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281.
282.
An erroneous response is not always accompanied by the conscious perception of the error being made. We examined whether increased response interference on a manual task improved the conscious perception of erroneous eye movements on a concurrent oculomotor task. In the first experiment, we examined whether a correlate of response interference, increased task difficulty alone, could improve perception of errors. We found no effect of task difficulty on self-monitoring. Results from a second experiment suggested that participants’ ability to monitor their eye movements improved with increased response interference, but post hoc analyses indicated that this was due to a decrease in corrective behaviors. Experiment 3 required participants to report directly on whether they had made an eye movement error, and we found that response interference perturbed, rather than improved, participants’ ability to report on their errors. Together, these findings contribute to models of error monitoring, revealing little support for the view that general increases in response interference or task difficulty are signals that contribute to the conscious detection of errors. 相似文献
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284.
The same-different experiment is popular for assessing perceptual performance, including the performance of people with neuropsychological deficits. Although the measurement of accuracy with this experiment is now well understood, the measurement of response bias remains problematic. Reformulating the decision space for the experiment can yield new bias indices that are analogous to, but numerically different from, those of the more familiar yes-no experiment. Isobias curves that show how hit rate covaries with false alarm rate for constant bias but varying accuracy are presented for eight indices, and best-fitting parameters of the isobias functions are determined for a set of experimental data. The theoretical status of the bias indices and their relation to other formulations are reviewed. 相似文献
285.
In five studies, we measured the extent to which subjects weight moral product attributes in different response modes. We found that nonprice judgments such as likelihood of purchase ratings were more reflective of expressed moral attitudes than were pricing responses, and that holistic price evaluations were especially unlikely to reflect moral considerations. Post-task ratings confirmed the preference results, as did an experiment controlling for the influence of task goals. Our results have implications for compatibility theories of preference elicitation, the predictability of respondent ratings of attribute unacceptability, and the measurement of utilities for morally charged attributes. 相似文献
286.
In light of previous research, the current study tested the hypothesis that dissociative identity disorder (DID) would be characterised by effective cognitive inhibitory functioning when tested in a neutral context, but weakened inhibition when tested in an emotionally negative context. Using a negative priming task (i.e. the flanker task) to assess inhibitory ability 11 DID, 11 depressed, and 11 general population participants were tested in the two differing experimental contexts. The contexts were manipulated by instructions and word stimuli, and following the completion of this task participants completed the Dissociative Experiences Scale and the Schizotypal Personality Scale. DID participants displayed a greater degree of self-reported anxiety in the negative context and as expected displayed a reduction in inhibition in this context but not in the neutral context. The degree of negative priming for the depressed and general population samples remained stable across contexts as did their anxiety levels. The DID sample displayed slower response times to negative compared to neutral words but this attentional bias was not evident for the two comparison groups. The relationship between increased arousal, inhibitory functioning, dissociation and information processing in DID is discussed. 相似文献
287.
The original short form of Sarason's Social Support Questionnaire measures two dimensions of social support, availability and satisfaction. The factorial structure of the social support was assessed in a French sample along with the association between the dimensions of social support and personality traits such as Extraversion, Neuroticism, and Depression. A 6-item French version was administered to 648 subjects: 348 university freshmen (228 females, 120 males) and 304 unemployed men. A principal component analysis followed by oblique rotations was undertaken on each sample. This yielded two factors, Availability and Satisfaction. These results sustained the stability of the factorial structure from one culture to another. Validity and reliability were satisfactory. Moreover, these two dimensions were correlated with two personality scales (high extraversion, low depression). Such results agree with previous results establishing relations between social support and salutogenic dimensions of personality. 相似文献
288.
This case control study examined the relationship between psychopathological profiles and self-reported suicide attempts among rural adolescents of China. Cases consisted of 142 adolescents who reported a suicide attempt in the past 6 months in a questionnaire survey (n=1365). An equal number of adolescents without reporting a suicide attempt, matched on age, gender, and school class, were selected from the same survey sample as controls. The Youth Self Report (YSR) was used to assess psychopathological profiles for suicide attempters and matched controls. Results indicated that 73% of suicide attempters had at least one behavioral/emotional syndrome, significantly higher than in controls (30%). Logistic regression analyses showed that anxiety/depression (OR = 3.68) and aggression (OR = 5.02) were each significantly associated with increased risk of suicide attempts after controlling for other behavioral problems. These findings demonstrated the independent contribution of anxiety/depression and aggression to suicide attempts in Chinese adolescents. 相似文献
289.
Some cognitive processes are suppressed during saccadic eye movements, whereas others are not. In two experiments, we investigated the locus of this interference effect. In one experiment, subjects decided whether pictured items were objects or nonobjects while making saccades of different lengths. Saccade distance had no effect on response time, indicating that saccades do not interfere with object recognition. However, in a second experiment, in which subjects decided whether pictured items faced to the left or to the right, response time increased with saccade distance, indicating that processing was suppressed during the saccade. These results (along with others) suggest that dorsal-stream (where) processes are suppressed during saccades, whereas ventral-stream (what) processes are not. Because the dorsal stream is instrumental in generating saccades, we propose that cognitive saccadic suppression results from dual-task interference within this visual subsystem. 相似文献
290.
Brockmole JR Wang RF Irwin DE 《Journal of experimental psychology. Human perception and performance》2002,28(2):315-334
Using a temporal integration task, subjects in 5 experiments were expected to combine information from temporally separated visual presentations. Evidence from these experiments indicated that perceptual information can be integrated with previously generated and currently maintained visual images to form a representation that contains information from each source. Properties and limitations of this integration process were also explored, including the time required to generated the image, the speed at which percepts were integrated with images, and the capacity of the representation. Implications for theories of visual processing and memory are discussed. 相似文献