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31.
Russell D. Ravert Seth J. Schwartz Byron L. Zamboanga Su Yeong Kim Robert S. Weisskirch Melina Bersamin 《Personality and individual differences》2009,47(7):763-768
This study examines the roles of sensation seeking and invulnerability as predictors of health compromising behaviors in a multiethnic sample of 1690 emerging adult college students (mean age = 19.8, range 18–25 years) from nine US colleges and universities. Participants completed the Arnett Sensation Seeking Inventory and the Adolescent Invulnerability Scale; and reported how often they had participated in a set of health compromising risk behaviors (i.e., substance use, impaired driving, and sexual behaviors) in the 30 days prior to assessment. Sensation seeking and danger invulnerability scores were moderately correlated (r = .30). Findings from a series of multivariate Poisson regression analyses suggest that when considered simultaneously as predictors, sensation seeking appears to be a general risk factor associated with engagement in a variety of risk behaviors, whereas danger invulnerability is primarily a factor in those risk behaviors that are less common among peers (e.g., hard drug use, casual sex, and driving while intoxicated). 相似文献
32.
Nelson JB Callejas-Aguilera JE 《Journal of experimental psychology. Animal behavior processes》2007,33(3):314-326
In 2 experiments, participants completed a computer task in which they judged the probability of outcomes occurring (e.g., flowers growing, a bug infestation) given cues (e.g., treatment of soil with a fictitious garden product). In each 2-phase experiment, cue X was associated with 1 outcome in Phase 1 and with a 2nd outcome in Phase 2. When the outcome in Phase 1 (e.g., X led to a bug infestation) was replaced in Phase 2 (e.g., X led to flowers growing), contextual control was observed (Experiments 1 and 2). Information learned in each phase was less likely to be retrieved when the cue was tested in a context different from the 1 where training occurred. When the 2nd outcome did not conflict with information acquired in the 1st phase (e.g., X led to flowers and bugs), no contextual control was observed (Experiment 2). Acquiring a 2nd association to X resulted in contextual control only when it conflicted with an association learned earlier. The authors discuss the role of interference produced when conflicting information is acquired in establishing contextual control. 相似文献
33.
The preparation and credentialing of marital and family therapists in the United States and Canada continues to be significantly affected by the role of accreditation in MFT graduate education. This report on a study of Commission on Accreditation for Marriage and Family Therapy Education accredited degree programs and non-accredited programs shows some significant differences between the two paths to preparation and credentialing. Accredited programs tend to have more faculty, lower faculty-student ratios, more Approved Supervisors, more financial aid, more programs requiring practica and internships, and more emphasis on professional identification with marital and family therapy. Nonaccredited programs provide more emphasis on psychopathology, psychodiagnostic testing, and cognitive behavioral therapy. 相似文献
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35.
William A. Yost David C. Tanis Donald W. Nielsen Byron Bergert 《Attention, perception & psychophysics》1975,18(6):433-440
In a two-interval lateralization procedure, observers judged whether a stimulus presented with an interaural intensive difference was right or left in lateral space of the same stimulus presented with only an interaural temporal difference. The stimuli were pure tones of 500 and 1,000 Hz and 1,000-Hz low-pass noise. All stimuli were presented at both 65 and 55 dB SPL. For each of several values of interaural time (ranging from 0 to 1,000 microsec across all stimuli), a function was determined which related proportion of “right” relative position judgments to the value of the interaural intensive difference. The intercepts of these functions indicated that a progressively smaller amount of interaural intensive difference was required for the two stimuli to occupy a similar lateral location as the interaural temporal difference was increased. The slopes of the function suggested that the images associated with larger values of the interaural temporal differences are less distinct and blend together more than the images associated with small values of the temporal difference. Thus, the procedure provided a means for comparing the lateral location of images produced by interaural differences of time and intensity. 相似文献
36.
Relative aversiveness of subcutaneous shock and footshock was assessed by means of a spatial preference technique. Subcutaneous shock was less aversive than footshock by a factor of 10, except at near lethal shock intensities. where receptor-cell hyperpola rization. electrocauterization, and/or muscular tetanization may have occurred 相似文献
37.
Patterson R Geri GA Dyre BP Pierce BJ Akhtar SC Covas CM Morgan W 《Perception & psychophysics》2006,68(4):593-600
In two experiments, we manipulated the properties of 3-D objects and terrain texture in order to investigate their effects on active heading control during simulated flight. Simulated crosswinds were used to introduce a rotational component into the retinal flow field that presumably provided the visual cues used for heading control An active control task was used so that the results could be generalized to real-world applications such as flight simulation. In Experiment 1, we examined the effects of three types of terrain, each of which was presented with and without 3-D objects (trees), and found that the presence of 3-D objects was more important than terrain texture for precise heading control In Experiment 2, we investigated the effects of varying the height and density of 3-D objects and found that increasing 3-D object density improved heading control, but that 3-D object height had only a small effect. On the basis of these results, we conclude that the vertical contours improved active heading control by enhancing the motion parallax information contained in the retinal flow. 相似文献
38.
Five hundred children from ages 6 to 12 who had been referred for neuropsychological assessment were clustered into six subtypes using a kmeans technique applied to 10 PIC scales. Five of the six subtypes were virtually identical to subtypes identified in previous research (viz., normal, somatic concern, mild anxiety, externalized psychopathology, and internalized psychopathology). A sixth subtype (conduct disorder) was also found. Wide Range Achievement Test (WRAT) Reading and Spelling scores discriminated between normal, somatic concern, and conduct disorder subtypes on the one hand vs. the more disturbed externalized and internalized psychopathology subtypes on the other;the latter groups scored higher on these measures. The internalized psychopathology subtype also showed large discrepancies between reading vs. arithmetic and spelling vs. arithmetic. The results support the view that psychosocial functioning is related to assets and deficits in cognitive/academic functioning in children, and that particular patterns of such assets and deficits are related to particular forms of psychopathology. 相似文献
39.
Byron Williston 《The Journal of value inquiry》2005,39(3-4):309-324
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