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971.
972.
Running on empty: neural signals for self-control failure 总被引:1,自引:0,他引:1
Past research shows that self-control is limited and becomes depleted after initial exertions. This study examined the neural processes underlying self-control failure by testing whether controlled, effortful behavior impairs subsequent attempts at control by depleting the neural system associated with conflict monitoring. Subjects either watched an emotional movie normally or tried to suppress their emotions while watching the movie; they then completed an ostensibly unrelated Stroop task while electroencephalographic activity was recorded. The error-related negativity (ERN)--a waveform associated with activity in the anterior cingulate--was measured to determine whether prior regulatory exertion constrained the conflict-monitoring system. Compared with subjects in the control condition, those who suppressed their emotions performed worse on the Stroop task, and this deficit was mediated by weaker ERN signals. These results offer a neural account for the self-regulatory-strength model and demonstrate the utility of the social neuroscience approach. 相似文献
973.
974.
Research indicates that perceivers regulate information gain from their observation of ongoing behavior by varying the number
and kind of actions they identify as meaningful. Although numerous factors have been shown to induce variation in this behavior-perception
process, it is not currently known whether observers must consciously and intentionally initiate these changes. To address
this question, different observational goals (impression formation or memorization) were nonconsciously primed in participants
who then viewed and segmented a behavior sequence into meaningful actions. Although participants were unaware of its effects,
the priming manipulation led to quantitative and qualitative shifts in their perception of the behavior that were similar
to those found in a previous study in which observational goals were manipulated via explicit instructions. Importantly, these
shifts in perception, in turn, influenced evaluations of the observed actor and memory for her behavior. We conclude that
an act of will is not required for adjustments in behavior perception to be initiated, and, furthermore, that a full understanding
of social judgment cannot be achieved without examination of the behavior-perception process.
相似文献
G. Daniel LassiterEmail: |
975.
The revelation effect refers to the finding of an increased propensity to classify recognition test probes as old when they
are preceded by a problem solving task. Recent research indicates that revelation effects are dissociable based on whether
the revelation task involves an item that is the same as or different than the subsequently presented recognition probe. Using
a two-alternative forced-choice design, we found a revelation effect for both words (Experiment 1) and nonwords (Experiment
2) in the condition where the revealed item was the same as the target item (same revelation condition), but no effect when
the revealed item was different than either test alternative (different revelation condition). These results were replicated
using a mixed list design containing both words and nonwords (Experiment 3). Results support Verde and Rotello’s (2004) two-factor
account of the revelation effect, which proposes that changes in memory sensitivity underlie revelation effects in the same
revelation condition, and that changes in the decision criterion are responsible in the different revelation condition. 相似文献
976.
Previous research in the dorsal CA1 and dorsal CA3 subregions of the hippocampus has been shown to play an important role in mediating temporal order memory for spatial location information. What is not known is whether the dorsal CA3 and dorsal CA1 subregions of the hippocampus are also involved in temporal order for visual object information. Rats with dorsal CA1, dorsal CA3 or control lesions were tested in a temporal order task for visual objects using an exploratory paradigm. The results indicated that the controls and the dorsal CA3 lesioned rats preferred the first rather then the last object they had explored previously, indicating good memory for temporal order of object presentation. In contrast, rats with dorsal CA1 lesions displayed a profound deficit in remembering the order of the visual object presentations in that they preferred the last object rather than the first. All three groups of rats preferred a novel object compared to a previously explored object suggesting normal detection of visual object novelty. The results suggest that only the dorsal CA1, but not dorsal CA3, region is critical for processing temporal information for visual objects without affecting the detection of new visual objects. 相似文献
977.
Ramirez JJ Campbell D Poulton W Barton C Swails J Geghman K Courchesne SL Wentworth S 《Neurobiology of learning and memory》2007,87(2):264-268
Entorhinal cortex lesions induce significant reorganization of several homotypic and heterotypic inputs to the hippocampus. This investigation determined whether surviving heterotypic inputs after bilateral entorhinal lesions would support the acquisition of a learned alternation task. Rats with entorhinal lesions or sham operations were trained to acquire a spatial alternation task. Although the sham-operated rats acquired the task within about 3 weeks postsurgery, rats with bilateral entorhinal lesions failed to learn the task after 12 consecutive weeks of training despite heterotypic sprouting of the cholinergic septodentate pathway and the expansion of the commissural/associational fiber plexus within the dentate gyrus. Thus, heterotypic sprouting failed to ameliorate significantly the effects of bilateral entorhinal lesions. Rather, entorhinal lesions produced a persistent impairment of spatial memory, characterized by a mixture of random error production and perseverative responding. 相似文献
978.
Three patients were seen in an outpatient setting with work difficulties involving disorganization and task completion. They were evaluated and found to have significant symptoms of both attention-deficit/hyperactivity disorder, inattentive subtype and obsessive-compulsive personality disorder and were then treated with a creative combined behavioral and medication treatment, which emphasized the use of external aides (eg, paraprofessionals). Significant symptom reduction was observed as a result of this combined intervention. 相似文献
979.
Jennifer Tichon 《Cyberpsychology & behavior》2007,10(2):286-289
Across a variety of operational environments, virtual reality (VR) is being increasingly used as a means of simulating hazardous work conditions in order to allow trainees to practice advanced cognitive skills such as problem-solving and decision-making. Replicating dangerous conditions particularly involving heavy machinery in the real world can be dangerous and costly. The use of VR is therefore appealing across many industries such as aviation, mining, and rail. However, while the number of training prototypes increase less focus is being given to appropriate evaluation of the training provided via this technology. Increasing skills acquisition and performance does not depend solely on the appropriate design of simulation training. Of equal importance are strong performance measures which can ultimately feedback on the success or otherwise of training and highlight any deficits to guide ongoing improvements. To ensure cognitive skills acquired in a virtual training environment (VTE) are transferable to the real world, training objectives need to be tied directly to realistic scenario events which in turn are directly linked to measures of specific required behaviors. 相似文献
980.
Lucette Ouschan Jennifer M. Boldero Yoshihisa Kashima Ryuutaro Wakimoto Emiko S. Kashima 《Asian Journal of Social Psychology》2007,10(4):243-257
Regulatory focus theory proposes that people can have a promotion or a prevention focus when pursuing goals and choosing strategies. The Regulatory Focus Strategies Scale (RFSS), a scale that assesses the endorsement of promotion and prevention strategies for goal pursuit, is developed and validated in three studies. Exploratory and confirmatory factor analyses in Australia and Japan showed that promotion- and prevention-focused strategic endorsement formed two largely uncorrelated factors. The RFSS exhibits adequate reliability, and discriminant and convergent validity. A cross-cultural comparison showed that Australians were more promotion- but less prevention-focused than Japanese students. The RFSS provides an additional measure that is useful in future research on self-regulatory strategies. 相似文献