young adults. When asked to select the most informative of two cues, both children and young adults tended to choose a hidden (i.e., not perceptual) cue. Our results suggest a developmental change in the cuebox (i.e., the set of cues used to make inferences from memory): New cues are added to the cuebox as more cues are learned, and some old, perceptual cues, although informative, are replaced with hidden cues, which, by both children and young adults, are generally assumed to be more informative than perceptual cues. 相似文献
Recent studies underscore the importance of studying d-cycloserine (DCS) augmentation under conditions of adequate cue exposure treatment (CET) and protection from reconditioning experiences. In this randomized trial, we evaluated the efficacy of DCS for augmenting CET for smoking cessation under these conditions.
Sixty-two smokers attained at least 18 hours abstinence following 4 weeks of smoking cessation treatment and were randomly assigned to receive a single dose of DCS (n=30) or placebo (n=32) prior to each of two sessions of CET. Mechanistic outcomes were self-reported cravings and physiologic reactivity to smoking cues. The primary clinical outcome was 6-week, biochemically-verified, continuous tobacco abstinence.
DCS, relative to placebo, augmentation of CET resulted in lower self-reported craving to smoking pictorial and in vivo cues (d = 0.8 to 1.21) in a relevant subsample of participants who were reactive to cues and free from smoking-related reconditioning experiences. Select craving outcomes were correlated with smoking abstinence, and DCS augmentation was associated with a trend toward a higher continuous abstinence rate (33% vs. 13% for placebo augmentation).
DCS augmentation of CET can significantly reduce cue-induced craving, supporting the therapeutic potential of DCS augmentation when applied under appropriate conditions for adequate extinction learning. 相似文献
The phenomenon of insight is frequently characterized by the experience of a sudden and certain solution. Anecdotal accounts suggest that insight frequently occurs after the problem solver has taken some time away from the problem (i.e., incubation). However, the mechanism by which incubation may facilitate insight problem‐solving remains unclear. Here, we used compound remote associates problems to explore the likely mechanisms by which incubation may facilitate problem‐solving. First, we manipulated problem fixation to explore whether forgetting can explain incubation effects. Second, leveraging previous work linking the experience of insight to unconscious semantic integration, we asked participants to report their experience of insight after each problem solution, including problems solved after a period of distracted incubation. We hypothesized that incubation was not principally important for forgetting but rather frequently causes a shift to a more unconscious semantic integration strategy. Consistent with this we found that initial problem fixation did not predict the improvement in problem‐solving after incubation and that participants were more likely to report insight on problems solved after incubation. Our findings suggest that incubation may facilitate insight problem‐solving leading to a mind‐set shift to a more unconscious problem‐solving strategy involving semantic integration. 相似文献