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131.
Gunnar Johansson 《Scandinavian journal of psychology》1960,1(1):65-68
An earlier experiment has shown a high degree of overestimation of small motion tracks as compared with static space perception. In the present paper this is hypothesized as the visual outcome of a central nerve process specific for motion stimulation. The hypothesis is submitted to a test in an attempt to show a possible binocular intereaction of the effect. The experiment demonstrated a significant binocular summation and thus supported the hypothesis. 相似文献
132.
133.
The purpose of this study was to examine the relation between motor development and spatial cognition. The sample was 20 children with Spina bifida (M age: 11.4 yr., SD = 1.7) and 20 healthy children as controls (M age: 11.8, SD = 1.8 yr.). An experimental assessment of motor development in spatial cognition in a simulated virtual maze by school-age children is lacking. In this study children with Spina bifida, who were impaired in walking since birth, completed four visuospatial tasks in a small-scale space (Mental Rotation, Water-Level Task, Embedded Figures Test, Visual Short-term Memory Test), and a spatial behaviour and knowledge task in a virtual maze. These children showed poorer performance than children in the control group on most measures. The results are discussed with respect to theoretical implications and further research. 相似文献
134.
The purpose of this paper is to demonstrate the usefulness of the concept of possibility, and not merely that of actuality, for an inquiry into the bodily constitution of experience. The paper will study how the possibilities of action that may
(or may not) be available to the subject help to shape the meaning attributed to perceived objects and to the situation occupied
by the subject within her environment. This view will be supported by reference to empirical evidence provided by recent and
current research on the perceptual estimation of distances and the effects brought about by the use of a tool on the organisation
of our perceived immediate space.
相似文献
Olivier GapenneEmail: |
135.
Most research on organizational changes in working life, including downsizing, focuses on the negative attitudes and negative consequences of the change. The aim of this study was to evaluate if the employee's previous learning experience and characteristics of the working environment were associated with positive attitudes towards organizational change. The 467 employees (73.5% males) working in a global oil company in the early phases of a downsizing process were asked to answer a questionnaire with demographic variables, perception of the working environment, and attitude to change (93% response rate). Corporate social responsibility (CSR), involvement and participation, team leadership and team effectiveness were important factors related to positive attitudes towards organizational change. Non-leaders and older employees were positive to change. We conclude that employees' perceptions of their psychosocial working environment, in particular the CSR, were highly related to their attitude to organizational change. 相似文献
136.
Problems with computer games without monetary reward: similarity to pathological gambling 总被引:4,自引:0,他引:4
An epidemiological study was performed on a representative sample of the Norwegian youth population (12 to 18 years old, N=3,237; response rate 45.2%). The percentage who were frequent players (weekly) of different computer games was 63.3%, and the percentage of infrequent users was 36.7%. A mean of 2.7% (4.2% of the boys, 1.1% of the girls) could be described as exhibiting "pathological playing" according to the criteria in the 1998 Diagnostic Questionnaire for Internet Addiction of Young, and an additional 9.82% (14.5% of the boys, 5.0% of the girls) were considered to be engaging in "at-risk playing." Of the weekly gamblers, 4.2% fulfilled 5 criteria for pathological playing, and an additional 15.5% 3 to 4 criteria, i.e., at-risk playing. This indicated that frequent gaming on computer games without money rewards may be related to problematic playing even though no monetary reward is involved. 相似文献
137.
Internet addiction: characteristics of a questionnaire and prevalence in Norwegian youth (12-18 years) 总被引:4,自引:0,他引:4
The use of the Internet has increased considerably during the last few years, and there are also some clinical observations that some people 'get hooked', and develop an Internet addiction. An epidemiological study was performed in a representative sample of the Norwegian youth population (N= 3,237; response rate 45.2%). The proportion not using Internet was only 4.9%, while 35.8% were non-frequent users, and 49.6% (1,591) were frequent (weekly) users. They used the Internet on the mean 4.3 hours a week. A mean of 1.98% (boys 2.42%, girls 1.51%) could be described as having an 'Internet addiction' according to the criteria in the Diagnostic Questionnaire of Young (1998), and an additional 8.68% (in sum 10.66) were considered to have an at-risk Internet use (boys 9.21%, girls 8.13%). If these proportions were calculated on individuals who used the Internet frequently, 4.02% fulfilled 5 criteria, and an additional 17.66% 3-4 criteria, giving quite high figures of problematic Internet use (in sum 21.68). The different diagnostic criteria gave a broad range of affirmative answers (from 0.4% to 27.9%). The results have important implications for further studies of prevalence, implementation of preventive measures, and the development of treatment approaches for Internet addiction. 相似文献
138.
Can we really reduce ethnic prejudice outside the lab? A meta‐analysis of direct and indirect contact interventions
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The present meta‐analysis tested the effectiveness of contact‐based interventions for the reduction of ethnic prejudice. Up to now, a meta‐analysis summarizing the results of real‐world interventions that rest on the intergroup contact theory has been missing. We included evaluations of programs realizing direct (i.e., face‐to‐face) and/or indirect (i.e., extended or virtual) contact in real‐world settings outside the lab. The interventions' effectiveness was tested shortly after their end (k = 123 comparisons, N = 11 371 participants) and with a delay of at least 1 month (k = 25, N = 1650). Our data show that contact interventions improve ethnic attitudes. Importantly, changes persist over time. Furthermore, not only direct but also indirect contact interventions are successful. In addition, contact programs are effective even in the context of a serious societal conflict (e.g., in the Middle East). Although changes are typically larger for ethnic majorities, there is an impact on minorities, too. Finally, contact interventions not only improve attitudes toward individuals involved in the program, their effects also generalize to outgroups as a whole. In sum, social psychology provides an intervention for prejudice reduction that can be successfully implemented in the practical field. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
139.
The irreversibility of sensitive period effects in language development: evidence from second language acquisition in international adoptees
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The question of a sensitive period in language acquisition has been subject to extensive research and debate for more than half a century. While it has been well established that the ability to learn new languages declines in early years, the extent to which this outcome depends on biological maturation in contrast to previously acquired knowledge remains disputed. In the present study, we addressed this question by examining phonetic discriminatory abilities in early second language (L2) speakers of Swedish, who had either maintained their first language (L1) (immigrants) or had lost it (international adoptees), using native speaker controls. Through this design, we sought to disentangle the effects of the maturational state of the learner on L2 development from the effects of L1 interference: if additional language development is indeed constrained by an interfering L1, then adoptees should outperform immigrant speakers. The results of an auditory lexical decision task, in which fine vowel distinctions in Swedish had been modified, showed, however, no difference between the L2 groups. Instead, both L2 groups scored significantly lower than the native speaker group. The three groups did not differ in their ability to discriminate non‐modified words. These findings demonstrate that L1 loss is not a crucial condition for successfully acquiring an L2, which in turn is taken as support for a maturational constraints view on L2 acquisition. A video abstract of this article can be viewed at: https://youtu.be/1J9X50aePeU 相似文献
140.
Árni Gunnar Ásgeirsson Árni Kristjánsson Claus Bundesen 《Attention, perception & psychophysics》2014,76(1):40-48
Attention shifts are facilitated if the items to be attended remain the same across trials. Some researchers argue that this priming effect is perceptual, whereas others propose that priming is postperceptual, involving facilitated response selection. The experimental findings have not been consistent regarding the roles of variables such as task difficulty, response repetition, expectancies, and decision-making. Position priming, when repetition of a target position facilitates responses on a subsequent trial, is another source of disagreement among researchers. Experimental results have likewise been inconsistent as to whether position priming is dependent on the repetition of target features or has an independent effect on attention shifts. We attempted to isolate the perceptual components of priming by presenting brief (10–180 ms) search arrays to eight healthy observers. The task was to identify a color-singleton letter among distractors. All stimulus presentation contingencies were randomized, and responses were unspeeded, to avoid effects of observer expectation and postperceptual effects. Repeating target color and/or position strongly improved performance. The effects of color and position repetition were independent of one another and were stable across participants. The results argue for a strong perceptual component in priming, which biases selection toward recent target features and positions, showing that perceptual mechanisms are sufficient to produce priming in visual search and that such effects can be elicited with limited sensory evidence. The results are the first to demonstrate independent priming of color and position in the identification of briefly presented, postmasked stimuli. 相似文献