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91.
Dowman M 《Cognitive Science》2007,31(1):99-132
An expression-induction model was used to simulate the evolution of basic color terms to test Berlin and Kay's (1969) hypothesis that the typological patterns observed in basic color term systems are produced by a process of cultural evolution under the influence of biases resulting from the special properties of universal focal colors. Ten agents were simulated, each of which could learn color term denotations by generalizing from examples using Bayesian inference, and for which universal focal red, yellow, green, and blue were especially salient, but unevenly spaced in the perceptual color space. Conversations between these agents, in which agents would learn from one another, were simulated over several generations, and the languages emerging at the end of each simulation were investigated. The proportion of color terms of each type correlated closely with the equivalent frequencies found in the World Color Survey, and most of the emergent languages could be placed on one of the evolutionary trajectories proposed by Kay and Maffi (1999). The simulation therefore demonstrates how typological patterns can emerge as a result of learning biases acting over a period of time. 相似文献
92.
The Posttraumatic Cognitions Inventory (PTCI) assesses cognitions hypothesised to be associated with poor recovery from traumatic experiences and the maintenance of PTSD. The validity of the PTCI has received good support but doubts have been raised about its Self-BLAME subscale. The main aim of the present study was to test the ability of the PTCI subscales to discriminate between traumatised individuals with and without PTSD and to predict posttraumatic symptom severity. Participants (N=63) who had experienced a traumatic event were recruited via the media and completed the PTCI and self-report measures of PTSD and depression symptoms. Full criteria for a diagnosis of PTSD were met by 37 but not by the other 26. There were significant differences between these two groups on the total PTCI score and the Negative Cognitions About SELF and the Negative Cognitions About the WORLD subscales, but not on the Self-BLAME subscale. The two groups were discriminated by the PTCI subscales with 65% accuracy and the multiple correlation (R=.68) between the subscales and posttraumatic symptom severity was highly significant. However, in these analyses, higher scores on the Self-BLAME subscale were associated with less risk of a diagnosis of PTSD and with less posttraumatic symptomatology. Possible interpretations of these results, in terms of statistical suppressor effects and the protective role of behavioural self-blame, are discussed. 相似文献
93.
94.
Scholz U La Marca R Nater UM Aberle I Ehlert U Hornung R Martin M Kliegel M 《Neurobiology of learning and memory》2009,91(1):89-92
Acute stress has been found to have negative and implementation intentions (IIs) to have positive effects on cognitive performance. This study was the first to examine the effects of IIs on executive action control under acute psychosocial stress. Forty-two male subjects aged 21-39 years were randomly assigned to the Trier Social Stress Test (TSST) versus a rest condition. In addition, the instruction to the executive task (a go no-go task) was manipulated (IIs versus standard instruction). After the stress test, a dual-task procedure including a go no-go task was conducted. The TSST resulted in increases in cortisol response, heart rate and state anxiety compared to the rest condition. Acute stress significantly impaired go no-go performance, but only in the group without IIs. We conclude that under acute stress conditions executive functioning is reduced, but the use of IIs can be an effective strategy to overcome this negative effect. 相似文献
95.
Fiona Gillison Mike Osborn Martyn Standage Suzanne Skevington 《Psychology of sport and exercise》2009,10(3):309-319
ObjectivesThe present study explored the experience of introjected regulation (i.e. a controlling motivational regulation in which people act due to internal pressures that are regulated by contingent self-esteem; [Ryan, R. M., & Deci, E. L. (2000). Intrinsic and extrinsic motivations: classic definitions and new directions. Contemporary Educational Psychology, 25, 54–56]) in relation to sport and exercise in mid-adolescence.MethodsAdolescents reporting strong introjected regulation of sport and/or exercise relative to their peers were identified using quantitative questionnaires, and invited for interview. Semi-structured interviews were recorded with 10 boys and 8 girls (mean age 14 years), transcribed verbatim, and analysed using an interpretive phenomenological approach.ResultsIntrojected regulation accompanied high levels of self-determined motivation, and was associated with high levels of physical activity in the present sample. Two major themes emerged: (i) gender differences in the basis for introjected regulation; and (ii) differences in the reasons and goals underpinning self-determined versus introjected regulations for exercise. In boys, introjected regulation was largely related to social factors, such as avoiding social disapproval and attaining ego enhancement. Girls rarely exercised with their friends, and introjected regulation more commonly reflected the partial internalization of a health and fitness rationale. In many cases, self-determined and introjected regulations were underpinned by different goals or reasons, supporting the importance of assessing an individual's multiple motives towards activities.ConclusionsIntrojected regulation for exercise was associated with higher than expected levels of participation in sport and exercise, regardless of whether it was founded on contingent self-worth, or the partial internalization of adaptive reasons for exercise. The implications of social control on future exercise participation are discussed. 相似文献
96.
97.
Realizing complex delayed intentions in young and old adults: The role of planning aids 总被引:1,自引:0,他引:1
Although it has been suggested that the delayed realization of intended actions should benefit from appropriate intention planning, empirical evidence on this issue is scarce. In three experiments, we examined whether and which planning aids provided in the intention formation phase affect delayed intention realization in young and old adults. One finding was that intention planning directly affected delayed intention realization: instructing participants to include the cue for appropriate intention initiation in their plans benefited delayed performance. Another finding was that older adults' performance was improved when they were guided in structuring their plan in combination with guidance in implementing this plan after a delay. In sum, the results point to the importance of plan-related factors for understanding the delayed realization of intended actions. 相似文献
98.
Ellis R Tucker M Symes E Vainio L 《Journal of experimental psychology. Human perception and performance》2007,33(3):670-691
Four experiments are described in which 1 visual object (the target) was selected from another (the distractor) according to its color (Experiments 1, 2, and 4) or its relative location (Experiment 3) and then was classified according to a simple geometric property. Object classification was signaled as fast as possible by a precision or power grip response, and this grip was either compatible or incompatible with either object. When targets were selected by color, target-compatible grip responses were facilitated, but distractor-compatible grip responses were impaired. When targets were selected by location, similar results were obtained for target-compatible grip responses, but not distractor-compatible grip responses. These data are explained in terms of the involvement of action codes in object-level selection. 相似文献
99.
100.
Barbara Wise Richard Olson Mike Anstett Lauralyn Andrews Maureen Terjak Vivian Schneider Julie Kostuch Laura Kriho 《Behavior research methods》1989,21(2):173-180
This paper discusses hardware choices, software developments, implementation issues, and preliminary results from an ongoing long-term remedial reading study. Reading-disabled children read books on microcomputers linked to speech synthesizers, obtaining speech feedback on difficult words at whole-word, syllable, or subsyllable levels of segmentation. Word-recognition ability and attitude about reading improved for children using the system. In addition, segmented feedback especially benefited phonological word-decoding skills for most of the children. 相似文献