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91.
Peter G. Enticott Hayley A. Kennedy Patrick J. Johnston Nicole J. Rinehart Bruce J. Tonge John R. Taffe 《Cognition & emotion》2013,27(6):1110-1118
There is substantial evidence for facial emotion recognition (FER) deficits in autism spectrum disorder (ASD). The extent of this impairment, however, remains unclear, and there is some suggestion that clinical groups might benefit from the use of dynamic rather than static images. High-functioning individuals with ASD (n = 36) and typically developing controls (n = 36) completed a computerised FER task involving static and dynamic expressions of the six basic emotions. The ASD group showed poorer overall performance in identifying anger and disgust and were disadvantaged by dynamic (relative to static) stimuli when presented with sad expressions. Among both groups, however, dynamic stimuli appeared to improve recognition of anger. This research provides further evidence of specific impairment in the recognition of negative emotions in ASD, but argues against any broad advantages associated with the use of dynamic displays. 相似文献
92.
This study aimed to prospectively examine the role of peer and media influences in the development of body satisfaction (incorporating the desire for thinness and satisfaction with appearance) in young girls, as well as the relationship between body satisfaction and self-esteem. A sample of 97 girls 5-8 years of age completed individual interviews at Time 1 and 1 year later at Time 2. Linear panel analyses found that Time 1 perception of peers' desire for thinness was temporally antecedent to girls' desire for thinness, appearance satisfaction, and self-esteem 1 year later. In addition, the watching of appearance-focused television programs was temporally antecedent to appearance satisfaction. Finally, girls' desire for thinness was found to temporally precede low self-esteem. Thus, as early as school entry, girls appear to already live in a culture in which peers and the media transmit the thin ideal in a way that negatively influences the development of body image and self-esteem. 相似文献
93.
Stressful events, by their effects on neurotransmitter and neuroendocrine processes, are thought to favor the development or exacerbation of depressive illness. In as much as immunological challenge, may provoke stressor-like neuroendocrine and central neurochemical changes, the view was offered that immune activation essentially acts like a stressor and may contribute to the evolution of affective illness. In this respect, viral and bacterial infections appear to influence behavioral/metabolic (e.g. fever, anorexia, somnolence) and neurotransmitter functioning through the release of cytokines, which act as messengers between the immune system and brain. The present report provides a brief overview of the neurochemical consequences of proinflammatory cytokine treatments, particularly the actions of interleukin (IL)-1beta and tumor necrosis factor-alpha. As well, synergy with psychogenic and neurogenic stressors are described, as are data showing that cytokines, like stressors, may have time-dependent proactive (sensitization) effects, so that reexposure to the treatments greatly augments hypothalamic-pituitary-adrenal activity, as well as central neurochemical changes. Indeed, the neurotransmitter alterations are not restricted to hypothalamic nuclei, but occur in several extrahypothalamic sites, including various limbic regions. It is suggested that by virtue of these neurochemical changes, cytokines may have both immediate and proactive effects on mood states. 相似文献
94.
W. J. Jacobs Ph.D. James R. Blackburn M.A. 《Integrative psychological & behavioral science》1987,22(3):118-121
Ten rats were deprived of water and trained to lick a tube for saccharin reinforcement. In each of the two sessions that followed, the rats received six contiguous pairings of a 30-second illumination of the houselight and a 0.75 second, 0.10 mA electric shock while licking. No sign of conditioning was observed during the first experimental session, but profound conditioning was observed on the first and subsequent trials of the second conditioning session. No comparable change in the rate of licking was observed in groups of rats that received only presentations of the visual stimulus, only presentations of the electric shock, or random presentation of the visual stimulus and electric shock during the first conditioning session. These data establish that the incubation of conditional suppression is an associative phenomenon. 相似文献
95.
We present a model of Pavlovian excitatory conditioning in which associative strength and malleable central representations
of unconditional stimuli determine the strength of conditional responding. Presentation of a conditioned stimulus acts through
an experientially determined associative bond to activate a representation of the unconditional stimulus. The activation of
the representation produces a conditioned response. A striking feature of the model is its ability to describe changes in
conditioned response magnitude in terms of alterations of representations of the unconditional stimulus. Another is its acknowledgement
of the capacity of associative bonds to survive behavioral extinction. The model describes much of the data reported from
excitatory conditioning experiments and predicts counterintuitive phenomena.
This work was supported by Natural Sciences and Engineering Research Council grant #U0262 awarded to the first author. 相似文献
96.
Hybrid languages and temporal logic 总被引:5,自引:0,他引:5
97.
98.
Professional values of 241 practicing physicians were determined from factor analyzing their responses to 25 questionnaire items dealing with an ideal medical school in their vicinity. The seven factors (values)—(1) Academic, (2) Professional Separatism, (3) Support, (4) Social Welfare, (5) Research/Specialization, (6) Status/ Prestige, and (7) Convenience—were examined for their relationship to background characteristics (e.g., training) and practice (e.g., specialty). Few differences were found. However, when values were analyzed by age and career stage, significant fluctuations were found. Levinson's adult development theory was able to account for a sizeable portion of the observed variations. Practical and theoretical consequences are discussed in connection with physician stress at critical career stages. 相似文献
99.
Joseph S. Lappin C. R. Snyder Cheryl Blackburn 《Attention, perception & psychophysics》1971,10(2):123-128
Two experiments compared the effectiveness of variable physical dimensions and relationships among the components of individual stimulus patterns as means for encoding perceptual information. Four different codes were constructed in which letters (A through P) were represented by redundant combinations of the shape and brightness of the four component forms in each stimulus pattern. Three of the codes differed in terms of the physical variables that were redundant, and a fourth code was designed to simplify the relationships within individual stimulus patterns. Ss were asked to identify each pattern by naming its letter label as rapidly as possible. Differences in the speed of identification between codes and between individual patterns within codes indicated that perceptual information was effectively encoded by the organization of relationships within individual stimulus patterns. The representation of stimulation in terms of relationships among components has several implications for models of human information processing. 相似文献
100.