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41.
Attention is central to perception, yet a clear understanding of how attention influences the latency of perception has proven surprisingly elusive. Recent research has indicated that spatially attended stimuli are perceived earlier than unattended stimuli across a range of sensory modalities-an effect termed prior entry. However, the method commonly used to measure this, the temporal order judgment (TOJ) task, has been criticized as susceptible to response bias, despite deliberate attempts to minimize such bias. A preferred alternative is the simultaneity judgment (SJ) task. We tested the prior-entry hypothesis for somatosensory stimuli using both a TOJ task (replicating an earlier experiment) and an SJ task. Prior-entry effects were found for both, though the effect was reduced in the SJ task. Additional experiments (TOJ and SJ) using visual cues established that the earlier perception of cued tactile targets does not result from intramodal sensory interactions between tactile cues and targets. 相似文献
42.
Job demands, job resources and individual innovation at work: going beyond Karasek's model? 总被引:1,自引:0,他引:1
The job demands-control model is one of the most recognized models in occupational stress research. It has, however, provided contradictory results, and the active learning hypothesis derived from this model has been under-researched in comparison with research on the stress hypothesis. The main aim of this study is to test the Job Demands Resources Model in the prediction of individual innovation at work as an active coping strategy. Results with hierarchical multiple regression analyses provide empirical support for this model. We found a positive relationship between job demands and individual innovation in situations characterized by high job resources. Finally, we discuss the limitations and practical implications of this study. 相似文献
43.
Maintained attitudinal changes in nursing personnel after a brief training on suicide prevention 总被引:1,自引:0,他引:1
Botega NJ Silva SV Reginato DG Rapeli CB Cais CF Mauro ML Stefanello S Cecconi JP 《Suicide & life-threatening behavior》2007,37(2):145-153
Nursing personnel (N = 317) working at a general hospital attended a 6-hour training program on suicide prevention. They answered anonymously pre- and post-training the Suicide Behavior Attitude Questionnaire (SBAQ), which comprises 21 visual analogue scale items divided in three factorial subscales. The results indicated there were positive changes in the attitudes and these gains were significantly maintained at the 6-month follow-up evaluation. Improvement was in the Feelings and Professional Capacity subscales (ANOVA; p = 0.0001 and 0.01, respectively). There was no change on the Right to Suicide subscale. Because attitudes influence the effectiveness of health care personnel interventions, our findings may have important implications for the development of suicide prevention programs. 相似文献
44.
The perceived timing of sensory events does not necessarily match the actual timing. In the present study, we investigated the effect of location of attention on the perceived timing of somatosensory stimuli. Participants judged the temporal order of two taps, delivered one to each hand, with taps presented at different elevations (upper and lower) on the opposing hands. The task was to discriminate the elevation of the tap presented first (or second). This vertical discrimination task was orthogonal to the horizontal attentional cuing manipulation, removing the response bias confound that has undermined earlier studies investigating the impact of attention on the perceived timing of sensory stimuli. We manipulated spatial attention either (1) exogenously (Experiment 1) in 13 participants, using brief taps to either the left or right hand, or (2) endogenously (Experiment 2) in 22 participants, using centrally presented symbolic cues. The results supported the hypothesis that attended stimuli are perceived more rapidly than unattended stimuli. This effect was larger when attention was exogenously manipulated. Previous research has demonstrated a similar effect for visual stimuli. The present study, which extends this result to somatosensory perception, indicates that the phenomenon may represent a more global feature of the perceptual system, which is possibly mediated by a common modality-independent mechanism. 相似文献
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Winston Sieck J.Frank Yates 《Organizational behavior and human decision processes》1997,70(3):207-219
Many of us believe that, after writing about a subject, we understand it more deeply. Studies in education indicate that writing does indeed enhance comprehension. Three experiments examined whether similar “exposition effects” exist for decision making. In these experiments, subjects were confronted with standard framing problems. Positive exposition effects would require that the influence of alternative frames on subjects' choices be diminished by exposition demands. Control subjects made choices under customary, non-exposition instructions. Others chose after writing rationales for their selections (exposition), after explicitly planning to write such rationales, or merely in anticipation of writing the rationales. Exposition reduced framing effects in each of the experiments. The magnitudes of the effects were greatest for subjects who wrote before choosing. Also, exposition markedly increased subjects' confidence that their choices were appropriate. Theoretical and practical implications are discussed. 相似文献
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Procedures for assessing children's sex-typed play were developed which (a) examined children's continuous play in four sessions totaling 20 minutes rather than measuring only initial choice of a sex-typed toy, and (b) did not impose the stimulus-specific condition of requiring an adult experimenter to be present to administer the task. Play with masculine and feminine toys was observed for 120 normal children (60 boys, 60 girls) aged 3 yr.–8 yr., and 15 similarly aged boys diagnosed as having childhood gender disturbance. Significant differences were found in the sex-typed play of the two normal groups, but no age differences were observed. The amount of feminine play by the feminoid boys was found to be significantly greater than that of normal boys, but not significantly different from the predominantly feminine play patterns of the normal girls. The usefulness of such a measure for the clinical assessment of deviant sexrole development in young children is discussed.This study was supported by United States Public Health Service Research Grant #MH 21803-01A1, 02, 03 from the National Institute of Mental Health. The University Elementary School at UCLA is gratefully acknowledged for providing a normal subject population and laboratory facilities. The authors express their appreciation to Stanley Conrad, Roni Greenberg, Alfred Lauck, Benson Low, and Martin Magy for their assistance in data collection. 相似文献
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Subjects whose preexperimental attitudes toward either capital punishment or censorship were high or low in affective-cognitive consistency were identified. These four groups thought about their attitudes by writing two essays, one on the topic for which consistency had been assessed (relevant essay) and one on the unassessed topic (distractor essay). In accord with the hypothesis that thought-induced attitude polarization requires the presence of a well-developed knowledge structure, high-consistency subjects evidenced greater polarization than low-consistency subjects only on the relevant topic after writing the relevant essay. Content analyses of subjects' relevant essays yielded additional data confirming Tesser's ideas regarding mediation: High (vs. low) consistency subjects expressed a greater proportion of cognitions that were evaluatively consistent with their prior affect toward the attitude object and a smaller proportion of evaluatively inconsistent and neutral cognitions. Moreover, although high-and low-consistency subjects did not differ in the amount of attitudinally relevant information they possessed or their awareness of inconsistent cognitions, their method of dealing with discrepant information diverged: High-consistency subjects evidenced a greater tendency to assimilate discrepant information by generating refutational thoughts that discredited or minimized the importance of inconsistent information. 相似文献