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841.
Attentional deficits in patients suffering traumatic brain injury (TBI) can occur with minor to severe impact to the brain. Based on reviews of both the cognitive and neurobehavioral literature, the following three concepts of attention are addressed: (a) arousal/alertness, (b) selective attention, and (c) energetic aspects of attention, which include such components as effort, resource allocation, and speed of processing. Within each concept, definitions are proposed, the underlying brain mechanisms are identified, and the specific deficits associated with TBI are explored. This review combines theoretical perspectives and clinical findings with the objective of leading toward a diagnostic differentiation that in turn will benefit treatment planning. 相似文献
842.
Cynthia A. Laurie Joel S. Warm William N. Dember Robert A. Frank 《Attention, perception & psychophysics》1994,55(4):394-398
The present study constituted an initial experimental effort to examine the fragmentation characteristics of subjective contours within the photopic and upper 5cotopic ranges of illumination. Four stimulus factors known to influence the visibility of subjective contours—target luminance, inducing area size and contrast, and contour orientation—were examined. Results indicated that subjective contours are indeed unstable perceptual phenomena. On the average, fragmentation or fading occurred after only 15 sec of observation, and some farm of stimulus outage was present for 28% of the viewing time of each stimulus. Fragmentation latency was significantly shorter and total time in fragmentation longer for diamond than for square contours, and total time in fragmentation varied inversely with inducing-area size. Fragmentation tendedto occur in whole units rather than in isolated elements, a result reminiscent of the fading of real Contours under impoverished viewing conditions. 相似文献
843.
The Mental Health Studios is an interactive multimedia program designed to educate the public about the biological basis of mental and addictive disorders. Using sound, text, graphics, charts, and video, the software provides detailed scientific information about the brain and depression, bipolar disorder, schizophrenia, anxiety disorders, and substance abuse. An evaluation study of a permanent display at the St. Louis Science Center revealed that most visitors spent less than 5 min with the computer program but nevertheless demonstrated significant changes in attitude toward people with mental and addictive disorders. Senior high-school students who interacted with the program for 20 min experienced even greater attitude changes, and their knowledge about mental and addictive disorders also increased significantly. 相似文献
844.
A number of studies have failed to find that gender constancy (understanding that one's gender is permanent) predicts gender-typed attitudes and behavior. This study (run with a predominantly white sample) tests the hypothesis that gender constant children are motivated to master gender roles, but that how well they do so depends on their knowledge of gender stereotypes. We predicted that attitudes toward computer use (a stereotypically male activity) would be less positive only for 5–9-year-old gender constant girls who also had rich gender stereotypes. Predictions were confirmed, especially for girls whose constancy had recently increased. These data thus suggest that the clearest picture of gender role development emerges when both the unique and interactive effects of gender constancy and gender schema development are assessed. They also indicate that gender differences in computer attitudes can develop through self-socialization processes.This research was supported in part by research Grant No. R37 MH37215 and Research Scientist Development Award No. 00484 from the National Institute of Mental Health to the third author. The first two authors gratefully acknowledge the support of the James S. McDonnell Foundation. All authors would also like to thank Tom Alfieri, Faith Greulich, and Lisa Cyphers for their help at various stages of this project. 相似文献
845.
Leora N. Rosen Doris Durand David J. Westhuis Joel M. Teitelbaum 《Journal of applied social psychology》1995,25(8):677-692
One year after Operation Desert Storm, marital adjustment was studied among 773 Army spouses married to soldiers who had been deployed. Interviews with some spouses and soldiers, conducted during site visits to a sample of installations, led to the identification of 19 marital adjustment events. Questions regarding these events were included in a mailed questionnaire that was sent to a sample of Army spouses. A factor analysis of the 19 events produced five factors: (a) Distance, (b) Closeness, (c) Role sharing, (d) Independent Spouse, (e) Dependent Spouse/Withdrawn Soldier. Predictors of factor scores were examined through multiple regression analysis. Predictors of factor scores included stress, prior marital problems, social support, and emotional well-being. Most spouses adjusted well to the deployment. Adjustment patterns are discussed in light of previous literature on war separation and attachment theory. 相似文献
846.
Richard M. Ryckman Suzanne S. Graham Bill Thornton Joel A. Gold Marc A. Lindner 《Journal of applied social psychology》1998,28(20):1876-1888
This research focuses on male and female observers' attributions of responsibility to a female accuser and a male accused of rape. Observers read 1 of 2 scenarios in which the accuser was either smaller or larger than the accused and then made judgments concerning each person's responsibility for what happened. The data indicated that the larger accuser was considered more responsible than the smaller accuser and the larger accused was perceived to be more responsible than the smaller accused. Females attributed more responsibility and had less sympathy, respect, and liking for the accused, whereas males attributed more responsibility and reported more negative attitudes toward the accuser. The results are discussed in terms of their implications for legal and health-care professionals. 相似文献
847.
Joel R. Wagaman Raymond G. Meltenberger Richard E. Arndorfer 《Journal of applied behavior analysis》1993,26(1):53-61
We investigated the effectiveness of a simplified program for the treatment of stuttering in children. The simplified treatment included awareness training, in which the subjects learned to detect every occurrence of stuttering; training a response incompatible with stuttering, which involved relaxation and regulation of air flow over the larynx when speaking; and social support, which involved parent-delivered prompts and praise of children's use of the techniques in everyday environments. Eight children were treated in their homes with the simplified treatment, in a multiple baseline across subjects design, and all reached the criterion level of less than 3% words stuttered. In addition, the reduction in stuttering generalized to the school setting and was maintained at posttreatment (10 to 13 months). The subjects' rates of speech remained stable throughout baseline and treatment. Pretreatment and posttreatment ratings by the parents showed that they found treatment to be both acceptable and credible. Finally, social validity measures revealed a noticeable improvement in the subjects' speech to parents and speech pathologists. 相似文献
848.
Task-Intrinsic and Social-Extrinsic Sources of Arousal for Motives Assessed in Fantasy and Self-Report 总被引:1,自引:0,他引:1
ABSTRACT A review of the literature on individual differences in motive dispositions points toward the importance of distinguishing between motives as assessed in fantasy and self-report. We proposed that these two modes of assessment have identified independent motivational systems that influence behavior in different ways. Two experiments were designed to show that the two kinds of motives are unrelated to one another and are aroused by different factors in a performance situation. It was hypothesized that motives as assessed from fantasy (seen as implicit needs) are primarily aroused by factors intrinsic to the process of performing an activity, whereas motives obtained through self-report inventories (seen as self-attributed needs) are aroused by social factors that are extrinsic to the process of performing an activity (e.g., the way in which a task is presented by an experimenter). In the first experiment, performance on a memory task was shown to depend on the interaction of subjects' self-reported motive for achievement with achievement-arousing instructions, whereas performance on a word-finding puzzle depended on the interaction of subjects' fantasy need for achievement with the puzzle's level of intrinsic challenge. A second experiment generalized these findings to the power domain. 相似文献
849.
850.
Timothy R. Vollmer Henry S. Roane Joel E. Ringdahl Bethany A. Marcus 《Journal of applied behavior analysis》1999,32(1):9-23
In prior research, differential reinforcement of alternative behavior (DRA) has been implemented at optimal treatment values: Problem behavior is never reinforced, and alternative behavior is always reinforced. However, in application, DRA is unlikely to be conducted optimally. In this study, following a functional analysis phase and a differential reinforcement at full implementation phase, we challenged initially positive treatment effects for 3 participants by implementing DRA at less than optimal parameters. For example, some occurrences of problem behavior were reinforced, and some occurrences of alternative behavior were not reinforced. Results suggested that when exposed to DRA at full implementation, participants showed a bias toward appropriate behavior in subsequent conditions during which “mistakes” (treatment challenges) were intentionally introduced. In addition, the negative effects of treatment challenges were quickly reversible, in comparison to the positive effects of DRA, which were not quickly reversible in the face of treatment challenges. 相似文献