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121.
122.
Clifford Williams 《The Southern journal of philosophy》1992,30(2):123-137
123.
Clifford R. Mynatt Michael E. Doherty William Dragan 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》1993,46(4):759-778
People routinely focus on one hypothesis and avoid consideration of alternative hypotheses on problems requiring decisions between possible states of the world--for example, on the “pseudodiagnosticity” task (Doherty, Mynatt, Tweney, & Schiavo, 1979). In order to account for behaviour on such “inference” problems, it is proposed that people can hold in working memory, and operate upon, but one alternative at a time, and that they have a bias to test the hypothesis they think true. In addition to being an ex post facto explanation of data selection in inference tasks, this conceptualization predicts that there are situations in which people will consider alternatives. These are:
1. “action” problems, where the alternatives are possible courses of action;
2. “inference” problems, in which evidence favours an alternative hypothesis.
Experiment 1 tested the first prediction. Subjects were given action or inference problems, each with two alternatives and two items of data relevant to each alternative. They received probabilistic information about the relation between one datum and one alternative and picked one value from among the other three possible pairs of such relations. Two findings emerged; (1) a strong tendency to select information about only one alternative with inferences; and (2) a strong tendency, compared to inferences, to select information about both alternatives with actions.
Experiment 2 tested the second prediction. It was predicted that data suggesting that one alternative was incorrect would lead many subjects to consider, and select information about, the other alternative. For actions, it was predicted that this manipulation would have no effect. Again the data were as predicted. 相似文献
1. “action” problems, where the alternatives are possible courses of action;
2. “inference” problems, in which evidence favours an alternative hypothesis.
Experiment 1 tested the first prediction. Subjects were given action or inference problems, each with two alternatives and two items of data relevant to each alternative. They received probabilistic information about the relation between one datum and one alternative and picked one value from among the other three possible pairs of such relations. Two findings emerged; (1) a strong tendency to select information about only one alternative with inferences; and (2) a strong tendency, compared to inferences, to select information about both alternatives with actions.
Experiment 2 tested the second prediction. It was predicted that data suggesting that one alternative was incorrect would lead many subjects to consider, and select information about, the other alternative. For actions, it was predicted that this manipulation would have no effect. Again the data were as predicted. 相似文献
124.
Ruth Anderson Stephanie J. Hanrahan Clifford J. Mallett 《Journal of Applied Sport Psychology》2013,25(3):318-333
The aim of this study was to investigate the optimal psychological state for peak performance in Australian elite athletes. World championship and Olympic athletes (n = 17) and coaches (n = 6) from rowing, swimming, and diving were interviewed about the psychological states that contribute to peak performance. Results indicated that peak performance is characterized by the automatic execution of performance. A proposed model for the optimal psychological state identifies self-regulation, control, and trust as processes that assist athletes to transition from experiencing a diversity of psychological factors during competition to the automatic psychological state of peak performance. 相似文献
125.
To construct a coherent percept of the world, the brain continuously combines information across multiple sensory modalities. Simple stimuli from different modalities are usually assumed to be processed in distinct brain areas. However, there is growing evidence that simultaneous stimulation of multiple modalities can influence the activity in unimodal sensory areas and improve or impair performance in unimodal tasks. Do these effects reflect a genuine cross-modal integration of sensory signals, or are they due to changes in the perceiver's ability to locate the stimulus in time and space? We used a behavioral measure to differentiate between these explanations. Our results demonstrate that, under certain circumstances, a noninformative flash of light can have facilitative or detrimental effects on a simple tactile discrimination. The effect of the visual flash mimics that produced by a constant tactile pedestal stimulus. These findings reveal that sensory signals from different modalities can be integrated, even for perceptual judgments within a single modality. 相似文献
126.
Reedtz C Bertelsen B Lurie J Handegård BH Clifford G Mørch WT 《Scandinavian journal of psychology》2008,49(1):31-38
This article presents the first Norwegian standardization of an assessment tool specifically designed to measure childhood conduct problems. Norwegian norms for the Eyberg Child Behavior Inventory (ECBI) based on data obtained from a random population sample (N= 4063) of children in the age range of 4 to 12 years are presented. The sample was drawn from rural and urban areas within three Norwegian town districts. Clinical and research advantages of having a properly standardized assessment tool for this specific subclass of childhood psychiatric problems in Norway are discussed. 相似文献
127.
Calder AJ Jenkins R Cassel A Clifford CW 《Journal of experimental psychology. General》2008,137(2):244-261
To date, there is no functional account of the visual perception of gaze in humans. Previous work has demonstrated that left gaze and right gaze are represented by separate mechanisms. However, these data are consistent with either a multichannel system comprising separate channels for distinct gaze directions (e.g., left, direct, and right) or an opponent-coding system in which all gaze directions are coded by just 2 pools of cells, one coding left gaze and the other right, with direct gaze represented as a neutral point reflecting equal activation of both left and right pools. In 2 experiments, the authors used adaptation procedures to investigate which of these models provides the optimal account. Both experiments supported multichannel coding. Previous research has shown that facial identity is coded by an opponent-coding system; hence, these results also demonstrate that gaze is coded by a different representational system to facial identity. 相似文献
128.
Mary Montgomery Clifford 《Zygon》2004,39(1):103-110
An analysis of Paul Tillich's three‐volume Systematic Theology and Pitirim A. Sorokin's The Ways and Power of Love: Types, Factors, and Techniques of Moral Transformation reveals how a metaphysical dialogue on God and love contributes to scientific and theological scholarship on altruism. This article focuses on similarities and differences in Tillich and Sorokin. Similarities include a belief in the importance of the ontological/love connection and the conclusion that a special state, ecstasy, is integral to the experience of genuine love. Differences serve to complement rather than negate. For example, Tillich's recognition that ecstatic connections with the divine within finitude are fragmentary balances Sorokin's view that these ecstatic peaks are reached only by the few. The similarities give resonance and point to the overall creation, while the differences often serve as counterpoint to balance the ideas of the scientist and the theologian. 相似文献
129.
Gavin Nobes Derek G. Moore Alan E. Martin Brian R. Clifford George Butterworth Georgia Panagiotaki Michael Siegal 《Developmental science》2003,6(1):72-85
Children's understanding of properties of the earth was investigated by interviewing Asian and white British classmates aged 4?8 years (N = 167). Two issues were explored: whether they held mental models of the earth ( Vosniadou & Brewer, 1992 ) or instead had fragmented knowledge ( di Sessa, 1988 ); and the influence of the children's different cultural backgrounds. Children selected from a set of plastic models and answered forced‐choice questions. Using this methodology, there were no significant differences in the overall performance of Asian and white children after language skills were partialled out. Even young children showed an emerging knowledge of some properties of the earth, but the distributions of their combinations of responses provided no evidence that they had mental models. Instead, these distributions closely resembled those that would be expected if children's knowledge in this domain were fragmented. Possible reasons for the differences between these findings and those of previous research are discussed. 相似文献
130.