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This study was aimed at investigating the face preference phenomenon and its underlying mechanisms at 3 months of age. Using an eye-tracker apparatus, Experiment 1 demonstrated that 3-month-olds prefer natural face images to unnatural ones, replicating and extending previous evidence obtained with schematic facelike stimuli. Experiments 2 and 3 showed that the general mechanisms that induce face preference in newborns could not explain the same phenomenon at 3 months of age, when infants are attracted by perceptual cues more specific to faces. This suggests that signs of a process of cognitive specialization are already present in 3-month-olds' visual behavior toward faces.  相似文献   
173.
The time course of semantic priming between two associated words was tracked using rapid serial visual presentation of two synchronized streams of stimuli appearing at about 20 items/sec, each stream including a target word. The two words were semantically related or unrelated and were separated by stimulus onset asynchronies (SOAs) of 0–213 msec. Accuracy in reporting the first target (T1) versus the second target (T2) has been shown to interact dramatically with SOA over this range. The materials were in English in Experiment1 and Italian in Experiment2. T1 was semantically primed only at short SOAs, whereas T2 was primed at all SOAs (Experiment 1) or at all SOAs except the shortest one (Experiment2). The results indicate a strong competition between target words early in processing, with T2 often becoming the first word identified at short SOAs, thus priming T1.  相似文献   
174.
In this paper we will suggest that impairments in domain-specific functions may have wide-ranging developmental effects which mimic domain-general impairments. This may explain why ‘pure’ cases of developmental disorders are rare. The understanding of autism and dyslexia has been advanced by theories postulating failure of a specific mechanism against a background of unimpaired general processing. Impairment in the mechanisms underlying ‘theory of mind’ in autism, and ‘phonology’ in dyslexia, predict and explain the pattern of poor and good performance on a range of experimental and real-life tasks. However, existing accounts deal largely with the on-line effects of modular deficits, and can be criticised as not truly developmental. Here we attempt to trace developmental or down-stream effects of specific impairments in mentalising and phonological processing. We argue that these modules act as vital gatekeepers in development. Important in this process is the interaction of cognition with socio-cultural environment, an effect well-illustrated by cross-language differences in dyslexia. We claim that consideration of these developmental effects makes clear why postulating specific impairments may be sufficient for explaining more general deficits.  相似文献   
175.
The Assessment Battery for Communication (ABaCo) was introduced to evaluate pragmatic abilities in patients with cerebral lesions. The battery is organized into five evaluation scales focusing on separate components of pragmatic competence. In the present study, we present normative data for individuals 15-75?years of age (N = 300). The sample was stratified by age, sex, and years of education, according to Italian National Institute of Statistics indications in order to be representative of the general national population. Since performance on the ABaCo decreases with age and lower years of education, the norms were stratified for both age and education. The ABaCo is a valuable tool in clinical practice; the normative data provided here will enable clinicians to determine different kinds and specific levels of communicative impairments more precisely.  相似文献   
176.
A two‐process theory of the development of face processing predicted that newborns’ preferential orienting to face‐like patterns would be stronger in the temporal visual field than in the nasal. This prediction was confirmed in a previous study. While it is known that the newborn tendency to orient to face‐like patterns declines around 6 weeks of age, it is not known whether this is due to inhibition by cortical pathways or to the conflicting biases of cortical and subcortical pathways. In the present experiment we repeated the newborn study but with 4‐month‐olds and obtained results which were partially consistent with both the inhibition and the conflicting pathways accounts. We conclude that disappearance of the newborn tendency to orient to face‐like patterns is probably due to multiple factors.  相似文献   
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Schizophrenia spectrum has been associated with a disruption of the basic sense of self, which pertains, among others, the representation of one's own body. We investigated the impact of either implicit or explicit access to the representation of one's own body-effectors on bodily self-awareness, in first-episode schizophrenia (FES) patients and healthy controls (HCs). We contrasted their performance in an implicit self-recognition task (visual matching) and in an explicit self/other discrimination task. Both tasks employed participant's own and others' body-effectors. Concerning the implicit task, HCs were more accurate with their own than with others' body-effectors, whereas patients did not show such self-advantage. Regarding the explicit task, both groups did not exhibit a self-advantage, and patients showed a higher percentage of self-misattribution errors. Neither self/other nor implicit/explicit effects were found in both groups when processing inanimate-objects. We propose that FES patients suffer of a disturbed implicit sense of bodily self.  相似文献   
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Two experiments were used to examine how sexual media primes influence perceptions of an unknown target's sexual characteristics and ultimate ratings of the target's appeal. Participants were randomly assigned to one condition of a fully crossed 3 (control, weak sexual, or strong sexual media prime) × 3 (general, dating, or professional social networking profile) design. Participants were first exposed to a website that contained banner and sidebar advertisements that were either high in explicitness and emphasis on sexual intercourse, low in explicitness and emphasis on intercourse but still related to sex, or devoid of sexual cues altogether. These banner and sidebar areas constituted the prime. Participants then rated the sex-related qualities and overall appeal of a target represented by an online social media profile from Facebook.com, LiveJournal.com, BlackBookSingles.com, or LinkedIn.com. Findings supported the main hypothesis that sexual media enhance the perceived sexual characteristics attributed to the target represented in social media and that these characteristics significantly contribute to evaluating overall appeal. Both sexual media primes yielded effects that were robust across social network profiles. Results are discussed in light of literature that analyzes sexual content in media.  相似文献   
180.
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