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171.
娃娃脸效应是指由婴儿面孔特征(或婴儿图式)所引发的普遍、进化的社会认知反应, 不仅包括对婴儿面孔的偏好性反应—— 如优先注意、关怀和照料的冲动, 还包括对于具备婴儿图式的成年人、动物甚至非生命物体的泛化性反应, 即认为这些对象具有与婴儿相似的特质并对其产生相应的态度和行为。娃娃脸效应的表现、影响因素及神经机制的相关研究证明了人类对于婴儿面孔特征的偏好性反应是一种本能释放机制, 并为进化心理学中的亲代投资及性别选择理论提供了佐证。娃娃脸效应的文化差异以及实践应用可能是这一领域未来研究的主要方向。  相似文献   
172.
纳络酮、地卓西平(MK-801)对大鼠食物渴求的影响   总被引:2,自引:0,他引:2       下载免费PDF全文
实验以条件性位置偏爱(CPP)的表达为渴求模型观察纳络酮及MK-801对大鼠食物CPP表达,探讨摄食行为调控的心理机制。48只SD大鼠分成食物组(24)与对照组(24),3轮食物匹配训练后,在CPP表达前分别注射生理盐水、纳络酮(1.0 mg˙kg -1)及MK-801(0.1 mg˙kg -1),观察各组动物在食物匹配训练侧停留时间的变化。结果发现,MK-801促进食物CPP的表达,但纳络酮对食物CPP的表达没有显著影响。以上结果表明MK-801(0.1mg˙kg -1)增强动物的食物渴求至少是其增加摄食量的原因之一,而1.0 mg˙kg -1的纳络酮降低动物的摄食量并不是由于食物渴求的下降导致的。MK-801与纳络酮调节动物摄食行为的心理机制可能不一致。  相似文献   
173.
产品评价的来源国效应   总被引:1,自引:0,他引:1       下载免费PDF全文
自Schooler(1965)开始对来源国效应进行实证研究之后,来源国效应引起了人们的广泛关注。学者们分别在个人购买和工业购买领域,采用调查、实验、联合分析、元分析及其它方法(如深度访问法)进行了大量的研究。研究结果表明,来源国效应是一种普遍存在的现象,但是受到多种因素的影响,这些因素包括其它外在产品属性、消费者的知识背景或经验、产品属性信息、产品类别以及消费者的民族差异。为了解释来源国效应这一现象,研究者提出了多种假说或模型,代表性的是信号假说、独立属性假说、概构模型和弹性模型  相似文献   
174.
Adam [1976; Lehman and Adams, 1977] suggested that a resident rat makes an olfactory comparison of cage odor and other rat odor prior to attacking an unfamiliar conspecific intruder. The findings of the present study are consistent with the notion that rats discriminate between familiar and unfamiliar putative urinary odorants Adult male albino rats were tested for preferences between areas treated with familiar urine (11 hours pretest exposure), unfamiliar urine (no pretest exposure), and untreated areas. Subjects (N = 12) preferred areas treated with familiar urine over ones treated with unfamiliar urine (p < 0.05). Also, they (N = 12 per preference-test group) preferred areas treated with either urine over untreated ones (familiar versus clean, p < 0.01; unfamiliar versus clean, p < 0.05).  相似文献   
175.
    
Response interruption and redirection (RIRD) is a common treatment for automatically reinforced vocal stereotypy; it involves the contingent presentation of task instructions. Tasks that are included in RIRD are typically selected based on caregiver report, which may affect the efficacy of RIRD. The purpose of the current study was to evaluate the role of task preference in the efficacy of RIRD for four participants who engaged in vocal stereotypy. We conducted task-preference assessments and selected tasks of varying preferences to include in RIRD. For three out of four participants, the results showed that RIRD with higher preference tasks was not effective at reducing vocal stereotypy, whereas RIRD with lower preference tasks was effective for all participants.  相似文献   
176.
    
This study demonstrates the use of two web-based programs, one to identify video preferences and the other to assess their reinforcing effects. We used the Multiple-Stimulus-Without-Replacement Preference Assessment Tool (MSWO PAT) to identify the video preference hierarchies of seven participants, ages 4–11 years old. We then used a customized reinforcer assessment program that arranged a concurrent-chains preparation with programmed conjugate schedules of reinforcement. Button presses emitted by participants modulated the quality (volume and opacity) of selected videos on a moment-to-moment basis, allowing us to identify the reinforcing effects of the videos in little time. The results showed that the preference assessment had predictive value for five of seven participants. We discuss the MSWO PAT, parameters that may affect the identification of preferences and the use of conjugate schedules to identify reinforcers.  相似文献   
177.
    
Five experiments were conducted to explore trait impulsivity as a possible contributor to the magnitude of the Brand Positivity Effect, and to provide a more sophisticated empirical account of the role of selective processing in driving it than reported in prior research. Although the experiments considered very different choice categories including a product, a service, an experience, and a public good, data were convergent in several ways: (a) the Brand Positivity Effect in judgment, choice intention, and non-hypothetical choice was replicated, (b) non-intrusive process-tracing methodology established that selective processing is related to the magnitude of the Brand Positivity Effect, and (c) the Brand Positivity Effect was demonstrated to be a robust phenomenon that is observed regardless of individuals' trait impulsivity.  相似文献   
178.
    
Environmental morality is the foundation of a sustainable future, yet its ontogenetic origin remains unknown. In the present study, we asked whether 7-month-olds have a sense of ‘environmental morality’. Infants’ evaluations of two pro-environmental actions were assessed in both visual and reaching preferential tasks. In Experiment 1, the overt behavior of protecting (i.e., collecting artificial objects spread on a lawn) was compared with the action of harming the environment (i.e., by disregarding the objects). In Experiment 2, the covert behavior of protecting the environment (i.e., maintaining artificial objects inside a container) was compared with the action of harming the environment (i.e., littering the artificial objects on a lawn). The results showed infants’ reaching preference for the agent who performed overt pro-environmental actions (Experiment 1), and no preference for the agent who performed covert pro-environmental actions (Experiment 2). These findings reveal a rudimentary ecological sense and suggest that infants require different abilities to evaluate overt impact-oriented and covert intend-oriented pro-environmental behaviors.  相似文献   
179.
    
We examine whether the cleverness of a brand's humor attempt affects consumers' brand attitudes and engagement. A clever humor attempt is any humor attempt wherein the consumer feels she must make mental connections to solve the joke (e.g., understand a cultural reference, understand the dual meaning of a pun). Across five studies, we demonstrate that as the cleverness of a humor attempt increases, consumers report higher brand attitudes and are more engaged with the brand. This effect is mediated by perceptions of brand warmth and competence and moderated by consumers' need for cognition.  相似文献   
180.
    
Positional bias is a pattern of responding to a specific location that can be influenced by response effort and/or prior learning history. Prior research on positional bias within stimulus preference assessments have focused primarily on its use in paired stimulus assessments due to the complex nature of the multiple stimulus without replacement (MSWO) preference assessment. The present study is a secondary data analysis that utilized four different methods to measure side and center bias in a MSWO preference assessment for 19 young children with autism spectrum disorder. Participants displayed varying degrees of biased responding but collectively engaged in minimal biased responding. This study includes an analysis of the four methodologies, discussion of general patterns of responding, and general recommendations for the application of these methodologies in future research.  相似文献   
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