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111.
Current theoretical conceptualizations of visual persistence fail to address the issue of its functional role. Based on extant experimental data we tentatively identify two general types of visual persistence: one resides in activity along the afferent visual pathway and is retinotopically organized; the other resides at central levels and is spatiotopically organized. Moreover, whereas the former afferent persistence is eliminated via saccadic suppression mechanisms in order to separate successive, retinotopic frames of pattern information, the latter, central one, in contrast, is generated and enhanced via extraretinal signals accompanying saccades in order to preserve phenomenal continuity of a stable spatiotopic representation of the environment from one fixation to the next. 相似文献
112.
Our main goal is to investigate whether the infinitary rules for the quantifiers endorsed by Elia Zardini in a recent paper are plausible. First, we will argue that they are problematic in several ways, especially due to their infinitary features. Secondly, we will show that even if these worries are somehow dealt with, there is another serious issue with them. They produce a truth-theoretic paradox that does not involve the structural rules of contraction. 相似文献
113.
Eric-Jan Wagenmakers Jonathon Love Maarten Marsman Tahira Jamil Alexander Ly Josine Verhagen Ravi Selker Quentin F. Gronau Damian Dropmann Bruno Boutin Frans Meerhoff Patrick Knight Akash Raj Erik-Jan van Kesteren Johnny van Doorn Martin Šmíra Sacha Epskamp Alexander Etz Dora Matzke Tim de Jong Don van den Bergh Alexandra Sarafoglou Helen Steingroever Koen Derks Jeffrey N. Rouder Richard D. Morey 《Psychonomic bulletin & review》2018,25(1):58-76
Bayesian hypothesis testing presents an attractive alternative to p value hypothesis testing. Part I of this series outlined several advantages of Bayesian hypothesis testing, including the ability to quantify evidence and the ability to monitor and update this evidence as data come in, without the need to know the intention with which the data were collected. Despite these and other practical advantages, Bayesian hypothesis tests are still reported relatively rarely. An important impediment to the widespread adoption of Bayesian tests is arguably the lack of user-friendly software for the run-of-the-mill statistical problems that confront psychologists for the analysis of almost every experiment: the t-test, ANOVA, correlation, regression, and contingency tables. In Part II of this series we introduce JASP (http://www.jasp-stats.org), an open-source, cross-platform, user-friendly graphical software package that allows users to carry out Bayesian hypothesis tests for standard statistical problems. JASP is based in part on the Bayesian analyses implemented in Morey and Rouder’s BayesFactor package for R. Armed with JASP, the practical advantages of Bayesian hypothesis testing are only a mouse click away. 相似文献
114.
Uros Marusic Bruno Giordani Scott D. Moffat Mojca Petrič Petra Dolenc Rado Pišot 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2018,25(1):49-69
The hippocampus is closely tied to spatial navigation, a central component in cognitive functioning, and critically involved in age-associated cognitive decline and dementia. This study evaluated a novel, cognitive computerized spatial navigation training (CSNT) program targeting the hippocampus, with expectation of mitigating possible cognitive decline with bed rest (BR). During a 14-day BR study with 16 healthy, older men (mean age = 60 ± 3, range = 55–65 years), half received CSNT for 12 days in 50-min sessions and half were controls (watching documentaries). This design uniquely controlled diet, sleep, and other personal and environmental activities. Although there were no cognitive declines in controls post-BR, CSNT participants demonstrated significant increases in executive/attention ability and processing speed, and continued spatial navigation testing showed improvement to 400 days post-BR. This intervention may prove useful to mitigate cognitive declines known to occur in long periods of immobilization and could have broader implications in protecting against age-related cognitive decline. 相似文献
115.
Research teams have made considerable progress in treating absolute uterine factor infertility through uterus transplantation, though studies have differed on the choice of either deceased or living donors. While researchers continue to analyze the medical feasibility of both approaches, little attention has been paid to the ethics of using deceased versus living donors as well as the protections that must be in place for each. Both types of uterus donation also pose unique regulatory challenges, including how to allocate donated organs; whether the donor / donor's family has any rights to the uterus and resulting child; how to manage contact between the donor / donor's family, recipient, and resulting child; and how to track outcomes moving forward. 相似文献
116.
117.
We recorded the pupil diameters of participants performing the words’ color-naming Stroop task (i.e., naming the color of
a word that names a color). Non-color words were used as baseline to firmly establish the effects of semantic relatedness
induced by color word distractors. We replicated the classic Stroop effects of color congruency and color incongruency with
pupillary diameter recordings: relative to non-color words, pupil diameters increased for color distractors that differed
from color responses, while they reduced for color distractors that were identical to color responses. Analyses of the time
courses of pupil responses revealed further differences between color-congruent and color-incongruent distractors, with the
latter inducing a steep increase of pupil size and the former a relatively lower increase. Consistent with previous findings
that have demonstrated that pupil size increases as task demands rise, the present results indicate that pupillometry is a
robust measure of Stroop interference, and it represents a valuable addition to the cognitive scientist’s toolbox. 相似文献
118.
Previous studies have shown that acquired prosopagnosia is characterized by impairment at holistic/configural processing. However, this view is essentially supported by studies performed with patients whose face recognition difficulties are part of a more general visual (integrative) agnosia. Here, we tested the patient PS, a case of acquired prosopagnosia whose face‐specific recognition difficulties have been related to the inability to process individual faces holistically (absence of inversion, composite, and whole–part effects with faces). Here, we show that in contrast to this impairment, the patient presents with an entirely normal response profile in a Navon hierarchical letter task: she was as fast as normal controls, faster to identify global than local letters, and her sensitivity to global interference during identification of local letters was at least as large as normal observers. These observations indicate that holistic processing as measured with global/local interference in the Navon paradigm is functionally distinct from the ability to perceive an individual face holistically. 相似文献
119.
Repp BH 《Psychological research》2000,63(2):106-128
It is sometimes assumed that limits of temporal discrimination established in psychophysical tasks constrain the timing information
available for the control of action. Results from the five perceptual-motor synchronization experiments presented here argue
against this assumption. Experiment 1 demonstrates that subliminal (0.8–2%) local changes in interval duration in an otherwise
isochronous auditory sequence are rapidly compensated for in the timing of synchronized finger tapping. If this compensation
is based on perception of the highly variable synchronization error (SE) rather than of the local change in stimulus period,
then it could be based solely on SEs that exceed the temporal order threshold. However, that hypothesis is ruled out by additional
analyses of Exp. 1 and the results of Exp. 2, a combined synchronization and temporal order judgment task. Experiments 3–5
further show that three factors that affect the detectability of local deviations from stimulus isochrony do not inhibit effective
compensation for such deviations in synchronized tapping. Experiment 5, a combined synchronization and detection task, shows
directly that compensation for timing perturbations does not depend on explicit detection. Overall, the results suggest that
the automatic processes involved in the temporal control of action have access to more accurate timing information than do
the conscious decision processes of auditory temporal judgment.
Received: 19 November 1998 / Accepted: 18 March 1999 相似文献
120.