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Cognitive control processes refer to our ability to coordinate thoughts and actions in accordance with internal goals. In the fronto-lateral cortex such processes have been primarily related to mid-dorsolateral prefrontal cortex (mid-DLPFC). However, recent brain-imaging and meta-analytic studies suggest that a region located more posterior in the fronto-lateral cortex plays a pivotal role in cognitive control as well. This region has been termed the inferior frontal junction area and can be functionally and structurally distinguished from mid-DLPFC. 相似文献
464.
Annemiek Karreman Marcel A.L.M. van Assen Marrie H.J. Bekker 《Personality and individual differences》2013
The aim was to examine to what extent emotional intensity accounted for associations between the Big Five personality dimensions and depressive symptoms. Study 1 tested the model cross-sectionally, using survey data of 266 Dutch social science students. Study 2 experimentally examined how personality dimensions were related to emotional reactivity after exposure to various emotional stimuli. Dutch psychology students (N = 130) reported on their personality and viewed an amusing or sad film clip, after which the change in intensity of experienced positive and negative emotions was assessed. Individuals scoring higher on neuroticism generally experienced more intense negative emotions, through which they experienced a higher level of depressive symptoms. Individuals who were more agreeable experienced a lower level of depressive symptoms indirectly through higher general intensity of positive emotions. More agreeable individuals showed stronger increase in negative emotions and stronger decrease in positive emotions, though after exposure to the sad stimulus only. Although replication is needed, our results offer empirical support for a more taylor-made approach in decreasing nonclinical depressive symptoms taking into account both personality characteristics and emotion regulation. 相似文献
465.
It is well established that humans can recognize high-level aspects from point-light biological motion, such as gender and mood. If the task is to judge the manipulated weight we expected that sensorimotor regions should be recruited in the brain. Moreover, we have recently shown that chronic pain in a limb that is involved in the presented movement disturbs the weight judgment. We therefore hypothesized that some cortical regions usually activated during the processing of pain will also be activated while viewing point-light biological motion with the instruction to judge the manipulated weights. We investigated point-light biological motion of two types of movements performed with different weights in a blocked fMRI experiment in healthy subjects. In line with our a priori hypothesis, we found strong activity in the regions known as the neuromatrix of pain, such as the anterior cingulate (ACC), insula, as well as primary and secondary somatosensory regions. We also found activation in the occipital and temporal regions that are typical for biological motion, as well as regions in the cerebellum and prefrontal cortex. The activation of the somatosensory regions probably serves the judgment of the biological motion stimuli. Activation of the anterior cingulate and the insula might be explained by their role in the integration of behaviorally relevant information. Alternatively, these structures are known to be involved in the processing of nociceptive information and pain. So it seems possible that the interference between judgment of weights and perception of pain in chronic pain patients occurs in the somatosensory areas, anterior cingulate and/or insula. This finding provides important information as to the underlying mechanisms used for the weight judgment task, but also why chronic pain interferes with this task. 相似文献
466.
In eye movement desensitization and reprocessing (EMDR), a treatment for post-traumatic stress disorder (PTSD), patients make eye movements (EM) during trauma recall. Earlier experimental studies found that EM during recall reduces memory vividness during future recalls, and this was taken as laboratory support for the underlying mechanism of EMDR. However, reduced vividness was assessed with self-reports that may be affected by demand characteristics. We tested whether recall+EM also reduces memory vividness on a behavioural reaction time (RT) task. Undergraduates (N=32) encoded two pictures, recalled them, and rated their vividness. In the EM group, one of the pictures was recalled again while making EM. In the no-EM group one of the pictures was recalled without EM. Then fragments from both the recalled and non-recalled pictures, and new fragments were presented and participants rated whether these were (or were not) seen before. Both pictures were rated again for vividness. In the EM group, self-rated vividness of the recalled+EM picture decreased, relative to the non-recalled picture. In the no-EM group there was no difference between the recalled versus non-recalled picture. The RT task showed the same pattern. Reduction of memory vividness due to recall+EM is also evident from non-self-report data. 相似文献
467.
Marcel A. van den Hout Marloes B. Eidhof Jesse Verboom Marianne Littel Iris M. Engelhard 《Cognition & emotion》2013,27(4):717-727
Memories that are recalled while working memory (WM) is taxed, e.g., by making eye movements (EM), become blurred during the recall + EM and later recall, without EM. This may help to explain the effects of Eye Movement and Desensitisation and Reprocessing (EMDR) in the treatment of post-traumatic stress disorder (PTSD) in which patients make EM during trauma recall. Earlier experimental studies on recall + EM have focused on emotional memories. WM theory suggests that recall + EM is superior to recall only but is silent about effects of memory emotionality. Based on the emotion and memory literature, we examined whether recall + EM has superior effects in blurring emotional memories relative to neutral memories. Healthy volunteers recalled negative or neutral memories, matched for vividness, while visually tracking a dot that moved horizontally (“recall + EM”) or remained stationary (“recall only”). Compared to a pre-test, a post-test (without concentrating on the dot) replicated earlier findings: negative memories are rated as less vivid after “recall + EM” but not after “recall only”. This was not found for neutral memories. Emotional memories are more taxing than neutral memories, which may explain the findings. Alternatively, transient arousal induced by recall of aversive memories may promote reconsolidation of the blurred memory image that is provoked by EM. 相似文献
468.
Elisa Filevich Patricia Vanneste Marcel Brass Wim Fias Patrick Haggard Simone Kühn 《Consciousness and cognition》2013,22(4):1271-1284
The subjective feeling of free choice is an important feature of human experience. Experimental tasks have typically studied free choice by contrasting free and instructed selection of response alternatives. These tasks have been criticised, and it remains unclear how they relate to the subjective feeling of freely choosing. We replicated previous findings of the fMRI correlates of free choice, defined objectively. We introduced a novel task in which participants could experience and report a graded sense of free choice. BOLD responses for conditions subjectively experienced as free identified a postcentral area distinct from the areas typically considered to be involved in free action. Thus, the brain correlates of subjective feeling of free action were not directly related to any established brain correlates of objectively-defined free action. Our results call into question traditional assumptions about the relation between subjective experience of choosing and activity in the brain’s so-called voluntary motor areas. 相似文献
469.
Jessica N. Galang Matthew Tyler Boden Marcel O. Bonn-Miller 《Anxiety, stress, and coping》2013,26(2):192-204
Background and Objectives: Prior research suggests that difficulties in emotion regulation are associated with elevations in panic symptoms. The present study aimed to extend this work by prospectively examining the relation between difficulties in emotion regulation and panic symptoms over the course of a self-guided cannabis cessation attempt. Design and Method: One hundred and four cannabis-dependent military veterans participated in the study. Difficulties in emotion regulation and panic symptoms were assessed at baseline and at each week during a four-week cessation attempt for a total of five time-points. Results: Fewer difficulties in emotion regulation were associated with a greater reduction in panic symptoms during the self-guided cannabis cessation period. Results remained significant after statistically adjusting for mean substance use (i.e., cannabis, alcohol, and tobacco) during the study period. Conclusions: Results are discussed in terms of integrating adaptive emotion regulation skills training into existing evidence-based treatments for cannabis dependence. 相似文献
470.
Harmen van Wijnen Marcel Barnard 《International Journal for the Study of the Christian Church》2013,13(3):208-221
The relationship between adolescents and institutional manifestations of church is often problematic. Nevertheless, adolescents still have a need to talk about and to experience faith together with other adolescents. When institutional activities are not available or do not satisfy the needs of the adolescents they sometimes create their own small groups and (informal) meetings to affirm their faith integrated in their (social) lives. Sociological studies also show the tendency to create their own small groups (tribes) besides existing groups of institutional organisations. In this article the question posed is how this more tribal way of being together can be seen as church. Is a (new) form of ecclesiology possible in a world of small groups, networks, social media? This article describes ecclesiological capabilities in a complex sociological environment for adolescents. 相似文献