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41.
Roberts S 《The Behavioral and brain sciences》2004,27(2):227-62; discussion 262-87
Little is known about how to generate plausible new scientific ideas. So it is noteworthy that 12 years of self-experimentation led to the discovery of several surprising cause-effect relationships and suggested a new theory of weight control, an unusually high rate of new ideas. The cause-effect relationships were: (1) Seeing faces in the morning on television decreased mood in the evening (> 10 hrs later) and improved mood the next day (> 24 hrs later), yet had no detectable effect before that (0-10 hrs later). The effect was strongest if the faces were life-sized and at a conversational distance. Travel across time zones reduced the effect for a few weeks. (2) Standing 8 hours per day reduced early awakening and made sleep more restorative, even though more standing was associated with less sleep. (3) Morning light (1 hr/day) reduced early awakening and made sleep more restorative. (4) Breakfast increased early awakening. (5) Standing and morning light together eliminated colds (upper respiratory tract infections) for more than 5 years. (6) Drinking lots of water, eating low-glycemic-index foods, and eating sushi each caused a modest weight loss. (7) Drinking unflavored fructose water caused a large weight loss that has lasted more than 1 year. While losing weight, hunger was much less than usual. Unflavored sucrose water had a similar effect. The new theory of weight control, which helped discover this effect, assumes that flavors associated with calories raise the body-fat set point: The stronger the association, the greater the increase. Between meals the set point declines. Self-experimentation lasting months or years seems to be a good way to generate plausible new ideas. 相似文献
42.
Low-frequency irregular words are named more slowly and are more error prone than low-frequency regular words (the regularity
effect). Rastle and Coltheart (1999) reported that this irregularity cost is modulated by the serial position of the irregular
grapheme-phoneme correspondence, such that words with early irregularities exhibit a larger cost than words with late ones.
They argued that these data implicate rule-based serial processing, and they also reported a successful simulation with a
model that has a rule-based serial component—the DRC model of reading aloud (Coltheart, Rastle, Perry, Langdon, & Ziegler,
2001). However, Zorzi (2000) also simulated these data with a model that operates solely in parallel. Furthermore, Kwantes
and Mewhort (1999) simulated these data with a serial processing model that has no rules for converting orthography to phonology.
The human data reported by Rastle and Coltheart therefore neither require a serial processing account, nor successfully discriminate
among a number of computational models of reading aloud. New data are presented wherein an interaction between the effects
of regularity and serial position of irregularity is again reported for human readers. The DRC model simulated this interaction;
no other implemented computational model does so. The present results are thus consistent with rule-based serial processing
in reading aloud. 相似文献
43.
Folkman and Lazarus's theory of stress and coping was used to develop a measure assessing the perceived stress within a bicultural context. Middle school students of Mexican descent (N = 881) reported their perceived stress from intergenerational acculturation gaps, within-group discrimination, out-group discrimination, and monolingual stress. Although immigrant youths reported more total number of stressors, U.S.-born youths reported more stress from needing better Spanish and impact of parents' culture. Immigrant youths reported more stress from needing better English in school. Higher stress was associated with more depressive symptoms for both U.S.-born and immigrant youths. Although this study has identified some elements of stress, it has not identified positive coping mechanisms of the bicultural context for Latino youths. 相似文献
44.
There is growing dissatisfaction with a dichotomized "anger-in" versus "anger-out" view of anger coping. Three studies using student and community adultsamples revealed a broader understanding of the nature of anger coping styles and led to the development of the new Behavioral Anger Response Questionnaire (BARQ). The BARQ is empirically derived and factorially validated and has good psychometrics. Results suggest that dichotomizing anger responses as "in" versus "out" is too coarse and that a 6-factor model may be more appropriate. The 6 factors identified here are Direct Anger-Out, Assertion, Support-Seeking, Diffusion, Avoidance, and Rumination. Women reported use of a wider range of anger coping styles, especially more social support-seeking and more use of anger diffusion strategies than men. 相似文献
45.
A longitudinal study of personality change in young adulthood 总被引:1,自引:0,他引:1
The present research examined personality continuity and change in a sample of young men and women assessed at the beginning and end of college. Two-hundred seventy students completed measures of the Big Five personality traits when they first entered college and then 4 years later. Analyses indicate small- to medium-sized normative (i.e., mean-level) changes, large rank-order stability correlations, high levels of stability in personality structure, and moderate levels of ipsative (i.e. profile) stability. Overall, the findings are consistent with the perspective that personality traits exhibit considerable continuity over time, yet can change in systematic ways. 相似文献
46.
47.
Although there has been a proliferation of models of supervision in the marriage and family therapy literature recently, most tend to focus on methods rather than on the process of supervision. The model presented here is grounded in developmental concepts and focuses on student learning through a dialectical process of cognitive and emotional growth and incorporates three stages: 1) developing relationships; 2) breaking impasses, and 3) orchestrating changes. Students discover that supervision becomes isomorphic with relationship issues that arise in their therapy sessions. Dialectical in nature in that each stage is characterized by the resolution of contradictory emotions, the supervision process helps supervisees experience emotional shifts in their interactions with others, referred to as emotional restructuring. 相似文献
48.
Evaluating the Interaction Between Self-Leadership and Work Structure in Predicting Job Satisfaction
Recent research in organizational psychology has recognized the value of exploring the person-situation interactional perspective as a determinant of work outcomes. The present field study investigated the interaction between self-leadership and work structure (supervisory structure and job autonomy) and their relation to job satisfaction. Seventy-six employees provided measures of self-leadership, employment characteristics, and job satisfaction. Performance data for participants was also collected from the organization. Satisfaction was higher for employees with high (low) self-leadership who worked in low (high) structure environments. These results suggest that affective response to the job may be influenced by specific combinations of person and situation variables. Implications of the current results with regard to person-environment fit are discussed. 相似文献
49.
K A Paller A R Mayes K M Thompson A W Young J Roberts P R Meudell 《Brain and cognition》1992,18(1):46-59
Priming was studied in a task that required a speeded response to photographs of faces. On each trial, subjects viewed two faces and decided if the same person was shown twice or if two different people were shown. Both familiar and unfamiliar (i.e., well-known and unknown) faces were used, and some face pairs were repeated with a mean delay of about 10 min. Repetition was associated with faster reaction times in young subjects (Experiment 1) as well as in amnesic patients and age-matched control subjects (Experiment 2). The patients' reaction times were slower overall, although the magnitude of the priming effect did not differ from that in the control subjects. This preservation of a normal reaction-time facilitation in subjects with impaired recognition memory for faces occurred for both familiar and unfamiliar faces, suggesting that amnesia does not necessarily interfere with the acquisition of new information as indexed by this priming effect. 相似文献
50.
Dawson MR Kelly DM Spetch ML Dupuis B 《Journal of experimental psychology. Animal behavior processes》2008,34(3):415-418
Many studies have examined how humans and other animals reestablish a sense of direction following disorientation in enclosed environments. Results showing that geometric shape of an enclosure is typically encoded, sometimes to the exclusion of featural cues, have led to suggestions that geometry might be encoded in a dedicated geometric module. Recently, Miller and Shettleworth (2007) proposed that the reorientation task be viewed as an operant task and they presented an associative operant model that appears to account for many empirical findings from reorientation studies. In this paper we show that, although Miller and Shettleworth's insights into the operant nature of the reorientation task may be sound, their mathematical model has a serious flaw. We present simulations to illustrate the implications of the flaw. We also propose that the output of a simple neural network, the perceptron, can be used to conduct operant learning within the reorientation task and can solve the problem in Miller and Shettleworth's model. 相似文献