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141.
142.
Brett M Gibson Edward A Wasserman Lloyd Frei Keith Miller 《Behavior research methods, instruments & computers》2004,36(2):355-362
We report the construction of a new operant chamber that incorporates modern computer, touchscreen, and display technologies. An LCD display was housed in the front wall of a lightweight Plexiglas chamber. An Apple eMac computer was used to present visual stimuli on the monitor and to control other chamber events. Responses to the stimuli were recorded using a transparent resistive-type touchscreen that overlaid the monitor. The resulting system is simple and inexpensive to construct but powerful and flexible enough to explore a broad range of issues in animal learning and behavior. 相似文献
143.
Recent research has examined how people predict unobserved features of an object when its category membership is ambiguous.
The debate has focused on whether predictions are based solely on information from the most likely category, or whether information
from other possible categories is also used. In the present experiment, we compared these category-based approaches with feature
conjunction reasoning, where predictions are based on a comparison among exemplars (rather than categories) that share features
with a target object. Reasoning strategies were assessed by examining patterns of feature prediction and by using an eye gaze
measure of attention during induction. The main findings were (1) the majority of participants used feature conjunction rather
than categorical strategies, (2) people predominantly gazed at the exemplars that were most similar to the target object,
and (3) although people gazed most at the most probable category to which an object could belong, they also attended to other
plausible category alternatives during induction. These findings question the extent to which category-based reasoning is
used for induction when category membership is uncertain. 相似文献
144.
145.
Rhodes R Azzouni J Baumrin SB Benkov K Blaser MJ Brenner B Dauben JW Earle WJ Frank L Gligorov N Goldfarb J Hirschhorn K Hirschhorn R Holzman I Indyk D Jabs EW Lackey DP Moros DA Philpott S Rhodes ME Richardson LD Sacks HS Schwab A Sperling R Trusko B Zweig A 《The American journal of bioethics : AJOB》2011,11(11):1-7
146.
Roger Levy 《心理与行为研究》2011,9(1):53-64
One nearly ubiquitous assumption in models of linguistic comprehension and of eye movement control in reading alike is of partial modularization between word-level and sentence-level processing: that the outcome of word recognition, and thus the input to sentence-level comprehension, is a categorial representation. Yet such a partial modularization throws away residual uncertainty regarding word identity that might potentially be of value to the comprehender further downstream in the sentence. Here I describe a line of research combining computational modeling with experimental eye-tracking work to explore the consequences of removing this partial modularity assumption. 相似文献
147.
148.
Three studies contrasting Indian and American negotiators tested hypotheses derived from theory proposing why there are cultural differences in trust and how cultural differences in trust influence negotiation strategy. Study 1 (a survey) documented that Indian negotiators trust their counterparts less than American negotiators. Study 2 (a negotiation simulation) linked American and Indian negotiators' self-reported trust and strategy to their insight and joint gains. Study 3 replicated and extended Study 2 using independently coded negotiation strategy data, allowing for stronger causal inference. Overall, the strategy associated with Indian negotiators' reluctance to extend interpersonal (as opposed to institutional) trust produced relatively poor outcomes. Our data support an expanded theoretical model of negotiation, linking culture to trust, strategies, and outcomes. 相似文献
149.
Levy DL Bowman EA Abel L Krastoshevsky O Krause V Mendell NR 《Brain and cognition》2008,68(3):462-475
The “co-familiality” criterion for an endophenotype has two requirements: (1) clinically unaffected relatives as a group should show both a shift in mean performance and an increase in variance compared with controls; (2) performance scores should be heritable. Performance on the antisaccade task is one of several candidate endophenotypes for schizophrenia. In this paper we examine whether the various measures of performance on the standard version of the antisaccade task meet the co-familiality criterion for an endophenotype. The three measures of performance—reflexive saccade errors, latency of correct antisaccades, and gain—show a wide range of effect sizes and variance ratios as well as evidence of significant or near significant heterogeneity. The estimated mean effect sizes [Cohen’s d: error rate: 0.34 (SD: 0.29); latency: 0.33 (SD: 0.30); gain: 0.54 (SD: 0.38)] are significantly greater than 0, but the magnitude of the departures from 0 is relatively small, corresponding to modest effect sizes. The width of the 95% confidence intervals for the estimated effect sizes (error rate: 0.2–0.49; latency: 0.17–0.50; gain: 0.23–0.85) and the coefficients of variation in effect sizes (error rate: 85.3%; latency: 90.9%; gain: 68.4%) reflect heterogeneity in effect sizes. The effect sizes for error rate showed statistically significant heterogeneity and those for latency (P = .07) and gain (P = .09) showed a trend toward heterogeneity. These results indicate that the effect sizes are not consistent with a single mean and that the average effect size may be a biased estimate of the magnitude of differences in performance between relatives of schizophrenics and controls. Relatives of schizophrenics show a small but significant increase in variance in error rate, but the confidence interval is broad, perhaps reflecting the heterogeneity in effect size. The variance ratios for latency and gain did not differ in relatives of schizophrenics and controls. Performance, as measured by error rate, is moderately heritable. The data do not provide compelling support for a consistent shift in mean or variance in relatives of schizophrenia patients compared with nonpsychiatric controls, both of which are required for a major gene involved in co-familial transmission. This set of findings suggests that although intra-familial resemblance in antisaccade performance is due in part to genetic factors, it may not be related to a schizophrenia genotype. Based on the current literature, it would be premature to conclude that any of the measures of antisaccade performance unambiguously meets the co-familiality criterion for an endophenotype. 相似文献
150.
Levy DA Rabinyan E Vakil E 《Quarterly journal of experimental psychology (2006)》2008,61(11):1620-1628
Context effects on recognition memory provide an important indirect assay of associative learning and source memory. Neuropsychological studies have indicated that such context effects may obtain even if the contexts themselves are not remembered--for example, in individuals impaired on direct tests of memory for contextual information. In contrast, a recent study indicated that the effects of temporal context reinstatement on visual recognition obtain only when the contextual information itself was explicitly recollected. Here we report that the effects of reinstatement of spatial-simultaneous context on visual object recognition memory obtain irrespective of whether those context stimuli are explicitly recognized. We suggest that spatial-simultaneous context effects might be based on ensemble unitization of target and context stimuli at encoding, whereas temporal context effects may require recollective processes. 相似文献