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91.
Rats' operant responding for sucrose rewards in the 1st half of a session can vary directly with the conditions of reward in the 2nd half. The authors investigated whether that induction effect represented an animal model of emotive states. Rats pressed a lever for either ethanol or sucrose rewards in the 1st half of a 40-min session. The reward in the 2nd half of the session was, across conditions, 1% sucrose, a food pellet, or the same reinforcer delivered in the 1st half. When subjects responded for sucrose, upcoming reward type had little influence on responding in the 1st half of the session. However, when subjects responded for ethanol, upcoming 1% sucrose and food-pellet reinforcement both produced increases in responding. The results suggest that the procedure produced different emotive states, but further work is needed to support such a model. The results also have potential applied implications. 相似文献
92.
93.
What is "marked" in visual marking? Evidence for effects of configuration in preview search 总被引:3,自引:0,他引:3
Visual search for a conjunction target is facilitated when distractor sets are segmented over time: the preview benefit Watson and Humphreys (1997) suggested that this benefit involved inhibition of old items (visual marking, VM). We investigated whether the preview benefit is sensitive to the configuration of the old distractors. Old distractors changed their location prior to the occurrence of the new items, while also either changing or maintaining their configuration. Configuration changes disrupted search. The results are consistent with object-based VM, which is sensitive to the configuration of old stimuli. 相似文献
94.
Humphreys MS Dennis S Maguire AM Reynolds K Bolland SW Hughes JD 《Journal of experimental psychology. Learning, memory, and cognition》2003,29(5):797-812
Following study, participants received 2 tests. The 1st was a recognition test; the 2nd was designed to tap recollection. The objective was to examine performance on Test 1 conditional on Test 2 performance. In Experiment 1, contrary to process dissociation assumptions, exclusion errors better predicted subsequent recollection than did inclusion errors. In Experiments 2 and 3, with alternate questions posed on Test 2, words having high estimates of recollection with one question had high estimates of familiarity with the other question. Results supported the following: (a) the 2-test procedure has considerable potential for elucidating the relationship between recollection and familiarity; (b) there is substantial evidence for dependency between such processes when estimates are obtained using the process dissociation and remember-know procedures; and (c) order of information access appears to depend on the question posed to the memory system. 相似文献
95.
Giovanello KS Verfaellie M Keane MM 《Cognitive, affective & behavioral neuroscience》2003,3(3):186-194
In two experiments, we tested the hypothesis that medial temporal lobe (MTL) amnesic patients and, likewise, diencephalic
(DNC) amnesic patients evidence a disproportionate deficit in memory for associations in comparison with memory for single
items. In Experiment 1, we equated item recognition in amnesic and control participants and found that, under these conditions,
associative recognition remained impaired both for MTL patients and for DNC patients. To rule out an alternative interpretation
of the results of Experiment 1, in Experiment 2 we compared the performance of amnesic and control participants on a one-item
recognition task and a two-item recognition task that required no memory for the association between members of word pairs.
In the MTL group, when single-item recognition was equated to that of the controls, two-item nonassociative pair memory was
equivalent as well. In the DNC group, nonassociative pair memory was impaired, but this impairment did not fully account for
the impairment in associative memory. These findings indicate that memory for novel associations between items is disproportionately
impaired in comparison with memory for single items in amnesia. 相似文献
96.
Among a sample of 176 low-income mothers from 3 ethnic groups in the United States, the authors investigated ethnic differences in attitudes toward preferred parenting strategies, or styles; ethnic differences in the potential for child abuse; and the relationship between parenting strategies, the potential for child abuse, and parental satisfaction. They distributed the Maternal Reactions to Child's Deviant Behavior subscale (K. M. Rickard, W. Graziano, & R. Forehand, 1984), a shortened version of the Child Abuse Potential Inventory (CAPI; J. S. Milner & R. C. Wimberley, 1979), and a Parental Satisfaction Scale (N. P Medora, S. M. Wilson, & J. Larson, 1996) to the participants. The results indicated no significant ethnic differences in preferred parenting styles. Mothers from all 3 ethnic groups ranked praise and reasoning as the 1st and 2nd preferred parenting strategies. There were no ethnic differences in the perceived potential for child abuse. Parental satisfaction was negatively related to 2 of the CAPI subscales--Loneliness and Problems. The parenting strategy reasoning was positively correlated with parental satisfaction. 相似文献
97.
The large literature on incidental learning relies almost exclusively on laboratory experiments. Whenever researchers have attempted to demonstrate incidental learning of real-world regularities, they have typically failed to show learning. For example, it is well established that people do not learn regularities in everyday objects, such as the left-right orientation of faces on coins, despite a very large exposure to them. In this report, we examine this apparent contradiction. We argue that most studies exploring real-life incidental learning use tests that are not as sensitive to low-confidence information as those traditionally used in laboratory tasks. Using more sensitive measures, we show that it is possible to learn regularities from British and Japanese cultural life as a direct result of exposure to these regularities. Further, confidence measures suggest that although the information may be acquired incidentally, it can be expressed with and without concomitant awareness of that knowledge. 相似文献
98.
Asymmetric dependencies in perceiving identity and emotion: experiments with morphed faces. 总被引:4,自引:0,他引:4
We investigated whether an asymmetric relationship between the perception of identity and emotional expressions in faces (Schweinberger & Soukup, 1998) may be related to differences in the relative processing speed of identity and expression information. Stimulus faces were morphed across identity within a given emotional expression, or were morphed across emotion within a given identity. In Experiment 1, consistent classifications of these images were demonstrated across a wide range of morphing, with only a relatively narrow category boundary. At the same time, classification reaction times (RTs) reflected the increased perceptual difficulty of the morphed images. In Experiment 2, we investigated the effects of variations in the irrelevant dimension on judgments of faces with respect to a relevant dimension, using a Garner-type speeded classification task. RTs for expression classifications were strongly influenced by irrelevant identity information. In contrast, RTs for identity classifications were unaffected by irrelevant expression information, and this held even for stimuli in which identity was more difficult and slower to discriminate than expression. This suggests that differences in processing speed cannot account for the asymmetric relationship between identity and emotion perception. Theoretical accounts proposing independence of identity and emotion perception are discussed in the light of these findings. 相似文献
99.
This study examined the organization of self-knowledge, with special attention to beliefs about physical appearance, in three groups of college-aged women: high body dissatisfaction with symptoms of disordered eating; high body dissatisfaction with no symptoms of disorder; and low body dissatisfaction. In the nondisordered, dissatisfied group, negative beliefs about physical appearance were organized in the self-structure in a way that isolated those beliefs and might minimize their impact and importance. This group also displayed adaptive types of self-concept organization (evaluative integration for those with important negative self-beliefs and compartmentalization for those with important positive beliefs) and effective coping strategies. Features of self-structure that characterize the nondisordered,dissatisfied group may provide a useful model for helping individuals with disordered eating cope with their negative physical appearance beliefs. 相似文献
100.
Wayne A. Hochwarter Kelly L. Zellars Pamela L. Perrew Allison W. Harrison 《Journal of applied social psychology》1999,29(10):2203-2218
The present study examined whether employees high in negative affectivity (NA) are destined to be unhappy at work. Managerial employees provided information regarding perceptions of job characteristics, negative affectivity (NA), job satisfaction, and intentions to turnover. Using hierarchical regression, our findings suggest that employees who reported being high NA were more reactive to the environmental cues of perceived job scope. Specifically, NA interacted with job scope such that individuals high in NA who perceived their jobs as being higher (lower) in scope reported more (less) job satisfaction than did individuals low in NA. Implications for organizations and future research directions are discussed. 相似文献