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91.
Grigori Mints 《Studia Logica》2006,82(1):121-132
S4C is a logic of continuous transformations of a topological space. Cut elimination for it requires new kind of rules and
new kinds of reductions 相似文献
92.
The “top-down” and “bottom-up” approaches have been thought to exhaust the possibilities for doing cognitive neuroscience. We argue that neither approach is likely to succeed in providing a theory that enables us to understand how cognition is achieved in biological creatures like ourselves. We consider a promising third way of doing cognitive neuroscience, what might be called the “neural dynamic systems” approach, that construes cognitive neuroscience as an autonomous explanatory endeavor, aiming to characterize in its own terms the states and processes responsible for brain-based cognition. We sketch the basic motivation for the approach, describe a particular version of the approach, so-called ‘Dynamic Causal Modeling’ (DCM), and consider a concrete example of DCM. This third way, we argue, has the potential to avoid the problems that afflict the other two approaches. 相似文献
93.
94.
Jungmeen Kim John R. Nesselroade Michael E. McCullough 《Journal of Adult Development》2009,16(2):87-100
Intraindividual patterns of time-lagged relationships among self-reports of worldviews/religious beliefs, self-concept, and
physical and psychological well-being were investigated. Participants were older adults (mean age = 77 years) who were measured
weekly covering a total of 25 weeks. Dynamic Factor Models were fitted to multivariate repeated measures data pooled over
subsets of participants. The results showed significant time-lagged cross-factor relationships suggesting that worldviews/religious
beliefs had a significant direct effect on self-concept and physical health over 2 weeks. For each factor series, there were
substantial autoregressive effects indicating persisting effects of factors on themselves over 1 or 2 weeks. A link between
worldviews/religious beliefs and physical health was found in the time-lagged structure of within-person variability. The
findings underscore the need to study both intraindividual change and interindividual differences in intraindividual variability
to obtain a better understanding of behavior and behavioral development.
相似文献
Jungmeen KimEmail: |
95.
Extending the idiom of dynamic logic we outline a deontic logic in which deontic operators operate on terms rather than on formulæ. In a second step we distinguish between what we call real and deontic actions. 相似文献
96.
In this paper we present a new model for invariant object categorization and recognition. It is based on explicit multi-scale
features: lines, edges and keypoints are extracted from responses of simple, complex and end-stopped cells in cortical area
V1, and keypoints are used to construct saliency maps for Focus-of-Attention. The model is a functional but dichotomous one,
because keypoints are employed to model the “where” data stream, with dynamic routing of features from V1 to higher areas
to obtain translation, rotation and size invariance, whereas lines and edges are employed in the “what” stream for object
categorization and recognition. Furthermore, both the “where” and “what” pathways are dynamic in that information at coarse
scales is employed first, after which information at progressively finer scales is added in order to refine the processes,
i.e., both the dynamic feature routing and the categorization level. The construction of group and object templates, which
are thought to be available in the prefrontal cortex with “what” and “where” components in PF46d and PF46v, is also illustrated.
The model was tested in the framework of an integrated and biologically plausible architecture.
相似文献
J. M. Hans du BufEmail: |
97.
This study investigated the role of executive attention control in modulating selective processing of emotional information in anxiety. It was hypothesized that the combination of high anxiety and poor attention control would be associated with greater difficulty in ignoring task-irrelevant threat-related information. The study included both faces and words as stimuli. Cognitive interference effects were assessed using two emotional Stroop tasks: one with angry, fearful, happy and neutral faces, and one with threat-related, positive, and neutral words. An objective measure of attention control was obtained from the Attention network task. There were four participant groups with high/low trait anxiety and high/low attention control. Results indicated that the combination of high anxiety and poor attention control was associated with greater cognitive interference by emotional faces (including angry faces), compared to neutral faces. This interference effect was not evident in participants with high anxiety and high attentional control, or in low-anxious individuals. There was no evidence of associations between anxiety, attention control, and the interference effect of emotional words. Results indicate that high anxiety and poor attention control together predict enhanced processing of emotionally salient information, such as angry facial expressions. Implications for models of emotion processing are discussed. 相似文献
98.
Historically, it was believed the perceptual mechanisms involved in individuating faces developed only very slowly over the course of childhood, and that adult levels of expertise were not reached until well into adolescence. Over the last 10 years, there has been some erosion of this view by demonstrations that all adult-like behavioural properties are qualitatively present in young children and infants. Determining the age of maturity, however, requires quantitative comparison across age groups, a task made difficult by the need to disentangle development in face perception from development in all the other cognitive factors that affect task performance. Here, we argue that full quantitative maturity is reached early, by 5-7 years at the latest and possibly earlier. This is based on a comprehensive literature review of results in the 5-years-to-adult age range, with particular focus on the results of the few previous studies that are methodologically suitable for quantitative comparison of face effects across age, plus three new experiments testing development of holistic/configural processing (faces versus objects, disproportionate inversion effect), ability to encode novel faces (assessed via implicit memory) and face-space (own-age bias). 相似文献
99.
This research examines decisions from experience in restless bandit problems. Two experiments revealed four main effects. (1) Risk neutrality: the typical participant did not learn to become risk averse, a contradiction of the hot stove effect. (2) Sensitivity to the transition probabilities that govern the Markov process. (3) Positive recency: the probability of a risky choice being repeated was higher after a win than after a loss. (4) Inertia: the probability of a risky choice being repeated following a loss was higher than the probability of a risky choice after a safe choice. These results can be described with a simple contingent sampler model, which assumes that choices are made based on small samples of experiences contingent on the current state. 相似文献
100.
Fernando Raymundo Velázquez-Quesada 《Synthese》2009,169(2):283-300
We look at two fundamental logical processes, often intertwined in planning and problem solving: inference and update. Inference
is an internal process with which we uncover what is implicit in the information we already have. Update, on the other hand,
is produced by external communication, usually in the form of announcements and in general in the form of observations, giving
us information that might not have been available (even implicitly) before. Both processes have received attention from the
logic community, usually separately. In this work, we develop a logical language that allows us to describe them together.
We present syntax, semantics and a complete axiom system; we discuss similarities and differences with other approaches and
mention how the work can be extended. 相似文献