全文获取类型
收费全文 | 1519篇 |
免费 | 120篇 |
专业分类
1639篇 |
出版年
2023年 | 14篇 |
2022年 | 19篇 |
2021年 | 25篇 |
2020年 | 55篇 |
2019年 | 53篇 |
2018年 | 77篇 |
2017年 | 66篇 |
2016年 | 90篇 |
2015年 | 70篇 |
2014年 | 73篇 |
2013年 | 205篇 |
2012年 | 124篇 |
2011年 | 92篇 |
2010年 | 76篇 |
2009年 | 73篇 |
2008年 | 89篇 |
2007年 | 61篇 |
2006年 | 39篇 |
2005年 | 35篇 |
2004年 | 61篇 |
2003年 | 34篇 |
2002年 | 30篇 |
2001年 | 19篇 |
2000年 | 14篇 |
1999年 | 9篇 |
1998年 | 9篇 |
1997年 | 6篇 |
1996年 | 3篇 |
1994年 | 5篇 |
1993年 | 7篇 |
1992年 | 4篇 |
1991年 | 4篇 |
1990年 | 5篇 |
1988年 | 4篇 |
1987年 | 5篇 |
1986年 | 5篇 |
1984年 | 3篇 |
1982年 | 4篇 |
1981年 | 3篇 |
1980年 | 6篇 |
1979年 | 5篇 |
1978年 | 3篇 |
1976年 | 12篇 |
1975年 | 3篇 |
1974年 | 5篇 |
1973年 | 4篇 |
1971年 | 3篇 |
1968年 | 3篇 |
1966年 | 5篇 |
1963年 | 2篇 |
排序方式: 共有1639条查询结果,搜索用时 0 毫秒
71.
Steven?C.?Clark Adam?M.?Dover Glenn?GeherEmail author Paul?K.?Presson 《Current psychology (New Brunswick, N.J.)》2005,24(3):180-202
For 19 mating-relevant traits, single males (N= 53) and single females (N= 86) rated (a) themselves relative to their same-sex peers, (b) their perceptions of the qualities desired by members of
the opposite sex in an ideal partner, and (c) the qualities desired in their own ideal romantic partner. Several themes emerged
from the data. First, males’ and females’ judgments of what members of the opposite-sex seek were generally accurate. Second,
males and females both feel that they fall short of perceived opposite-sex expectations in a few areas. Third, both males
and females desire an ideal partner better than themselves, but this is especially true for females. These findings are discussed
in terms of evolutionary social psychological principles. 相似文献
72.
Differential role of inhibition in habituation of two independent afferent pathways to a common motor output 下载免费PDF全文
Many studies of the neural mechanisms of learning have focused on habituation, a simple form of learning in which a response decrements with repeated stimulation. In the siphon-elicited siphon withdrawal reflex (S-SWR) of the marine mollusk Aplysia, the prevailing view is that homosynaptic depression of primary sensory afferents underlies short-term habituation. Here we examined whether this mechanism is also utilized in habituation of the tail-elicited siphon withdrawal reflex (T-SWR), which is triggered by an independent, polysynaptic afferent pathway that converges onto the same siphon motor neurons (MNs). By using semi-intact preparations in which tail and/or siphon input to siphon MNs could be measured, we found that repeated tail stimuli administered in the presence of a reversible conduction block of the nerves downstream of the tail sensory neurons (SNs) completely abolished the induction of habituation. Subsequent retraining revealed no evidence of savings, indicating that the tail SNs and their immediate interneuronal targets are not the locus of plasticity underlying T-SWR habituation. The networks closely associated with the siphon MNs are modulated by cholinergic inhibition. We next examined the effects of network disinhibition on S-SWR and T-SWR habituation using an Ach receptor antagonist d-tubocurarine. We found that the resulting network disinhibition disrupted T-SWR, but not S-SWR, habituation. Indeed, repeated tail stimulation in the presence of d-tubocurarine resulted in an initial enhancement in responding. Lastly, we tested whether habituation of T-SWR generalized to S-SWR and found that it did not. Collectively, these data indicate that (1) unlike S-SWR, habituation of T-SWR does not involve homosynaptic depression of SNs; and (2) the sensitivity of T-SWR habituation to network disinhibition is consistent with an interneuronal plasticity mechanism that is unique to the T-SWR circuit, since it does not alter S-SWR. 相似文献
73.
Dovidio JF ten Vergert M Stewart TL Gaertner SL Johnson JD Esses VM Riek BM Pearson AR 《Personality & social psychology bulletin》2004,30(12):1537-1549
The present work investigated mechanisms by which Whites' prejudice toward Blacks can be reduced (Study 1) and explored how creating a common ingroup identity can reduce prejudice by promoting these processes (Study 2). In Study 1, White participants who viewed a videotape depicting examples of racial discrimination and who imagined the victim's feelings showed greater decreases in prejudice toward Blacks than did those in the objective and no instruction conditions. Among the potential mediating affective and cognitive variables examined, reductions in prejudice were mediated primarily by feelings associated with perceived injustice. In Study 2, an intervention designed to increase perceptions of a common group identity before viewing the videotape, reading that a terrorist threat was directed at all Americans versus directed just at White Americans, also reduced prejudice toward Blacks through increases in feelings of injustice. 相似文献
74.
Adam?M.?Malin Blaine?J.?FowersEmail author 《Current psychology (New Brunswick, N.J.)》2004,23(1):77-85
This study examined the emotional response of 110 adolescents living in the New York metropolitan area one month and five
months after the destruction of the World Trade Center (WTC) by terrorists. The purpose of the study was to assess emerging
hypotheses in political psychology that suggest that there are differential emotional responses to a national trauma that
recede in predictable directions. The results followed predictions and indicate that adolescents experienced a higher level
of emotions related to the Crisis and Bereavement dimension than affect associated with Vulnerability and that the emotional
response decreased during the four-month follow-up period. There was no effect on emotional response from the biological sex
or political orientation of the respondents, which is inconsistent with other studies in the literature. The absence of a
political orientation effect is explained in terms of the lack of a domestic ideological difference in response to the terrorist
attack. 相似文献
75.
As people study more facts about a concept, it takes longer to retrieve a particular fact about that concept. This fan effect
(Anderson, 1974) has been attributed to competition among associations to a concept. Alternatively, the mental-model theory
(Radvansky & Zacks, 1991) suggests that the fan effect disappears when the related concepts are organized into a single mental
model. In the present study, attentional focus was manipulated to affect the mental model to be constructed. One group of
participants focused on the person dimension of personlocation pairs, whereas the other group focused on the location dimension.
The result showed that the fan effect with the focused dimension was greater than the fan effect with the nonfocused dimension,
which is contrary to the mental-model theory. The number of associations with a concept is indeed crucial during retrieval,
and the importance of the information seems to be accentuated with attentional focus. 相似文献
76.
The concept of informed consent was one of the most fruitful ideas that deeply changed the relationships between physicians
and their patients from paternalism to respect for the personal autonomy of subjects needing professional medical care. The
great progress in medicine, also involving the pharmaceutical industry, has created an increasing need to perform different
clinical and experimental trials. The evolution of clinical research in the last decades has influenced strongly the design
of these studies. One of the most important changes in this field has been the use of placebo groups in double-blind controlled
studies. The controversies have involved not only the use of placebo when standard or proven treatment was available, but
also some specific problems concerning the procedure of obtaining informed consent in such trials. This paper briefly presents
the evolution of informed consent in Poland as well as different ethical and legal problems concerning informed consent and
the use of placebo controls in clinical trials.
An earlier version of this paper was presented at an international conference, “Placebo: Its Action and Place in Health Research
Today,” held in Warsaw, Poland on 12–13 April, 2003. 相似文献
77.
Neurophysiological experiments with monkeys have demonstrated that working memory (WM) is associated with persistent neural
activity in multiple brain regions, such as the prefrontal cortex (PFC), the parietal cortex, and posterior unimodal association
areas. WM maintenance is believed to require the coordination of these brain regions, which do not function in isolation but,
rather, interact to maintain visual percepts that are no longer present in the environment. However, single-unit physiology
studies and traditional univariate analyses of functional brain imaging data cannot evaluate interactions between distant
brain regions, and so evidence of regional integration during WM maintenance is largely indirect. In this study, we utilized
a recently developed multivariate analysis method that allows us to explore functional connectivity between brain regions
during the distinct stages of a delayed face recognition task. To characterize the neural network mediating the on-line maintenance
of faces, the fusiform face area (FFA) was defined as a seed and was then used to generate whole-brain correlation maps. A
random effects analysis of the correlation data revealed a network of brain regions exhibiting significant correlations with
the FFA seed during the WM delay period. This maintenance network included the dorsolateral and ventrolateral PFC, the premotor
cortex, the intraparietal sulcus, the caudate nucleus, the thalamus, the hippocampus, and occipitotemporal regions. These
findings support the notion that the coordinated functional interaction between nodes of a widely distributed network underlies
the active maintenance of a perceptual representation. 相似文献
78.
The present experiment examined the one-target advantage (OTA) with regard to saccadic eye movements. The OTA, previously found with manual pointing responses, refers to the finding that movements are executed faster when the limb is allowed to stop on the target compared to the situation where it has to proceed and hit a second target. Using an adapted limb movement OTA task, saccades of 5 degrees and 15 degrees were made to (a) a single target (one-target), (b) one target and immediately to another target without a change in direction (two-target-extension), and (c) one target and immediately back to the start location (two-target-reversal). Unlike manual movements, the movement times for the initial saccade in the two-target-extension condition were not prolonged compared to either of the other two conditions. Moreover, this pattern of results was found for both the shorter and longer amplitude saccades. The results indicate that the OTA does not occur in the oculomotor system and therefore is not a general motor control phenomenon. 相似文献
79.
Pierce JD Cohen AB Ulrich PM 《Journal of comparative psychology (Washington, D.C. : 1983)》2004,118(1):14-19
Substantial variation exists in the importance of olfaction in influencing individuals' preferences, yet the sources of this variation remain elusive. The authors explored responsivity to 2 odorants as 1 potential source. Participants (N = 258) completed the Affective Impact of Odor Scale and were assessed for responsivity to the putative human pheromone androstenone and amyl acetate. Results showed a significant relationship between odorant responsivity and self-reports of the influence of odors. People able to smell androstenone more commonly reported odors as having a negative effect on interpersonal relationships than did people anosmic to androstenone, whereas responsivity to amyl acetate was associated with positive effects of odors on relationships. Responsivity to certain odorants may be an important factor affecting human social interactions. 相似文献
80.
Environmental support promotes expertise-based mitigation of age differences on pilot communication tasks 总被引:3,自引:0,他引:3
Morrow DG Ridolfo HE Menard WE Sanborn A Stine-Morrow EA Magnor C Herman L Teller T Bryant D 《Psychology and aging》2003,18(2):268-284
The authors investigated whether expertise is more likely to mitigate age declines when experts rely on environmental support in a pilot/Air Traffic Control (ATC) communication task. Pilots and nonpilots listened to ATC messages that described a route through an airspace, while they referred to a chart of the airspace. They read back (repeated) each message and then answered a probe question about the route. In a preliminary study, participants could take notes while listening to the messages and performing the read-back and probe tasks. In Experiment 1, opportunity to take notes was manipulated. Note taking determined when expertise mitigated age differences on the read-back task. With note taking, read-back accuracy declined with age for nonpilots but not for pilots. Without note taking, similar age-related declines occurred for pilots and nonpilots. Benefits of expertise, younger age, and note taking occurred for probe accuracy, but mitigation did not occur. The findings suggest that older adults take advantage of a domain-relevant form of environmental support (note taking) to maintain performance on some complex tasks despite typical age-related declines in cognitive ability. 相似文献