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101.
102.
Frances A. Maratos Karin Mogg Brendan P. Bradley Gina Rippon Carl Senior 《Cognitive, affective & behavioral neuroscience》2009,9(2):133-143
Neurocognitive models propose a specialized neural system for processing threat-related information, in which the amygdala
plays a key role in the analysis of threat cues. fMRI research indicates that the amygdala is sensitive to coarse visual threat
relevant information—for example, low spatial frequency (LSF) fearful faces. However, fMRI cannot determine the temporal or
spectral characteristics of neural responses. Consequently, we used magnetoencephalography to explore spatiotemporal patterns
of activity in the amygdala and cortical regions with blurry (LSF) and normal angry, fearful, and neutral faces. Results demonstrated
differences in amygdala activity between LSF threat-related and LSF neutral faces (50–250 msec after face onset). These differences
were evident in the theta range (4–8 Hz) and were accompanied by power changes within visual and frontal regions. Our results
support the view that the amygdala is involved in the early processing of coarse threat related information and that theta
is important in integrating activity within emotion-processing networks. 相似文献
103.
Alex S. Cohen Kyle S. Minor Gina M. Najolia S. Lee Hong 《Behavior research methods》2009,41(1):204-212
Despite dramatic advances in the sophistication of tools for measuring prosodic and content channels of expression from natural
speech, methodological issues have limited the simultaneous measurement of those channels for laboratory research. This is
particularly unfortunate, considering the importance of emotional expression in daily living and how it can be disrupted in
many psychological disorders (e.g., schizophrenia). The present study examined the Computerized assessment of Affect from
Natural Speech (CANS), a laboratory-based procedure that was designed to measure both lexical and prosodic expression from
natural speech across a range of evocative conditions. The verbal responses of 38 male and 31 female subjects were digitally
recorded as they reacted to separate pleasant, unpleasant, and neutral stimuli. Lexical and prosodic expression variables
significantly changed across these conditions, providing support for using the CANS in further laboratory research. The implications
for understanding the interface between lexical and prosodic expressions are also discussed. 相似文献
104.
Edward J Daly III Nikki J Wells Michelle S Swanger-Gagné James E Carr Gina M Kunz Ashley M Taylor 《Journal of applied behavior analysis》2009,42(3):563-574
The current study examined the accuracy of the multiple-stimulus without replacement (MSWO) preference assessment for identifying preferred common classroom activities as reinforcers with children with behavioral disorders. The accuracy of predictions from the MSWO regarding high, medium, and low stimulus preference was tested by providing contingent access to activities for completing math problems within an independent seatwork format. Overall, there was an interaction effect between preference ranking (high, medium, or low) and number of problems completed. The results confirm and extend previous findings regarding the accuracy of predictions with the MSWO. The findings also reveal, however, some individual differences that may account for instances in which student behavior did not conform to predictions of stimulus preference assessments. 相似文献
105.
106.
Terrorism provides a unique context for examining innovation, as the generation of novel, effective, and complex ideas are essential for survival in destructive and malevolent groups. Despite this, innovation remains an underdeveloped concept in terrorism research, at least from the creativity scholars. One reason for this is the limited empirical data about this phenomenon, making it unclear which tenets of creativity research hold versus which do not translate in the domain of terrorism. This two-part study explores this rich domain by examining the dimensions of innovation in a robust sample of terrorist attacks. Findings indicated that three dimensions of innovation (i.e., novelty, relevance, and elegance) emerged from the attack data and that these dimensions were related to different attack characteristics. This article expands our understanding of terrorist innovation by drawing from established theory and methods from creativity research and highlights their manifestations in this understudied domain. 相似文献
107.
RJEAN TESSIER CHRISTIANE PICH George M. Tarabulsy Gina Muckle 《Journal of applied social psychology》1992,22(17):1319-1339
The purpose of this study is to identify, through a retrospective methodology, stressor and coping resource variables which are involved in mothers' experience of stress one month after the birth of a first child. The variables were identified on the basis of previous work in this field, and were categorized as stressor or coping resource variables according to the writings of authors in the larger domain of stress and coping. The influence of interactive and additive combinations of stressors and coping resources, as described by Wheaton (1985), were also examined in a multiple regression model. A five-variable model, accounting for 58.74% of the variance of a measure of the experience of stress, was obtained. Discussion focuses around the predictive possibilities of such a model, the impact of coping resources, and on the potential for utilizing this model for describing the process of adaptation following this event over time. 相似文献
108.
109.
The claim that unattended items in dichotic listening are categorized (Smith & Groen, 1974) was examined in three experiments using dichotic presentation and probe reaction time. Negative probe words from the unattended list were more difficult to reject when the dichotic lists shared a semantic category than when they differed in category, whether or not the attended list was precued, thereby replicating and extending Smith and Groen’s findings. The difficulty with intralist probes following dichotic lists of a homogeneous category was found to be a special case of the probe similarity effect, since extralist probes of the same category as the attended input were rejected more slowly (and with more errors) than different category probes. The effects of category homogeneity were evident on the attended, but not on the unattended, inputs (Experiment 2). The third experiment compared focused and divided attention with dichotic lists of unrelated items. Phonemically similar probes were more difficult to reject when related to items on the attended channel in the focused condition than either channel in divided attention, and easiest to reject when similar to an unattended item. Linear regression confirmed that the unattended input was processed only at a precategorical (acoustic) level. 相似文献