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911.
912.
Andriy Myachykov Ashley J. Chapman Jack Beal Christoph Scheepers 《British journal of psychology (London, England : 1953)》2020,111(2):357-368
Existing random number generation studies demonstrate the presence of an embodied attentional bias in spontaneous number production corresponding to the horizontal Mental Number Line: Larger numbers are produced on right-hand turns and smaller numbers on left-hand turns (Loetscher et al.,2008, Curr. Biol., 18, R60). Furthermore, other concepts were also shown to rely on horizontal attentional displacement (Di Bono and Zorzi, 2013, Quart. J. Exp. Psychol., 66, 2348). In two experiments, we used a novel random word generation paradigm combined with two different ways to orient attention in horizontal space: Participants randomly generated words on left and right head turns (Experiment 1) or following left and right key presses (Experiment 2). In both studies, syllabically longer words were generated on right-hand head turns and following right key strokes. Importantly, variables related to semantic magnitude or cardinality (whether the generated words were plural-marked, referred to uncountable concepts, or were associated with largeness) were not affected by lateral manipulations. We discuss our data in terms of the ATOM (Walsh, 2015, The Oxford handbook of numerical cognition, 552) which suggests a general magnitude mechanism shared by different conceptual domains. 相似文献
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915.
Although Age × Treatment interactions have been widely viewed as key results in theories of memory development, most examples of such results (e.g., Age × Treatment interactions in the effects of item concreteness, item elaboration, and organizational context) have been identified in list-learning experiments where children of different ages receive a small, fixed number of study-test cycles on the target list. A stages-of-learning analysis reveals that such designs confound a treatment's potential interactions with age and its potential interactions with stage of learning. The analysis also reveals specific situations in which such designs will produce converging, diverging, and crossover Age × Treatment interactions even though the treatment does not interact with age in any way. A series of experiments is reported in which a mathematical model that incorporates stages-of-learning distinctions is applied to the well-known interaction between age and item concreteness (pictures versus words) in cued recall. Although a diverging Age × Treatment interaction has been observed in previous research, it was found that there are at least four different interactions between the picture-word manipulation and age; (a) a diverging interaction at storage that operates throughout elementary school; (b) a diverging interaction localized within retrieval learning and operating during the first half of the elementary school; (c) a converging interaction localized within retrieval learning and operating during the second half of elementary school; and (d) a diverging interaction localized within retrieval performance and operating throughout elementary school. 相似文献
916.
Acquisition of gross motor sequence learning with physical and mental training elicits gains in performance. However, the effects of sleep or daytime consolidation after both types of practice remain unclear, especially the effects upon the goal- and movement-based components of a gross motor sequential task. The main purpose of this study was to test the effect of physical practice (PP) and motor imagery practice (MIP) on the acquisition and consolidation processes of gross motor sequence learning.Seventy-six participants were tested before and after PP or MIP on a whole-body sequential paradigm, following either a night of sleep (PPsleep and MIPsleep groups) or an equivalent daytime period (PPday and MIPday groups). Control groups without training were tested following similar timespans (CTRLsleep and CTRLday groups). The number of sequential movements and the centre of mass displacement – corresponding to goal and movement-based components, respectively – were assessed.Results showed that relative to the CTRL groups, the PP and MIP groups improved performance during acquisition. Importantly, only the MIPsleep group further improved performance after a night of sleep; participants of other groups stabilised their performance after consolidation. Additionally, the number of sequential movements and the centre of mass displacement evolved conjointly without being influenced by the type of training or the nature of the consolidation.To conclude, these results confirm that sleep contributes to the consolidation of gross motor sequence learning acquired with MIP but not PP. The relationship between the goal- and movement-based components of a gross motor sequential task is discussed. 相似文献
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Dano A Leli H.Julia Hannay Janet C Falgout Edwin M Wilson Edward L Wills Charles R Katholi James H Halsey 《Brain and cognition》1982,1(2):206-223
A sensorimotor control activation task was used to isolate the focal cerebral blood flow changes resulting from the visual and cognitive processing of a right-left discrimination task. Eleven normal right-handed males participated. The sensorimotor control task produced significant bilateral increases in flow in most cortical channels. Significant bilateral parieto-occipital activation was found for the right-left discrimination task over and above the flow changes produced by the sensorimotor control task. The left occipital flow increase resulting from the right-left discrimination task was found to be negatively related to task performance. An inverse relationship was also found between WAIS Performance IQ and the blood flow change in the left parietal channel. These results suggest areas for further testing concerning potential individual differences in cognitive processing during the performance of a right-left discrimination task. 相似文献
919.
A Markov grammar was developed to account for the sequence of conversational moves in discourse about transgressions. This discourse interrupts ongoing activity and functions to repair the social fabric when inappropriate or awkward behavior has attracted the attention of interactants. A corpus of 1248 such interchanges, obtained in 90 hr of observation in kindergarten through fourth grade classrooms, was the basis of the grammar. Beginning with theoretical assumptions about the canonical form of these interchanges, the process of grammar development was explicitly described and the direction given by pragmatic considerations (such as attaining a balance between parsimony and accuracy) was discussed. The resultant grammar accounted for 83% of the corpus and served as a framework within which age and context effects on the discourse were explored. Loglinear analyses of multiway contingency tables at each transition point in the grammar revealed that the presence vs absence of an adult in the interchange affected the relative preferences for different alternatives at one juncture, but that subjects' ages did not influence the sequencing of discourse as described by the model. The overall approach was considered in relation to the more traditional uses of Markov models and its strengths, weaknesses, and future promise for discourse analysis were discussed. 相似文献