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241.
Anthony Gale Mary Haslum Valerie Penfold 《Quarterly journal of experimental psychology (2006)》1971,23(3):245-254
Occipital EEG was monitored during a slow presentation rate vigilance task. EEG samples were taken for each of 400 task events. The EEG is correlated with increases and decreases in “expectancy” built into the task. Post-trial subjective estimates of alertness parallel the EEG changes. Reaction time to “wanted signals” does not correlate with measures of pre-signal EEG. 相似文献
242.
This paper examines the suggestion that sexism is a central feature of authoritarianism among young people. One hundred seventeen Australian adolescent schoolchildren completed questionnaires containing Phillips' (1979a, Child Study Journal, 9, 21–35) measure of classical authoritarianism for children and balanced measures of two other aspects of authoritarianism, namely, directiveness, modified from Ray (1976, Human Relations, 29, 307–325) and attitude to authority, modified from Rigby and Rump (1981, Journal of Psychology, 109, 109–118). Factor analyses of the results for classical authoritarianism replicated Phillips' earlier finding with younger schoolchildren that eight items identified as reflecting a sexist attitude loaded substantially on a first varimax rotated factor. These eight items constituted a reliable sexism scale (α = .80), which correlated significantly with the remainder of the classical authoritarianism scale, after controlling for the contribution of age (partial r = .30). However, the partial correlations with balanced measures of directiveness and attitude to authority were not significant. These results suggest that sexism may be one aspect of authoritarianism, rather than a central feature. 相似文献
243.
Ken Fogelman 《British Journal of Guidance & Counselling》1979,7(1):42-56
Data obtained at the 16-year stage of the National Child Development Study provide information on the job expectations, aspirations and educational plans of some 12,000 young people in their final year of compulsory schooling. The interrelationships among these measures, and the associations with, for example, sex, social class and ability, are examined. 相似文献
244.
Tadashi Kikuchi Yukio Yamashita Ken Sagawa Tenji Wake 《Attention, perception & psychophysics》1979,26(4):295-301
A confusion matrix of the whole block capital letters of the alphabet was obtained so as to examine the nature of tactile letter recognition, using a 17 by 17 matrix of tactile stimulators placed against blind subjects’ backs. A hierarchical cluster analysis and a nonmetric multidimensional scaling technique were applied to the matrix. The results of the two analyses were consistent with each other and indicated that at least three independent basic letter features—enclosing shapes, vertical parallel lines, andangle of lines—play important parts in tactile letter recognition. Most confusion may be attributable to displacement of the apparent loci, omission or fusion of loci of stimulation, and failure to detect gaps in the tactile letters. 相似文献
245.
In a replication of Cooper and Shepard's (1975) study of hand recognition, it was found that individual differences in imagery ability had a significant influence on reaction times to such stimuli (Experiment 1). However, it was found (Experiment 2) that individual difference effects were only seen if prior instructions to use imagery were given to the subjects. 相似文献
246.
Second-, fourth-, and sixth-grade children and adults performed a four-choice reaction time task with partially predictable sequences and 250-, 500-, and 750-msec response-to-stimulus intervals. The relative advantage for in-sequence as opposed to out-of-sequence events was independent of the response-to-stimulus interval for all ages. Children, but not adults, were slower for nonrepeated than repeated out-of sequence events and this advantage for repeated signals decreased as age increased. A second experiment extended the range of intervals tested to zero. Second graders and adults responded to four-choice partially predictable sequences with 0-, 250-, and 500-msec response-to-stimulus intervals. As in the first experiment, the difference between in-sequence and out-of-sequence events did not vary with the response-to-stimulus interval. The results suggest that both children and adults are able to process advance sequence probability information about a subsequent event in parallel with an ongoing response. 相似文献
247.
Repetition priming of object identification refers to the phenomenon whereby experience with an object induces systematic changes in subsequent processing of that same object. This data-driven form of priming is distinct from conceptually-driven priming. To date, considerable controversy exists about whether data-driven priming reflects facilitation in perceptual processing or mediation by preexisting object representations. The present study concerned priming of recognizing familiar and unfamiliar faces and how this priming is influenced by face inversion, which interferes with perceptual face processing. Perceptual and representation-based loci conjointly contributed to priming; the perceptual locus was operative similarly for familiar and unfamiliar faces, whereas the representation-based locus was only invoked for familiar faces and resulted in a response-time reduction triple the magnitude of that from the perceptual locus. The results constrain theoretical accounts of data-driven priming by indicating that improved identification can result from the combination of perceptual and representation-based facilitation. 相似文献
248.
Subthreshold summation between physical target lines and illusory contours induced by edges such as those produced in the Kanizsa illusion has been reported in previous studies. Here, we investigated the ability of line-induced illusory contours, using Ehrenstein figures, to produce similar subthreshold summation. In the first experiment, three stimulus conditions were presented. The target line was superimposed on the illusory contour of a four-arm Ehrenstein figure, or the target was presented between two dots (which replaced the arms of the Ehrenstein figure), or the target was presented on an otherwise blank screen (control). Detection of the target line was significantly worse when presented on the illusory contour (on the Ehrenstein figure) than when presented between two dots. This result was consistent for both curved and straight target lines, as well as for a 100 ms presentation duration and unlimited presentation duration. Performance was worst in the control condition. The results for the three stimulus conditions were replicated in a second experiment in which an eight-arm Ehrenstein figure was used to produce a stronger and less ambiguous illusory contour. In the third experiment, the target was either superimposed on the illusory contour, or was located across the central gap (illusory surface) of the Ehrenstein figure, collinear with two arms of the figure. As in the first two experiments, the target was either presented on the Ehrenstein figure, or between dots, or on a blank screen. Detection was better in the dot condition than in the Ehrenstein condition, regardless of whether the target was presented on the illusory contour or collinear with the arms of the Ehrenstein figure. These three experiments demonstrate the ability of reduced spatial uncertainty to facilitate the detection of a target line, but do not provide any evidence for subthreshold summation between a physical target line and the illusory contours produced by an Ehrenstein figure. The incongruence of these results with previous findings on Kanizsa figures is discussed. 相似文献
249.
Tomotake M Kaneda Y Iga J Kinouchi S Tayoshi S Motoki I Sumitani S Yamauchi K Taniguchi T Ishimoto Y Ueno S Ohmori T 《Psychological reports》2006,99(2):477-487
This study investigated the relationship between subjective and objective quality of life and assessed predictors in people with schizophrenia. The study population consisted of 99 stabilized outpatients with schizophrenia (DSM-IV) who had been regularly receiving outpatient treatment at the Department of Psychiatry, The Tokushima University Hospital. Subjective and objective quality of life were estimated using the Schizophrenia Quality of Life Scale and the Quality of Life Scale, respectively. Psychiatric symptoms were also measured with the Brief Psychiatric Rating Scale and the Calgary Depression Scale for Schizophrenia. Scores on the Schizophrenia Quality of Life Scale Motivation and Energy scales significantly correlated with the Quality of Life Scale total scores -.40 (p <.001), and with the scores on Interpersonal Relations subscale -.42 (p <.001), Instrumental Role subscale -.28 (p = .005), Intrapsychic Foundations subscale -.39 (p<.001), and Common Objects and Activities subscale -.25 (p =.014). The Schizophrenia Quality of Life Scale Psychosocial scale significantly correlated with only the Quality of Life Scale total score -.20 (p =.05), and there was no significant correlation between the scores on the Schizophrenia Quality of Life Scale Symptoms and Side-effects scales and the Quality of Life Scale. Stepwise regression analyses showed that the Calgary Depression Scale for Schizophrenia score was the most important predictor of each scale of the Schizophrenia Quality of Life Scale, and the Brief Psychiatric Rating Scale Negative Symptoms score was the most important predictor of the Quality of Life Scale total score and each subscale. These results suggest that subjective and objective quality of life have different predictors and should be considered as separate and complementary outcome variables. 相似文献
250.
At the time of this writing, a widely publicized, waived-consent trial is underway. Sponsored by Northfield Laboratories, Inc. (Evanston, IL) the trial is intended to evaluate the emergency use of PolyHeme, an oxygen-carrying resuscitative fluid that might prevent deaths from uncontrolled bleeding. The protocol allows patients in hemorrhagic shock to be randomized between PolyHeme and saline in the field and, still without consent, randomized between PolyHeme and blood after arrival at an emergency department. The Federal regulations that govern the waiver of consent restrict its applicability to circumstances where proven, satisfactory treatments are unavailable. Blood-the standard treatment for hemorrhagic shock-is not available in ambulances but is available in hospitals. The authors argue that the in-hospital stage of the study fails to meet ethical and regulatory standards. 相似文献