全文获取类型
收费全文 | 668篇 |
免费 | 26篇 |
国内免费 | 4篇 |
专业分类
698篇 |
出版年
2024年 | 6篇 |
2023年 | 5篇 |
2022年 | 17篇 |
2021年 | 18篇 |
2020年 | 23篇 |
2019年 | 19篇 |
2018年 | 12篇 |
2017年 | 28篇 |
2016年 | 15篇 |
2015年 | 20篇 |
2014年 | 34篇 |
2013年 | 70篇 |
2012年 | 6篇 |
2011年 | 39篇 |
2010年 | 15篇 |
2009年 | 47篇 |
2008年 | 44篇 |
2007年 | 34篇 |
2006年 | 16篇 |
2005年 | 25篇 |
2004年 | 15篇 |
2003年 | 12篇 |
2002年 | 12篇 |
2001年 | 6篇 |
2000年 | 5篇 |
1999年 | 6篇 |
1998年 | 8篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1991年 | 3篇 |
1988年 | 1篇 |
1985年 | 7篇 |
1984年 | 13篇 |
1983年 | 14篇 |
1982年 | 16篇 |
1981年 | 8篇 |
1980年 | 20篇 |
1979年 | 6篇 |
1978年 | 11篇 |
1977年 | 9篇 |
1976年 | 12篇 |
1975年 | 1篇 |
1974年 | 8篇 |
1973年 | 3篇 |
排序方式: 共有698条查询结果,搜索用时 0 毫秒
41.
Although researchers studying human speech recognition (HSR) and automatic speech recognition (ASR) share a common interest in how information processing systems (human or machine) recognize spoken language, there is little communication between the two disciplines. We suggest that this lack of communication follows largely from the fact that research in these related fields has focused on the mechanics of how speech can be recognized. In Marr's (1982) terms, emphasis has been on the algorithmic and implementational levels rather than on the computational level. In this article, we provide a computational-level analysis of the task of speech recognition, which reveals the close parallels between research concerned with HSR and ASR. We illustrate this relation by presenting a new computational model of human spoken-word recognition, built using techniques from the field of ASR that, in contrast to current existing models of HSR, recognizes words from real speech input. 相似文献
42.
MacLullich AM Edmond CL Ferguson KJ Wardlaw JM Starr JM Seckl JR Deary IJ 《Brain and cognition》2004,56(3):344-348
Cerebellar volumes show small positive correlations with cognitive ability in young adults, but no studies have examined this relationship in older adults. Furthermore, no studies have examined relationships between sizes of subareas of the cerebellum and cognitive ability. We hypothesized that size of the two areas of the neocerebellar vermis would correlate with a battery of eight cognitive tests in 50 men aged 65-70. Size of the neocerebellar areas of the vermis correlated positively with several cognitive tests (r's=.29-.37, p<.05), whilst sizes of other parts of the vermis did not correlate with any cognitive tests. Total cerebellar volumes correlated significantly with a test of nonverbal reasoning (r=.030, p=.42). These findings suggest a specific association of neocerebellar vermis size with variations in cognitive ability in older adults. 相似文献
43.
Although reactivation and reinstatement reminders differ procedurally, differences in their memory-preserving effects have been described as artifactual. In three experiments, we examined this conclusion. One hundred and twelve 6-month-olds learned an operant task, forgot it, received a reactivation or reinstatement reminder to recover the inactive memory, and were tested after increasing delays until they forgot it again. In Experiments 1a and 1b, a single reactivation reminder extended infants' memory of an operant mobile task for 2 weeks after reminding, but a single reinstatement extended it for 4 weeks, when testing was discontinued. In Experiment 2, a single reinstatement extended 6-month-olds' memory of an operant train task for 19 weeks after reminding, when infants were almost 1 year old. After reactivation, infants remember this task for only 2 weeks. The finding that the memory-preserving effect of reinstatement is greater by an order of magnitude suggests that procedural differences between the two reminders have functional significance. 相似文献
44.
Hideko Takeshita 《Animal cognition》2001,4(3-4):335-345
I made systematic observations of three infant chimpanzees aged 2–4 years, who participated in a series of diagnostic tests
of combinatory manipulation. The tasks were stacking blocks, seriating nesting cups, and inserting an object into the corresponding
hole in a plate or a box. These tasks were originally devised for developmental diagnosis of human infants. The chimpanzee
infants displayed combinatory manipulation comparable to that of 1-year-old human infants. Common motor characteristics were
observed across the tasks, namely "repetition" of actions, "adjustment" of actions, "reversal" of actions, and "shifts" of
attention. Humans and chimpanzees share these actions when manipulating multiple objects to complete a task. Repetition, adjustment,
and reversal of actions and shifts of attention underlie higher levels of cognition common to both species.
Accepted after revision: 5 May 2001
Electronic Publication 相似文献
45.
现代解剖学的涵义已大大延伸了,许多边缘学科,其地位仍然是重要的。无论从微观上或宏观看,前景是非常广阔的。活体水平上的研究应是人体解剖学发展的基本方向,要用辩证的思维方法作指导。 相似文献
46.
Various theories of moral cognition posit that moral intuitions can be understood as the output of a computational process performed over structured mental representations of human action. We propose that action plan diagrams—“act trees”—can be a useful tool for theorists to succinctly and clearly present their hypotheses about the information contained in these representations. We then develop a methodology for using a series of linguistic probes to test the theories embodied in the act trees. In Study 1, we validate the method by testing a specific hypothesis (diagrammed by act trees) about how subjects are representing two classic moral dilemmas and finding that the data support the hypothesis. In Studies 2–4, we explore possible explanations for discrete and surprising findings that our hypothesis did not predict. In Study 5, we apply the method to a less well‐studied case and show how new experiments generated by our method can be used to settle debates about how actions are mentally represented. In Study 6, we argue that our method captures the mental representation of human action better than an alternative approach. A brief conclusion suggests that act trees can be profitably used in various fields interested in complex representations of human action, including law, philosophy, psychology, linguistics, neuroscience, computer science, robotics, and artificial intelligence. 相似文献
47.
Walter Renner Christian Kandler Wiebke Bleidorn Rainer Riemann Alois Angleitner Frank M. Spinath Jutta Menschik-Bendele 《Personality and individual differences》2012,52(1):89-93
Whereas a substantial genetic component of Conservatism and Religiosity is well documented, there is little evidence with respect to the behavior genetics of other aspects of human values. A sample of 157 monozygotic and 74 dizygotic twins reared together received the Austrian Value Questionnaire (AVQ), which measures a broad variety of value domains and their facets, found by the lexical approach in the German language. Family resemblance of Intellectualism, Harmony, Materialism, and Conservatism was best explained by additive or dominance genetic and non-shared environmental effects, whereas the influence of the environment shared by twins was negligible. In contrast, Religiosity was transmitted by additive genetic, shared and non-shared environmental influences. At the level of facets, the Intellectualism and Harmony showed a homogenous etiology while Religiosity, Materialism, and Conservatism were etiologically heterogeneous. 相似文献
48.
The study of human episodic memory is a topic that interests cognitive and mathematical psychologists as well as clinicians interested in the diagnosis and assessment of Alzheimer’s disease and related disorders (ADRD). In this paper, we use simple cognitive models for the recognition and recall tasks typically applied in clinical assessments of ADRD to study memory performance in ADRD patients. Our models make use of hierarchical Bayesian methods as a way to model individual differences in patient performance and to facilitate the modeling of performance changes that occur during multiple recall tasks. We show how the models are able to account for different aspects of patient performance, and also discuss some of the predictive capabilities of the model. We conclude with a discussion on the scope to improve on our results by discussing the link between memory theory in psychology and clinical practice. 相似文献
49.
The survivor interaction contrasts (SIC) is a powerful measure for distinguishing among candidate models of human information processing. One class of models to which SIC analysis can apply are the coactive, or channel summation, models of human information processing. In general, parametric forms of coactive models assume that responses are made based on the first passage time across a fixed threshold of a sum of stochastic processes. Previous work has shown that the SIC for a coactive model based on the sum of Poisson processes has a distinctive down-up-down form, with an early negative region that is smaller than the later positive region. In this note, we demonstrate that a coactive process based on the sum of two Wiener processes has the same SIC form. 相似文献
50.
Children typically follow a well-defined series of stages as they learn to draw, but the rate at which they progress through these stages varies from child to child. Some experts have argued that these individual differences in drawing development reflect individual differences in intelligence. Here we assessed the validity of a drawing test that is commonly used to assess children’s intellectual abilities. In a single study, 125 5- and 6-year-olds completed the Draw-A-Person: A Quantitative Scoring System (DAP:QSS) and the Wechsler Preschool and Primary Scale of Intelligence-Revised (WPPSI-R) or the Wechsler Abbreviated Scale of Intelligence (WASI). Although there was a statistically significant correlation between scores on the DAP:QSS and scores on the Wechsler tests, when the scores of individual children were examined, the DAP:QSS yielded a high number of false positives and false negatives for low intellectual functioning. We conclude that the DAP:QSS is not a valid measure of intellectual ability and should not be used as a screening tool. 相似文献