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Semantic context and word frequency factors exert a strong influence on the time that it takes subjects to recognize words. Some of the explanations that have been offered for the effects of the two factors suggest that context and frequency should interact, and other explanations imply additivity. In a recent study, Schuberth and Eimas reported that context and frequency effects added to determine their subjects' reaction times in a lexical decision (word vs. nonword) task. The present experiment reexamines this question with improved procedures. The data show that context and frequency do interact, with a semantic context facilitating the processing of low-frequency words more than high-frequency words. 相似文献
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244.
- Recently, a number of studies have investigated consumer decision‐making styles (CDMS) and their importance to consumer behaviour research. However, research designs suggested to date are mainly replications of a study by Sproles and Kendall ( 1986 ) proposing eight mental characteristics, the so‐called Consumer Styles Inventory (CSI). The CSI has been applied across cultures, but without critically examining its validity and reliability. A major concern is the postulated product independence of CSI. The aim of this study is to further develop this approach, to apply it to different product categories and to investigate the relationship between product involvement and CDMS. In doing so, we conducted a survey in Great Britain and Germany, and analysed the data using exploratory and confirmatory factor analysis. Not only did we demonstrate that there is a relationship between products and CDMS, but also that CDMS are governed by consumers' perceived product involvement. Important implications for marketing practice can be derived.
245.
Lange KW Mecklinger L Walitza S Becker G Gerlach M Naumann M Tucha O 《Human movement science》2006,25(4-5):492-509
Three experiments were performed in an attempt to achieve a better understanding of the effect of dopamine on handwriting. In the first experiment, kinematic aspects of handwriting movements were compared between healthy participants and patients with Parkinson's disease (PD) on their usual dopaminergic treatment and following withdrawal of dopaminergic medication. In the second experiment, the writing performance of healthy participants with a hyperechogenicity of the substantia nigra as detected by transcranial sonography (TCS) was compared with the performance of healthy participants with low echogenicity of the substantia nigra. The third experiment examined the effect of central dopamine reduction on kinematic aspects of handwriting movements in healthy adults using acute phenylalanine and tyrosine depletion (APTD). A digitising tablet was used for the assessment of handwriting movements. Participants were asked to perform a simple writing task. Movement time, distance, velocity, acceleration and measures of fluency of handwriting movements were measured. The kinematic analysis of handwriting movements revealed that alterations of central dopaminergic neurotransmission adversely affect movement execution during handwriting. In comparison to the automatic processing of handwriting movements displayed by control participants, participants with an altered dopaminergic neurotransmission shifted from an automatic to a controlled processing of movement execution. Central dopamine appears to be of particular importance with regard to the automatic execution of well-learned movements. 相似文献
246.
Learning from successful and failed experience: the moderating role of kind of after-event review 总被引:1,自引:0,他引:1
The claim that appropriate "after-event review (AER)" may increase the relative value of drawing lessons from successes, as compared with failures, was examined in the present study. The study was a laboratory experiment in which the effect of type of AER (failure-focused, success-focused, failure- and success-focused, and no AER review) on performance improvement and causal attributions was tested under conditions of earlier success and earlier failure. In general, 2 results were demonstrated: (a) Drawing lessons from successful experience is feasible, and its effectiveness is contingent upon the type of AER. More specifically, after successful events, the most effective review is that of wrong actions, whereas after failed events, any kind of event review (correct or wrong actions) is effective. (b) AERs elicit more internal (as opposed to external) and specific (as opposed to general) attributions. These 2 classifications moderate the effect of AERs on task performance. 相似文献
247.
Speeded detection and increased distraction in fear of spiders: evidence from eye movements 总被引:6,自引:0,他引:6
Anxiety patients exhibit attentional biases toward threat, which have often been demonstrated as increased distractibility by threatening stimuli. In contrast, speeded detection of threat has rarely been shown. Therefore, the authors studied both phenomena in 3 versions of a visual search task while eye movements were recorded continuously. Spider-fearful individuals and nonanxious control participants participated in a target search task, an odd-one-out search task, and a category search task. Evidence for disorder-specific increased distraction by threat was found in all tasks, whereas speeded threat detection did not occur in the target search task. The implications of these findings for cognitive theories of anxiety are discussed, particularly in relation to the concept of disengagement from threat. 相似文献
248.
A token reinforcement program in a public school: a replication and systematic analysis 总被引:2,自引:0,他引:2
A base rate of disruptive behavior was obtained for seven children in a second-grade class of 21 children. Rules, Educational Structure, and Praising Appropriate Behavior while Ignoring Disruptive Behavior were introduced successively; none of these procedures consistently reduced disruptive behavior. However, a combination of Rules, Educational Structure, and Praise and Ignoring nearly eliminated disruptive behavior of one child. When the Token Reinforcement Program was introduced, the frequency of disruptive behavior declined in five of the six remaining children. Withdrawal of the Token Reinforcement Program increased disruptive behavior in these five children, and reinstatement of the Token Reinforcement Program reduced disruptive behavior in four of these five. Follow-up data indicated that the teacher was able to transfer control from the token and back-up reinforcers to the reinforcers existing within the educational setting, such as stars and occasional pieces of candy. Improvements in academic achievement during the year may have been related to the Token Program, and attendance records appeared to be enhanced during the Token phases. The Token Program was utilized only in the afternoon, and the data did not indicate any generalization of appropriate behavior from the afternoon to the morning. 相似文献
249.
Charles W. Eriksen Barbara B. Becker James E. Hoffman 《Attention, perception & psychophysics》1970,8(4):245-250
Due to the theoretical interest in whether U-shaped visual masking functions are obtained when discrimination responses are required of the Ss, an attempt was made to replicate the Weisstein and Haber (1965) experiment. The attempt was unsuccessful. The results indicated that masking was uniform over a temporal range of approximately 50 msec. The possibility of individual differences in the shape of masking functions was investigated in two subsequent experiments with negative results. Overall, the results of the three experiments supported a temporal integration account of masking when assessed by detection or discrimination criteria. Some possible reasons for discrepancies with the Weisstein and Haber (1965) experiment were considered. 相似文献
250.