首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1333篇
  免费   91篇
  2023年   18篇
  2022年   14篇
  2021年   19篇
  2020年   40篇
  2019年   39篇
  2018年   63篇
  2017年   64篇
  2016年   65篇
  2015年   41篇
  2014年   45篇
  2013年   188篇
  2012年   65篇
  2011年   73篇
  2010年   34篇
  2009年   34篇
  2008年   59篇
  2007年   43篇
  2006年   39篇
  2005年   30篇
  2004年   23篇
  2003年   26篇
  2002年   30篇
  2001年   24篇
  2000年   29篇
  1999年   14篇
  1998年   13篇
  1997年   11篇
  1995年   7篇
  1993年   7篇
  1992年   16篇
  1991年   7篇
  1990年   14篇
  1989年   8篇
  1988年   17篇
  1987年   16篇
  1986年   11篇
  1984年   11篇
  1983年   7篇
  1982年   7篇
  1981年   6篇
  1979年   7篇
  1978年   13篇
  1977年   7篇
  1976年   11篇
  1975年   8篇
  1974年   9篇
  1972年   7篇
  1971年   6篇
  1970年   6篇
  1968年   9篇
排序方式: 共有1424条查询结果,搜索用时 31 毫秒
931.
The authors articulate a model specifying links between (a) individuals and the physical environments they occupy and (b) the environments and observers' impressions of the occupants. Two studies examined the basic phenomena underlying this model: Interobserver consensus, observer accuracy, cue utilization, and cue validity. Observer ratings based purely on offices or bedrooms were compared with self- and peer ratings of occupants and with physical features of the environments. Findings, which varied slightly across contexts and traits, suggest that (a) personal environments elicit similar impressions from independent observers, (b) observer impressions show some accuracy, (c) observers rely on valid cues in the rooms to form impressions of occupants, and (d) sex and race stereotypes partially mediate observer consensus and accuracy. Consensus and accuracy correlations were generally stronger than those found in zero-acquaintance research.  相似文献   
932.
This article examines the applicability of the antidiscrimination provisions of the Americans with Disabilities Act (ADA) of 1990 to The Ticket to Work and Work Incentives Improvement Act (TWWIIA) passed in 1999. Among other policy changes, under the Ticket to Work program, eligible recipients of disability insurance (SSDI) and supplemental income (SSI) receive a voucher or "ticket" to obtain services from qualified employment networks (ENs). ENs provide employment services and supports to designated beneficiaries and must meet certain qualification requirements. The ADA is applicable to ENs in several ways: primarily, in the EN's responsibility to provide appropriate access and services to program participants. This article discusses application of the ADA to the Ticket Program as ENs begin to serve program beneficiaries.  相似文献   
933.
Cognitive aging research documents reduced access to contextually specific episodic details inolder adults, whereas access to semantic or other nonepisodic information is preserved or facilitated. The present study extended this finding to autobiographical memory by using a new measure; the Autobiographical Interview. Younger and older adults recalled events from 5 life periods. Protocols were scored according to a reliable system for categorizing episodic and nonepisodic information. Whereas younger adults were biased toward episodic details reflecting happenings, locations, perceptions, and thoughts, older adults favored semantic details not connected to a particular time and place. This pattern persisted after additional structured probing for contextual details. The Autobiographical Interview is a useful instrument for quantifying episodic and semantic contributions to personal remote memory.  相似文献   
934.
When the sentence She ran her best time yet in the rice last week is displayed using rapid serial visual presentation, viewers sometimes misread rice as race (M. C. Potter, A. Moryadas, I. Abrams, & A. Noel, 1993). Seven experiments combined misreading and repetition blindness (RB) paradigms to determine whether misreading of a word because of biasing sentence context represents a genuine perceptual effect. In Experiments 1-4, misreading a word either caused or prevented RB for a downstream word, depending on whether orthographic similarity was increased or decreased. Additional experiments examined temporal parameters of misreading RB and tested the hypothesis that RB results from reconstructive memory processes. Results suggest that the effect of prior context occurs during perception.  相似文献   
935.
Galanin inhibits the release of several neurotransmitters and produces performance deficits in a variety of spatial and aversive learning and memory tasks. The experiments in this study investigated the role galanin has in emotional learning and memory using a standard delay cued and contextual fear conditioning task. Rats were administered galanin into the lateral ventricles before training, and scored for freezing behavior in the same context and in a novel context with and without an auditory cue (CS) that had been paired previously with an aversive stimulus (US). Galanin-overexpressing transgenic mice were tested in an identical behavioral protocol. The galanin-administered rats and the transgenic mice were not significantly different from their respective controls on this task. A more challenging trace cued and contextual fear conditioning procedure was administered to separate groups of galanin-treated rats and galanin-overexpressing transgenic mice. Subjects were trained with the same CS and US, however, a 2.5-sec delay was inserted between CS offset and US onset. Following the trace conditioning, rats administered galanin and mice overexpressing galanin both exhibited significantly less freezing to the CS in the novel context as compared with their control groups. These results indicate that the observed disruption of cued fear conditioning was specific to the more difficult trace conditioning task. These findings are the first demonstration that galanin impairs performance on an emotional memory task and support the hypothesis that galanin-induced deficits are specific to more difficult cognitive tasks.  相似文献   
936.
937.
Vector averaging of inhibition of return   总被引:1,自引:0,他引:1  
Observers detected targets presented 400 msec after a display containing one cue or two to four cues displayed simultaneously in randomly selected locations on a virtual circle around fixation. The cue arrangement was completely uninformative about the upcoming target’s location, and eye position was monitored to ensure that the participants maintained fixation between the cue and their manual detection response. Reflecting inhibition of return (IOR), there was a gradient of performance following single cues, with reaction time decreasing monotonically as the target’s angular distance from the cued direction increased. An equivalent gradient of IOR was found following multiple cues whose center of gravity fell outside the parafoveal region and, thus, whose net vector would activate an orienting response. Moreover, on these trials, whether or not the targeted location had been stimulated by a cue had little effect on this gradient. Finally, when the array of cues was balanced so that its center of gravity was at fixation, there was no IOR. These findings, which suggest that IOR is an aftermath of orienting elicited by the cue, are compatible with population coding of the entire cue (as a grouped array for multiple cues) as the generator of IOR.  相似文献   
938.
We studied the impact of manner of exploration, orientation, spatial position, and configuration on the haptic Müller-Lyer illusion. Blindfolded sighted subjects felt raised-line Müller-Lyer and control stimuli. The stimuli were felt by tracing with the index finger, free exploration, grasping with the index finger and thumb, or by measuring with the use of any two or more fingers. For haptic judgments of extent a sliding tangible ruler was used. The illusion was present in all exploration conditions, with overestimation of the wings-out compared to wings-in stimuli. Tracing with the index finger reduced the magnitude of the illusion. However, tracing and grasping induced an overall underestimation of size. The illusion was greatly attenuated when stimuli were felt with the index fingers of both hands. Illusory misperception was not altered by the position in space of the Müller-Lyer stimuli. No effects of changes in the thickness of the line shaft were found, but there were effects of the length of the wing endings for the smaller, 5.1 cm stimuli. The theoretical and practical implications of the results are discussed.  相似文献   
939.
940.
Three convergent methodologies were used to investigate the generation and reinstatement of goals not explicitly stated in a text. Readers read paragraphs adapted from J. S. Huitema, S. Dopkins, C. M. Klin, & J. L. Myers's (1993) study, which conveyed a character's goal early in the text. The goal was either stated explicitly or implied. An event was described later in the text that was either consistent or inconsistent with the goal. Line-by-line reading data, recall for the narratives, and eye-movement data were collected. Evidence is presented that readers infer a character's goal online at the time the information is presented, and the inferred goal functions like an explicitly stated goal in online comprehension processes and in the resulting memory representation.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号