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301.
There has been a conceptual revolution in the biological sciences over the past several decades. Evidence from genetics, embryology, and developmental biology has converged to offer a more epigenetic, contingent, and dynamic view of how organisms develop. Despite these advances, arguments for the heuristic value of a gene-centered, predeterministic approach to the study of human behavior and development have become increasingly evident in the psychological sciences during this time. In this article, the authors review recent advances in genetics, embryology, and developmental biology that have transformed contemporary developmental and evolutionary theory and explore how these advances challenge gene-centered explanations of human behavior that ignore the complex, highly coordinated system of regulatory dynamics involved in development and evolution. 相似文献
302.
303.
Life events, fitness, hardiness, and health: a simultaneous analysis of proposed stress-resistance effects 总被引:2,自引:0,他引:2
D L Roth D J Wiebe R B Fillingim K A Shay 《Journal of personality and social psychology》1989,57(1):136-142
The effects of exercise participation, self-perceived fitness level, and dispositional hardiness for promoting stress resistance were examined in a sample of 373 college students. Self-report measures of stressful life experience and recent physical illness were positively correlated, and fitness and hardiness were negatively correlated with illness as expected. Multiple regression analyses indicated that neither fitness nor hardiness provided a stress-moderator effect because neither was found to significantly interact with stress in the prediction of illness scores. Structural equation analyses suggested that hardiness may affect health indirectly by first influencing either the occurrence or subjective interpretation of stressful life events. No direct effect on health was found for exercise participation, although exercise may reduce illness indirectly by improving fitness. Implications for the multivariate modeling of proposed stress-resistance-enhancing effects are discussed. 相似文献
304.
The impact of two types of eyewitness testimony on mock jurors' judgments was explored. A crime eyewitness either testified that the defendant definitely was the robber (identification), definitely was not the robber (nonidentification), or that they weren't sure if he was or was not the robber (control). An alibi eyewitness testified that the defendant either definitely was at the alibi location (identification), definitely was not at the alibi location (nonidentification), or he wasn't sure if the defendant was or was not at the alibi location (control). Strength of case was also manipulated. Results show that crime eyewitness identifications and alibi eyewitness nonidentifications were underutilized. A crime eyewitness by alibi eyewitness interaction revealed that within the crime eyewitness identification condition alibi identification was underutilized whereas with the other two crime eyewitness conditions, alibi nonidentification information was underutilized. The results supported a disconfirmed expectancy explanation. 相似文献
305.
James Hunter M.S.W. 《Journal of religion and health》1992,31(1):53-71
Secular and religious counselors require a model of psychotherapy that conceptualizes human beings as conscious, goal-seeking entities. Such a model, based on the construct being in one's own world, is sketched in broad outline in this essay. The building blocks for the model are the intentional modes that lie at the heart of the self-world dialectic in which we live our lives. It is demonstrated how these intentional modes are organized into a gestalt-like whole referred to as the existential gestalt. From the diagram of the existential gestalt the concepts of intentional clarity and modal congruence are derived. These concepts enable us to understand the processes of the fragmentation and re-integration of experience that lie at the heart of psychotherapy. Inclusiveness and purposefulness, two additional factors that are important for assessing the adequacy of the existential gestalt, are also briefly touched upon. 相似文献
306.
A relatively simple, remote keyboard switch for the IBM PC/AT and compatibles is discussed. It may be used to isolate a subject from an experimenter when the experimenter is controlling an experiment with the PC. The device, based on a 4066 CMOS, when used in conjunction with a monochrome monitor and a color monitor, enables the experimenter to switch, manually or programmatically (TTL), between the local monitor and the local keyboard and a remote monitor and a remote keyboard for presentation of stimuli and for recording of subject’s responses. 相似文献
307.
One hundred and thirty-four health professionals read one of 12 fictional case histories in which the patient was diagnosed as being either HIV- or Hepatitis B-positive. For each diagnosis infection was attributed to sexual contact, IV drug use, or a transfusion of contaminated blood. Within each diagnostic category, and for each source of infection, the patient was identified as either heterosexual or homosexual. Although homophobia has been suggested as a major contributor to negative attitudes toward people with AIDS, the present results remained significant even after homophobia, as measured by Hudson and Ricketts (1980), had been controlled for statistically. Regardless of disease, patients infected through IV drug use or sexual contact were seen as equally culpable and more responsible for their condition than those infected by transfusion. HIV, but not Hepatitis B, patients infected by sex or IV drug use were perceived as having less moral integrity than those infected by transfusion. Source of infection also influenced respondents' desire for close personal interaction. Negativity toward particular patient groups based merely on information about patient lifestyles was clearly demonstrated and it is suggested that negative attitudes toward people with AIDS may be a reflection of negative attitudes toward sexuality generally, rather than homosexuality. 相似文献
308.
James Hunter M.S.W. 《Journal of religion and health》1991,30(1):59-79
The philosophical quest for unity leads to the desire for a clear and adequate conception of human reality as a “mind-body unity.” This quest for unity has led both to conceptions of considerable heuristic value and to overly reductionistic approaches that impoverish our full relation to reality. Three basic themes are developed in this essay:
- That on an ontological level dualistic and monistic approaches to mind-body remain equally plausible.
- That on a practical level, epistemological considerations require us to retain a dualistic approach suggested by the terms “person” and “organism.”
- That psychotherapy (whether religious or secular) must ground itself in the notion of “person.”
309.
Performance on variable-interval schedules arranged singly and concurrently 总被引:18,自引:17,他引:1
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Extensive parametric data were obtained from pigeons responding on variable-interval schedules arranged on three, two, and one response keys. Number of responses on the keys, the time spent responding on the keys, and the number of reinforcements obtained on the keys were measured. Response rates on each key were an increasing function of the reinforcement rate on that key, and an inverse function of the reinforcement rate on the other keys. In terms of preference, both response and time-allocation ratios undermatched ratios of obtained reinforcements, and the degree of undermatching was consistent both within, and between, two- and three-schedule data. When absolute response-rate data were analyzed according to Herrnstein's (1970) quantitative account, obtained values of assumed constants were not consistent either within or between conditions. However, a power-function modification of Herrnstein's account fitted the data well and provided similar exponent values to those obtained for the undermatching of preference ratios. 相似文献
310.