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851.
Action perception is selective in that observers attend to and encode certain dimensions of action over others. But how flexible is action perception in its selection of perceptual information? One possibility is that observers consistently attend to particular dimensions of action over others across different contexts. Another possibility, tested here, is that observers flexibly vary their attention to different dimensions of action based on the context in which action occurs. We investigated 9.5-month-old infants’ and adults’ ability to attend to drop height under varying contexts—aiming to drop an object into a narrow container versus a wide container. We predicted differential attention to increases in aiming height for the narrow container versus the wide container because an increase in aiming height has a differential effect on success (i.e., getting the object into the container) depending on the width of the container. Both adults and infants showed an asymmetry in their attention to aiming height as a function of context; in the wide container condition increases and decreases in aiming height were equally detectable, whereas in the narrow container condition observers more readily discriminated increases over decreases in aiming height. These results indicate that action perception is both selective and flexible according to context, aiding in action prediction and infants’ social–cognitive development more broadly.  相似文献   
852.
In understanding delinquency in adolescence the key theoretical papers on the role of oedipal resolution and superego development remain essential and are summarized. To this we need to add our knowledge of trauma and of developmental deficit if we are to offer appropriate strategies for young delinquents and to be able to select those for whom therapy, intervention with the network or containment are appropriate. The defence of activity, commonplace in adolescence, becomes too easily enacted in the network around the delinquent and in the public domain, and thoughts are given on this process and on the roles open to the psychotherapist.

Afin de mieux cerner la délinquance chez l'adolescent, l'auteur passe en revue certains textes théoriques fondamentaux et toujours d'actualité sur l'importance de la dissolution du complexe d'?dipe et de la mise en place du Surmoi. À ces thèmes il convient d'ajouter ce que nous connaissons de l'impact des traumatismes et des défaillances développementales si nous voulons offrir au jeune délinquant des stratégies adéquates et identifier ceux pour qui une modalité particulière d'intervention - thérapie, prise en charge en réseau, structure contenante - semble la mieux indiquée. La défense par mise en acte, fréquente À l'adolescence, trouve trop facilement un écho dans le réseau d'intervenants autour de l'adolescent et dans le champ social ; l'auteur développe ses réflexions À ce sujet et explore les rôles que le thérapeute peut être amené À jouer.  相似文献   
853.
It is not unusual to find it stated as a fact that the left hemisphere is specialized for the processing of rapid, or temporal aspects of sound, and that the dominance of the left hemisphere in the perception of speech can be a consequence of this specialization. In this review we explore the history of this claim and assess the weight of this assumption. We will demonstrate that instead of a supposed sensitivity of the left temporal lobe for the acoustic properties of speech, it is the right temporal lobe which shows a marked preference for certain properties of sounds, for example longer durations, or variations in pitch. We finish by outlining some alternative factors that contribute to the left lateralization of speech perception.  相似文献   
854.
In every psychoanalysis, there is a contradiction between an eternal and a limited time perspective as regards the analytic task. This corresponds to the contradictory relationship existing between the unconscious, which is timeless, and the linear time of external reality. On the basis of these conditions, this paper describes how the experience of time in different ways is significant for analytical understanding and how it influences the analytic work. Various phenomena related to time and the perception of time are illustrated by clinical vignettes. The difficulties in handling the time limit are discussed from both a theoretical and a practical point of view. At the termination of a psychoanalysis, the two time perspectives meet. This presents opportunities for insight and change as well as a special challenge to both the analysand and the analyst.  相似文献   
855.
Charismatic presidents like John F. Kennedy, Ronald Reagan, and now Barack Obama have been able to overcome stereotype‐based barriers to political power by connecting emotionally with viewers, particularly through their nonverbal skills. In this study we focus on the facial displays of emotion by President Obama and how participants interpret them. This study builds upon the pioneering research of the Dartmouth Group concerning response to displays of happiness‐reassurance by political leaders. It will first replicate and extend upon existing research by using Ekman and Friesen's Facial Action Coding System (FACS) to characterize facial displays by President Obama, specifically three neutral displays and three different types of smiles. Second, this study replicates research carried out over two decades ago concerning individual differences in sex, ethnicity, and age cohort on response to political candidates culturally defined as Black. Video focusing on the head and torso were FACS coded and presented in a web‐based experiment to 79 participants working at a southern institution of higher education. The participants identified the emotions felt by President Obama on a scale ranging from “not at all” to “extremely” focusing on the basic emotion terms of: “Happy” and “Playful” (happiness‐reassurance) and “Angry” and “Disgusted” (anger‐threat). Findings suggest participants differentiate between subtle facial‐display differences and that there are differences based upon ethnicity and support for President Obama when they interpret his facial displays of emotion.  相似文献   
856.
Knowledge about prenatal learning has been largely predicated on the observation that newborns appear to recognize the maternal voice. Few studies have examined the process underlying this phenomenon; that is, whether and how the fetus responds to maternal voice in situ. Fetal heart rate and motor activity were recorded at 36 weeks gestation (n = 69) while pregnant women read aloud from a neutral passage. Compared to a baseline period, fetuses responded with a decrease in motor activity in the 10 s following onset of maternal speech and a trend level decelerative heart rate response, consistent with an orienting response. Subsequent analyses revealed that the fetal response was modified by both maternal and fetal factors. Fetuses of women who were previously awake and talking (n = 40) showed an orienting response to onset of maternal reading aloud, while fetuses of mothers who had previously been resting and silent (n = 29) responded with elevated heart rate and increased movement. The magnitude of the fetal response was further dependent on baseline fetal heart rate variability such that largest response was demonstrated by fetuses with low variability of mothers who were previously resting and silent. Results indicate that fetal responsivity is affected by both maternal and fetal state and have implications for understanding fetal learning of the maternal voice under naturalistic conditions.  相似文献   
857.
The author investigated the detection of timing and intensity variations in tone sequences within the framework of perceptual independence or integration. The participants listened to sequences of tones that contained variations in timing, intensity, or both. Each participant tried to detect variations in the dimension that was declared relevant, which was either timing or intensity. The irrelevant dimension was held constant, or varied in a manner uncorrelated with the relevant dimension, or varied in a correlated manner. When the variations in the 2 dimensions were correlated, the correlation could be either positive (i.e., timing and intensity created accents in the same sequences) or negative (i.e., timing and intensity created accents in different sequences). Uncorrelated variation in the irrelevant dimension interfered with the detection of variations in the relevant dimension. In the case of a positive correlation between the 2 dimensions, the detection of variations was better than it was with the absence of variation in the irrelevant dimension only for participants who attended to timing. In the case of a negative correlation, the effect was the opposite. The results showed that timing and intensity accents were not processed by completely independent channels. Rather, information from the 2 dimensions combined at a late stage of processing.  相似文献   
858.
The usual finding of greater resistance to extinction (Rn) following partial reinforcement (PR) as compared to continuous reinforcement (CR) has not been well documented with the use of human S s in instrumental conditioning. One hundred twenty male and female college students practiced discrete trials on the pursuit rotor. Resistance was measured by the number of trial S was willing to continue under instructions that S would terminate the experiment. Those S s receiving knowledge of results during 25%, 50%, or 75% of the first 24 trials showed greater Rn (p < .01) than Ss receiving knowledge of results on all 24 trials.  相似文献   
859.
Recent findings suggest that infants understand others’ preferential choice and can use the perspectives and beliefs of others to interpret their actions. The standard interpretation in the field is that infants understand preferential choice as a dispositional state of the agent. It is possible, however, that these social situations trigger the acquisition of more general, not person-specific knowledge. In a looking-time study we showed an Agent A demonstrating a choice, that only could have been interpreted as preferential based on the perspective (and thus the belief) of the agent, not the observer. Then we introduced a new agent (Agent B), who chose consistently or inconsistently with Agent A; also varying whether Agent B was an adult or a child. Results show that infants expected Agent B (both the adult and the child) to choose as Agent A, but only in the condition where according to Agent A’s knowledge two objects were present in familiarization(confirming previous evidence on the importance of contrastive choice). We interpret these results in the following way: (1) infants do not encode the perspectives of other agents as person-specific sources of knowledge and (2) they learn about the object, rather than the agent’s disposition towards that object. We propose that early theory of mind processes lack the binding of belief content to the belief holder. However, such limitation may in fact serve an important function, allowing infants to acquire information through the perspectives of others in the form of universal access to general information.  相似文献   
860.
This study examined the perception of one's own and others' ability in preschool Japanese boys and girls. In Study 1, 70 Japanese boys and girls aged 4–6 years rated their own and their close friend's ability on their favorite outdoor and indoor activities. In Study 2, 65 Japanese children aged 5 and 6 years rated their own and their close friend's ability and guessed that of a nonfriend (a mere acquaintance child in the preschool) on their most and least favorite outdoor and indoor activities. The major findings were as follows: (a) the perception of preschool children's own ability correlates with that of their close friend's ability; (b) ability perception was influenced by preference for the activity and by gender; and (c) no difference was found between ratings for a close friend and a nonfriend according to activities preferences, which differed from the ability perception by preadolescent children.  相似文献   
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