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121.
Linda M. Collins Steve Sussman Jill Mestel Rauch Clyde W. Dent C. Anderson Johnson William B. Hansen Brian R. Flay 《Journal of applied social psychology》1987,17(6):554-573
Understanding the psychosocial factors that predict cigarette smoking onset in young people is of crucial importance for prevention efforts. The present study examined prospective psychosocial predictors of smoking in a three-wave longitudinal data set. Similar in design to an earlier study by Chassin, Presson, Sherman, Corty, and Olshavsky (1984), the present study replicated their work, and extended it by (a) using composite predictors derived from exploratory factor analysis, (b) including prior behavior as a predictor, (c) using a design extended over three waves of data collection, and (d) using a sample composed primarily of urban teenagers. Subjects were 3295 7th-grade students at the beginning of the study. The subjects completed a questionnaire containing items tapping cigarette smoking behavior and psychosocial items that have previously been shown to predict smoking behavior. Forty-one psychosocial items on the Wave 1 (initial) questionnaire were factor analyzed, and five factors were retained. Subscale scores were constructed based on these factors and were used as predictors. Regression analyses were performed using the subscales and pretest smoking frequency to predict a continuous measure of smoking, and discriminant analyses were performed to predict transitions between qualitative levels of smoking. Prior smoking behavior was the most important predictor of future smoking. Four of the subscales, Social Disapproval, Risk Taking/Rebelliousness, Perceived Smoking Prevalence, and Motivation to Comply, were significant predictors. One subscale, Physical Consequences from Smoking, was not predictive of smoking in any of the analyses. The effect sizes cross-validated well. It is suggested that an integrative model of smoking initiation developed by Flay, d'Avernas, Best, Kersell, and Ryan (1983) best summarizes the results of the present study. 相似文献
122.
Curtiss P. Hansen Psy.D. 《Journal of business and psychology》1988,2(4):346-365
The research relating personality traits to industrial and traffic accidents is reviewed. The research from the past 15 years is integrated with the multitude of studies preceding this period. All of the research is interpreted in terms of the differential accident liability concept, rather than the discredited accident proneness theory. The need to control for the confounding effects of age, experience, sex, and accident risk is discussed. It is concluded that the personality traits of extroversion, locus of control, impulsivity, aggression, social maladjustment, and some aspects of neurosis are related to the occurrence of accidents. Finally, the need to develop causal models of the personality-accident process and to identify causal influences through time series designs is proposed. 相似文献
123.
Steve Sussman Clyde W. Dent Jill Mestel-Rauch C. Anderson Johnson William B. Hansen Brian R. Flay 《Journal of applied social psychology》1988,18(7):537-551
The present study tested three assumptions often made by smoking prevention researchers and practitioners regarding the nature and causes of smoking prevalence estimates. Specifically, it is often assumed that (a) adolescent prevalence estimates of all levels of smoking are inflated, (b) youths at different stages of smoking onset all overestimate smoking prevalence, and (c) the predictors of these estimates are the same for youths at different stages of smoking onset. Measures of smoking behavior based on self-reports using a bogus pipeline procedure, estimates of cigarette smoking prevalence (trying behavior and weekly use), and reports of smoking in significant others were obtained by the same youths when they were in eighth and ninth grades. Results indicated that, taken over all youths, estimates of trying cigarettes were accurate, whereas estimates of weekly use were inflated. When responders were defined by their stage of smoking onset, either as a nonsmoker, trier, or regular smoker, analyses revealed that triers were accurate regarding prevalence estimates of trying, whereas non-smokers made gross underestimations and regular smokers made overestimations of trying. All groups of youths overestimated prevalence of weekly smoking. Analyses of variance revealed that both youths' smoking status and interpersonal smoking environment additively predicted prevalence estimates, and estimates of smoking prevalence were relatively higher in youths who began to smoke, or increased their levels of smoking, within the next year. Thus, previous assumptions were partially confirmed. Future research and prevention programming should focus more on regular smoking as the focus of normative smoking distortion effects and correction efforts. 相似文献
124.
Sex differences in investigatory and grooming behaviors of laboratory rats (Rattus norvegicus) following exposure to novelty 总被引:1,自引:0,他引:1
D H Thor R J Harrison S R Schneider W J Carr 《Journal of comparative psychology (Washington, D.C. : 1983)》1988,102(2):188-192
Prior research suggested that during exposure to novel stimuli, rodent investigation and self-grooming behaviors may be sexually dimorphic and interact with ambient illumination. To test this notion we compared the behavior of adult male and female groups of Long-Evans hooded rats in normal room lighting (860 lx) and in very dim, red light (0.2 lx) following exposure to a novel juvenile conspecific. Illuminance level had little or no effect, but investigatory and subsequent self-grooming behaviors of males were substantially greater than those of females, and females engaged in greater ambulatory activity than did males. In a second experiment adult males and females were exposed to a novel inanimate object. No reliable sex differences were observed. We conclude that social novelty, as provided by exposure to a juvenile conspecific, stimulates greater investigation and postinvestigatory self-grooming than exposure to a novel inanimate object and that exposure to novel conspecifics presents a useful method for the investigation of sex differences, gonadal hormone effects, and interactions of hormones with neurotransmitter systems governing motor control systems. 相似文献
125.
126.
Toward neuroanatomical models of analogy: a positron emission tomography study of analogical mapping 总被引:7,自引:0,他引:7
Wharton CM Grafman J Flitman SS Hansen EK Brauner J Marks A Honda M 《Cognitive psychology》2000,40(3):173-197
Several brain regions associated with analogical mapping were identified using (15)O-positron emission tomography with 12 normal, high intelligence adults. Each trial presented during scanning consisted of a source picture of colored geometric shapes, a brief delay, and a target picture of colored geometric shapes. Analogous pictures did not share similar geometric shapes but did share the same system of abstract visuospatial relations. Participants judged whether each source-target pairing was analogous (analogy condition) or identical (literal condition). The results of the analogy-literal comparison showed activation in the dorsomedial frontal cortex and in the left hemisphere; the inferior, middle, and medial frontal cortices; the parietal cortex; and the superior occipital cortex. Based on these results as well as evidence from relevant cognitive neuroscience studies of reasoning and of executive working memory, we hypothesize that analogical mapping is mediated by the left prefrontal and inferior parietal cortices. 相似文献
127.
Human movement performance is subject to many physical and psychological constraints. Analyses of these constraints may not
only improve our understanding of the performance aspects that subjects need to keep under continuous control, but may also
shed light on the possible origins of specific behavioral preferences that people display in motor tasks. The goal of the
present paper is to make an empirical contribution here. In a recent simulation study, we reported effects of pen-grip and
forearm-posture constraints on the spatial characteristics of the pen tip's workspace in drawing. The effects concerned changes
in the location, size, and orientation of the reachable part of the writing plane, as well as variations in the computed degree
of comfort in the hand and finger postures required to reach the various parts of this area. The present study is aimed at
empirically evaluating to what extent these effects influence subjects' graphic behavior in a simple, free line-drawing task.
The task involved the production of small back-and-forth drawing movements in various directions, to be chosen randomly under
three forearm-posture and five pen-grip conditions. The observed variations in the subjects' choice of starting positions
showed a high level of agreement with those of the simulated graphic-area locations, showing that biomechanically defined
comfort of starting postures is indeed a determinant of the selection of starting points. Furthermore, between-condition rotations
in the frequency distributions of the realized stroke directions corresponded to the simulation results, which again confirms
the importance of comfort in directional preferences. It is concluded that postural rather than spatial constraints primarily
affect subjects' preferences for starting positions and stroke directions in graphic motor performance. The relevance of the
present modelling approach and its results for the broader field of complex motor behavior, including the manipulation of
tools, is indicated briefly.
Received: 9 March 1998 / Accepted: 27 November 1998 相似文献
128.
The authors examined strategic selection of visual samples during manual aiming. Participants (N = 12) wore liquid-crystal goggles while performing discrete movements to a small target. Initially, participants controlled a 40-ms visual sample via a switch in their nonaiming hand. Subsequently, experimenter-imposed strategies required participants to take visual samples before movement initiation or early or late in the movement. Although participants adopted a variety of strategies to optimize the use of vision, they were more likely to select a sample during the early stages of the movement. Experimenter-imposed early and late instructions resulted in longer movement times than did self-selected sampling. Compared with late sampling, early sampling resulted in a temporal advantage with similar accuracy. 相似文献
129.
The authors examined the means by which people vary movement parameters to satisfy more than 1 constraint at a time in a repetitive motor task. The authors expected that when participants (N = 12) were simultaneously confronted with spatial and temporal constraints in an ellipse-drawing task, they would either exploit the intrinsic amplitude-frequency relationships or activate less natural control regimes to prioritize their movement goals. By focusing on local amplitude and frequency errors and parameter changes from 1 movement to the next, the authors distinguished parameter changes that reflected exploitation of biomechanics from those that required deliberate control. The findings demonstrated that at low movement speeds, participants can pursue multiple movement goals simultaneously; at higher speeds, their capacity to satisfy multiple task goals is reduced. The authors used a new method of inferring deliberate control from movement kinematics in the present study. 相似文献
130.
Three experiments examined whether the mere priming of potential action effects enhances people's feeling of causing these effects when they occur. In a computer task, participants and the computer independently moved a rapidly moving square on a display. Participants had to press a key, thereby stopping the movement. However, the participant or the computer could have caused the square to stop on the observed position, and accordingly, the stopped position of the square could be conceived of as the potential effect resulting from participants' action of pressing the stop key. The location of this position was primed or not just before participants had to stop the movement. Results showed that (subliminal as well as supraliminal) priming of the position enhanced experienced authorship of stopping the square. Additional experimentation demonstrated that this priming of agency was not mediated by the goal or intention to produce the effect. 相似文献