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111.
The present study sought to determine whether semantic satiation is merely a by-product of adaptation or satiation of upstream, nonsemantic perceptual processes or whether the effect can have a locus in semantic memory. This was done by measuring event-related brain potentials (ERPs) in a semantic word-detection task involving multiple presentations of primes and critical related and unrelated words in three experiments involving visual (Experiment 1) and auditory (Experiments 2A and 2B) stimuli. Primes varied in their type case (Experiment 1) or pitch (Experiment 2B) in order to discourage sensory adaptation. Prime satiation and relatedness of the primes to the critical word had interacting effects on ERP amplitude to critical words, particularly within the time-window of the N400 component. Because numerous studies have indicated a role for the N400 in semantic processing, modulation of the N400 relatedness effect by prime satiation (with little or no contribution from perceptual adaptation) suggests that semantic memory can be directly satiated, rather than the cost to semantic processing necessarily resulting from impoverishment of perceptual inputs. 相似文献
112.
Based on Schmidt's (1975) variability of practice hypothesis, this study examined acquisition and transfer of a gross motor skill, namely tossing, in 58 patients with Alzheimer's disease (AD) and 58 healthy older adults under constant, blocked, and random practice conditions. While healthy older adults were able to learn the tossing task equally well under the three practice conditions, only AD patients receiving constant practice showed significant improvements. Tests of intermediate transfer yielded the expected random practice advantage in healthy controls but not AD patients. None of the practice conditions facilitated intermediate transfer in AD patients; however, constant practice did benefit these impaired individuals on tests of near transfer. These results indicate that the variability of practice hypothesis does not extend to AD patients. As motor learning and transfer were clearly a function of constant practice, future attempts to retrain basic activities of daily living in AD patients should emphasize consistency in training. 相似文献
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114.
We assessed the impact of visual similarity on written word identification by having participants learn new words (e.g. BANARA) that were neighbours of familiar words that previously had no neighbours (e.g. BANANA). Repeated exposure to these new words made it more difficult to semantically categorize the familiar words. There was some evidence of interference following an initial training phase, and clear evidence of interference the following day (without any additional training); interference was larger still following more training on the second day. These findings lend support to models of reading that include lexical competition as a key process. 相似文献
115.
We examined associations between self-reported attachment anxiety and avoidance and responses to the Rorschach test. Seventy-two, nonpatient Israeli adults participated in a 2-session study. In the first session, they completed a self-report scale tapping the dimensions of attachment anxiety and attachment avoidance. In the second session, they completed the Rorschach test. The Rorschach was administered and coded according to Exner's (2001) Comprehensive System scoring. We found that self-reports of attachment anxiety were associated with Rorschach scores thought to indicate difficulties in regulating and controlling emotions and self-perceptions of being relatively helpless and unworthy. Self-reports of attachment avoidance were associated with Rorschach scores thought to reflect lack of acknowledgment of need states and maintenance of a grandiose self. We discuss the findings in terms of implicit psychodynamic processes inherent in attachment-system functioning. 相似文献
116.
Several investigators have claimed over the past decade that working memory (WM) and general intelligence (g) are identical, or nearly identical, constructs, from an individual-differences perspective. Although memory measures are commonly included in intelligence tests, and memory abilities are included in theories of intelligence, the identity between WM and intelligence has not been evaluated comprehensively. The authors conducted a meta-analysis of 86 samples that relate WM to intelligence. The average correlation between true-score estimates of WM and g is substantially less than unity (p=.479). The authors also focus on the distinction between short-term memory and WM with respect to intelligence with a supplemental meta-analysis. The authors discuss how consideration of psychometric and theoretical perspectives better informs the discussion of WM-intelligence relations. 相似文献
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118.
The purpose of this study is to investigate the effects of integrated mnemonics on consonant letter naming and consonant sound production for three 4th grade Turkish students, at-risk for failure in an English-as-a-Foreign-Language (EFL) classroom. Mnemonic picture cards, where the target consonant letter was embedded as an integral part of the picture, were developed (e.g., the letter C as the clock, the letter D as the drum). Results showed that (a) all three students reached mastery on consonant letter naming, and (b) all three students showed marked improvement for consonant sound production, with one student reaching mastery. Letter-sound correspondence performance remained near instructional levels one week post-intervention. Generalization data showed students could produce some words that began and ended with consonant sounds, once consonant letter-sound correspondence was mastered. 相似文献
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This study examined similarities and differences in social support and self-efficacy for abstinence between women and men
recovering from substance addiction. The sample consisted of 87 residents of Oxford House (OH) self-run, community-based recovery
homes. Analyses revealed similarities between women and men in terms of the composition and utilization of support networks
and abstinence self-efficacy. Also, for both sexes, length of residency in OH was significantly related to decreased social
support for alcohol and drug use and increased self-efficacy for abstinence. However, multiple-group SEM analyses demonstrated
that social support for alcohol/drug use fully mediated the link between length of residency and abstinence self-efficacy
for women, but not for men. Findings suggest that the process of gaining self-efficacy to remain abstinent is distinct for
women and men, and that social support plays a different role in women's recovery than it does in men's. 相似文献