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771.
The pooling of information from simultaneous, spatially congruent auditory and visual stimuli is examined in a signal detection task. The paradigm used permits discrimination among a number of models of the decision mechanisms involved in processing multiple component stimuli. Parameter-free predictions are presented for the weighted integration model and for three versions of the independent decisions model. The data support an independent decisions model of the bimodal detection process in which attention is shared equally between modalities. 相似文献
772.
In an effort to objectify neuropsychologic evaluations, consideration of a patient's emotional behavior has often been neglected. An extensive literature review is undertaken in an effort to document lateralized emotional behaviors commonly found in brain injury populations. This evidence is contrasted with the psychiatric symptoms and lateralized neuropsychologic impairments seen in major depression and schizophrenia. A theoretical model is then proposed that attempts to integrate these functional vs. organic symptoms based upon reciprocal inhibition of lateralized emotional functioning in brain injury and psychiatric disorders. This opponent process model not only seems to account for some of the discrepant findings in the literature, but additionally provides a cogent and useful marker to neurophychologically differentiate neuronal vs. metabolic disorders. The model further suggests new ways of envisioning treatment and recovery from both psychiatric illness and brain injury. 相似文献
773.
The potential impact of repeated questioning of a witness was examined. Subjects were shown slides depicting the aftermath of a theft and subsequently were asked several times to recall selected details of what they saw. Previous experiments employing simple verbal materials have demonstrated that information addressed by questioning becomes more recallable in the future than it would have been without such retrieval practice, but other information, especially that bearing a categorical similarity to the practiced items, becomes less recallable. Such positive and negative effects appeared in subjects’ later recall of crime-scene details in the present experiment. These results have an important implication for legal practice: Repeated interrogation of a witness can modify the witness’s memory-enhancing the recall of certain details while inducing the forgetting of other details-even when no misinformation is contained or implied in the questioning. 相似文献
774.
The intentional spring: a strategy for modeling systems that learn to perform intentional acts 总被引:2,自引:0,他引:2
In motor task learning by instruction, the instructor's skill and intention, which, initially, are extrinsic constraints on the learner's perceiving and acting, eventually become internalized as intrinsic constraints by the learner. How is this process to be described formally? This process takes place via a forcing function that acts both as an anticipatory (informing) influence and a hereditary (controlling) influence. A mathematical strategy is suggested by which such intentions and skills might be dynamically learned. A hypothetical task is discussed in which a blindfolded learner is motorically instructed to pull a spring to a specific target in a specific manner. The modeling strategy involves generalizing Hooke's law to the coupled instructor-spring-Learner system. Specifically, dual Volterra functions express the anticipatory and hereditary influences passed via an instructor-controlled forcing function on the shared spring. Boundary conditions (task goals) on the instructor-spring system, construed as a mathematical (self-adjoint) operator, are passed to the learner-spring system. Psychological interpretation is given to the involved mathematical operations that are passed, and mathematical (Hilbert-Schmidt's and Green's function) techniques are used to account for the release of the boundary conditions by the instructor and their absorption by the learner, and an appropriate change of their power spectra. 相似文献
775.
The study addressed 2 major issues: whether there are age differences on an implicit word-stem-completion task and whether age differences on both implicit and explicit memory would decrease with increased environmental support. A total of 287 Ss were presented with words in an incidental learning task with structural or semantic processing. Following 2 filler tasks, Ss received an implicit or an explicit word-stem-completion task. The number of letters in the stem varied from 2 to 4. Results yielded an Age x Memory Task dissociation such that there were large age differences on the explicit task and no age difference on the implicit task, regardless of whether Ss aware of the memory test were included or excluded. There was no evidence that environmental support improved older adults' performance more than that of younger adults on either memory task. 相似文献
776.
The importance of the individual in the ‘causal’ relationship between attractiveness and self-esteem
Pamela Kenealy Kate Gleeson Neil Frude William Shaw 《Journal of community & applied social psychology》1991,1(1):45-56
This paper argues that many psychological explanations underlying health and social behaviour stress the importance of the relationship between attractiveness and self-esteem. The nature of this relationship is not well understood, yet can have important implications for the individual in areas of medical intervention which involve treatment on aesthetic grounds. A survey of psychosocial factors among 1018 children aged 11-12 years is reported. The study examined the association between perception of physical attractiveness and self-esteem in order to clarify the relationship between self-esteem and self versus others' perception of attractiveness. Self-ratings of attractiveness were linked to judges' ratings to determine whether subjects underrated, over-rated, or accurately perceived their own physical attractiveness. The results showed that although ratings of general facial attractiveness by others were associated with self-perceived attractiveness, in the specific area of dental health, attractiveness (as judged by others) was not. There were no significant relationships between ratings of attractiveness by others and self-esteem. Self-perception of attractiveness, however, was significantly associated with self-esteem. Further analyses showed that children who under-rated their own facial attractiveness had a lower mean score for self-esteem than over-raters or accurate perceivers (who did not differ significantly). In contrast, under-raters of dental attractiveness had a lower mean score for self-esteem than over-raters, but did not differ significantly from accurate perceivers. Over-raters of dental attractiveness had a higher mean score for self-esteem than accurate perceivers. These finding suggest that if an over-rater were to receive treatment on aesthetic grounds it is unlikely, given that they have high self-esteem already, that such intervention will have a profound psychological impact. These data indicate the importance of determining the way in which individuals evaluate their appearance compared to others, and may help to clarify previously equivocal findings concerning the relationship between self-esteem and attractiveness. 相似文献
777.
Crista A. Brett Psy.D. Alan S. Brett M.A. Sarah S. Shaw Ph.D. 《Journal of Contemporary Psychotherapy》1993,23(4):255-266
This pilot study was an attempt to empirically validate some of the clinical observations made about traumatic incidents and families in the literature. The study hypothesized that there would be a significant difference in family functioning between those subjects that reported feeling traumatized and those subjects that did not report feeling traumatized, there would be a significant difference in anxiety between the identified trauma group and the identified non-trauma group, and there would be a significant difference in the breadth of support systems between the two groups. The results indicated that there were significant differences between groups of individuals who were identified as traumatized or non-traumatized. The differences included family functioning, individual feelings of anxiety, and report of familial support systems. The findings of this study were congruent with and supportive of much clinical literature on families and traumatic incidents. 相似文献
778.
Investigators have suggested that alexithymia is a multidimensional construct and that it is responsive to situational stressors. We tested these hypotheses in a sample of 110 freshman medical students. We conducted factor analyses on the Toronto Alexithymia Scale (TAS), the Beck Depression Inventory (BDI), and the state portion of the State-Trait Anxiety Inventory (STAI) and then used LISREL to examine the relationships among the various factors. The results indicated that the TAS consists of several independent dimensions and that the dimensions associated with difficulties identifying and communicating feelings are positively related to depression and anxiety. Thus, the evidence now affirms that alexithymia (as measured by the TAS) is multidimensional and that certain dimensions are state dependent. 相似文献
779.
The purpose of this study was to determine whether hypermnesia (improved net recall over time) can be differentially affected by manipulating the nature of tasks performed during the intervals between successive recall trials. In Experiment 1, all subjects were asked to imaginally encode separate words and were tested three times for recall. The control group (no interpolated task) produced the hypermnesia effect. Both groups performing interpolated tasks showed significantly lower recall. A second experiment was conducted in order to replicate these results and to examine the effects of intertest rehearsal on hypermnesia. In Experiment 2, subjects were asked to encode pairs of words using interactive-imagery instructions. Six different interpolated task conditions were employed, varying in the degree to which subsystems of working memory were used. Groups performing imaginal interpolated tasks showed no hypermnesia, whereas those performing nonimaginal tasks did. These findings suggest that access to working memory (see Baddeley, 1986) is not necessary for hypermnesia. 相似文献
780.
Sharon B. Shaw 《Group》1997,21(2):159-174
Caregiver support groups traditionally focus on education, reduction of social isolation, and supportive sharing. However,
the support group literature has increasingly reflected an interest in the emotional effects of caregiving. While some authors
promote the therapeutic value of supporting defenses against painful feelings, others have documented the value of encouraging
their expression in groups. This paper is based on the author’s experience in co-leading an Alzheimer’s family support group,
using a modern psychoanalytic approach which encourages the full expression of the caregivers’ emotional experience. Using
emotional communication to explore resistances to intimacy and aggression in groups, the author demonstrates how the interplay
of co-leadership and Modern Psychoanalytic theory and techniques promotes group cohesion and encourages maturational growth
in group members. This model is also prescribed as an antidote to leader “burnout,” a not uncommon phenomenon for leaders
of such emotionally charged groups.
Private Practice, New York, New York. 相似文献