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J. Elizabeth Bolhuis Marije Oostindjer Cindy W. F. Hoeks Elske N. de Haas Andrea C. Bartels Monique Ooms Bas Kemp 《Animal cognition》2013,16(5):845-850
Interest in cognitive research in pigs is increasing, but little is known about the impact of environmental conditions on pigs’ cognitive capabilities. The present study investigated the effect of environmental enrichment on cognitive performance of pigs in a holeboard spatial task, in which they had to discriminate four baited buckets out of 16. Pigs (n = 32) were either housed in stimulus-poor, barren pens, or in larger pens enriched with rooting substrates. Pigs were subjected to 30 holeboard trials. Both working memory (WM), that is, the ratio (baited visits/total number of (re)visits to baited buckets), and reference memory (RM), that is, the ratio ((re)visits to baited buckets/total number of visits to all buckets), improved over trials. WM scores were higher in pigs from enriched pens than in pigs from barren pens. Housing did not affect RM scores. Personality type of the pigs, as assessed early in life using a backtest, did not affect WM or RM. In conclusion, housing conditions of pigs did not affect reference memory, but environmental enrichment improved working memory of pigs in a spatial discrimination task. Based on the findings of this study, we suggest that cognitive functioning of pigs may be impaired under commonly used housing conditions. 相似文献
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Anita J. Schacht Daniel Kerlinsky Cindy Carlson 《International journal of group psychotherapy》2013,63(4):401-417
Group therapy is an essential component of the treatment of sexually abused children. Since the painful affects associated with the abuse are often dissociated or acted out, the group leaders learn of the affective experience of the abuse through the process of projective identification. The leaders must be aware of this process, set limits on the abusive acting out in the group, and help moderate, label, and empathize with the affect. It is through this difficult process that the children have a chance to reintegrate and work through their abuse experiences so they no longer feel compelled to act them out through repetitive abusive relationships. Specific leadership, countertransference, and projective identification issues in group therapy with sexually abused boys are discussed. 相似文献
95.
Proactive interference occurs when information from the past disrupts current processing and is a major source of confusion and errors in short-term memory (STM; Wickens, Born, & Allen, Journal of Verbal Learning and Verbal Behavior, 2:440–445, 1963). The present investigation examines potential boundary conditions for interference, testing the hypothesis that potential competitors must be similar along task-relevant dimensions to influence proactive interference effects. We manipulated both the type of task being completed (Experiments 1, 2, and 3) and dimensions of similarity irrelevant to the current task (Experiments 4 and 5) to determine how the recent presentation of a probe item would affect the speed with which participants could reject that item. Experiments 1, 2, and 3 contrasted STM judgments, which require temporal information, with semantic and perceptual judgments, for which temporal information is irrelevant. In Experiments 4 and 5, task-irrelevant information (perceptual similarity) was manipulated within the recent probes task. We found that interference from past items affected STM task performance but did not affect performance in semantic or perceptual judgment tasks. Conversely, similarity along a nominally irrelevant perceptual dimension did not affect the magnitude of interference in STM tasks. Results are consistent with the view that items in STM are represented by noisy codes consisting of multiple dimensions and that interference occurs when items are similar to each other and, thus, compete along the dimensions relevant to target selection. 相似文献
96.
The perception of time is heavily influenced by attention and memory, both of which change over the lifespan. In the current study, children (8 yrs), young adults (18–25 yrs), and older adults (60–75 yrs) were tested on a duration bisection procedure using 3 and 6-s auditory and visual signals as anchor durations. During test, participants were exposed to a range of intermediate durations, and the task was to indicate whether test durations were closer to the “short” or “long” anchor. All groups reproduced the classic finding that “sounds are judged longer than lights”. This effect was greater for older adults and children than for young adults, but for different reasons. Replicating previous results, older adults made similar auditory judgments as young adults, but underestimated the duration of visual test stimuli. Children showed the opposite pattern, with similar visual judgments as young adults but overestimation of auditory stimuli. Psychometric functions were analyzed using the Sample Known Exactly-Mixed Memory quantitative model of the Scalar Timing Theory of interval timing. Results indicate that children show an auditory-specific deficit in reference memory for the anchors, rather than a general bias to overestimate time and that aged adults show an exaggerated tendency to judge visual stimuli as “short” due to a reduction in the availability of controlled attention. 相似文献
97.
Khandis R. Blake Jennifer Yih Kun Zhao Billy Sung Cindy Harmon-Jones 《Cognition & emotion》2017,31(6):1153-1168
Skin-transmitted pathogens have threatened humans since ancient times. We investigated whether skin-transmitted pathogens were a subclass of disgust stimuli that evoked an emotional response that was related to, but distinct from, disgust and fear. We labelled this response “the heebie jeebies”. In Study 1, coding of 76 participants’ experiences of disgust, fear, and the heebie jeebies showed that the heebie jeebies was elicited by unique stimuli which produced skin-crawling sensations and an urge to protect the skin. In Experiment 2,350 participants’ responses to skin-transmitted pathogen, fear-inducing, and disgust-inducing vignettes showed that the vignettes elicited sensations and urges which loaded onto heebie jeebies, fear, and disgust factors, respectively. Experiment 3 largely replicated findings from Experiment 2 using video stimuli (178 participants). Results are consistent with the notion that skin-transmitted pathogens are a subclass of disgust stimuli which motivate behaviours that are functionally consistent with disgust yet qualitatively distinct. 相似文献
98.
Amarina Ariyanto Matthew J. Hornsey Cindy Gallois 《European journal of social psychology》2010,40(1):169-177
Ingroup members who criticize their group face much less resistance than outgroup members who say the same thing (the intergroup sensitivity effect). In the context of intergroup conflict, however, it was predicted that treatment of ingroup critics would not be so generous. Muslim Indonesians read an extract from an interview in which the speaker criticized Muslims. The comments were attributed to either another Muslim or to a Christian. Before reading the criticism, half of the participants had read an article describing intense conflict between Muslims and Christians in Indonesia, whereas the other half read a neutral article. As predicted, negativity toward the ingroup critic and the ingroup critic's comments increased in the conflict salience condition, to the point that the intergroup sensitivity effect disappeared. However, conflict salience did not have an effect on attributions of motive or on agreement with the message. Implications for our understanding of “patriotic criticism” are discussed. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
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Cindy M. Bukach Richard Le Grand Martha D. Kaiser Daniel N. Bub James W. Tanaka 《Journal of Neuropsychology》2008,2(1):227-244
Although most adults are considered experts in face recognition, brain trauma can produce a selective loss in this ability, a condition referred to as prosopagnosia. This study examined the processing strategies of prosopagnosic patients LR and HH using the Face Dimensions Test. In this test, featural and configural information in the upper and lower halves of the face was parametrically varied and sensitivity to these changes measured. We found that relative to age‐matched control participants, LR and HH exhibited an impaired ability to discriminate differences in the eye region, but a preserved ability to detect featural and configural differences in the mouth region. This pattern of impairment and sparing was demonstrated in tests of direct perception and immediate memory. The obtained findings demonstrate that prosopagnosia does not necessarily cause a global impairment to face perception, but a selective impairment to the perception of information in the upper half of the face. 相似文献