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21.
Names are thought to be represented in the brain differently from common nouns. Although this idea is supported by both theoretical and empirical arguments, the brain areas that are relevant for the recognition of personal names-and in particular the extent of right hemisphere involvement-remain controversial. We investigated the hypothesis that, unlike common nouns, personal names are represented preferentially by the right hemisphere (D. Van Lancker, 1991; D. Van Lancker et al., 1991; C. Ohnesorge & D. Van Lancker, 1999). Participants performed lexical decisions to common nouns and pseudowords (Experiment 1) or familiarity decisions to personal names (Experiment 2), which were presented briefly to the left or right visual fields. Asymmetries were small or absent for both pseudowords and unfamiliar names. For familiar names, both reaction times and error rates revealed strong advantages for the right visual field/left hemisphere (RVF/LH), which were comparable to the asymmetries for nouns. Familiar personal names may be represented by brain systems that differ from those representing common nouns, but current evidence does not suggest a distinct contribution of the right hemisphere to these brain systems. 相似文献
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Mohr C Graves RE Gianotti LR Pizzagalli D Brugger P 《Journal of psycholinguistic research》2001,30(5):475-483
An abnormal facilitation of the spreading activation within semantic networks is thought to under-lie schizophrenics' remote associations and referential ideas. In normal subjects, elevated magical ideation (MI) has also been associated with a style of thinking similar to that of schizotypal subjects. We thus wondered whether normal subjects with a higher MI score would judge "loose associations" as being more closely related than do subjects with a lower MI score. In two experiments, we investigated whether judgments of the semantic distance between stimulus words varied as a function of MI. In the first experiment, random word pairs of two word classes, animals and fruits, were presented. Subjects had to judge the semantic distance between word pairs. In the second experiment, sets of three words were presented, consisting of a pair of indirectly related, or unrelated nouns plus a third noun. Subjects had to judge the semantic distance of the third noun to the word pair The results of both experiments showed that higher MI subjects considered unrelated words as more closely associated than did lower MI subjects. We conjecture that for normal subjects high on MI "loose associations" may not be loose after all. We also note that the tendency to link uncommon, nonobvious, percepts may not only be the basis of paranormal and paranoid ideas of reference, but also a prerequisite of creative thinking. 相似文献
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Quadflieg S Wendt B Mohr A Miltner WH Straube T 《Behaviour research and therapy》2007,45(12):3096-3103
Studies using facial emotional expressions as stimuli partially support the assumption of biased processing of social signals in social phobia. This pilot study explored for the first time whether individuals with social phobia display a processing bias towards emotional prosody. Fifteen individuals with generalized social phobia and fifteen healthy controls (HC) matched for gender, age, and education completed a recognition test consisting of meaningless utterances spoken in a neutral, angry, sad, fearful, disgusted or happy tone of voice. Participants also evaluated the stimuli with regard to valence and arousal. While these ratings did not differ significantly between groups, analysis of the recognition test revealed enhanced identification of sad and fearful voices and decreased identification of happy voices in individuals with social phobia compared with HC. The two groups did not differ in their processing of neutral, disgust, and anger prosody. 相似文献
24.
A study was conducted to determine the effects of vocal cues on judgements of dominance in an interpersonal influence context. Physical measures of human vocal cues and participant ratings of dominance were obtained from videotapes of actors delivering short influence messages. After controlling for linguistic and visual content of messages, results indicated that mean amplitude and amplitude standard deviation were positively associated with dominance judgments, whereas speech rate was negatively associated with dominance judgments. An unexpected interaction revealed that mean fundamental frequency (F0) was positively associated with dominance judgments for male speakers but not significantly associated with dominance judgments for female speakers. F0 standard deviation was not significantly associated with dominance judgments. Results support the conclusion that dominance judgments are inferred from multiple sources of information and that some vocal markers of dominance are more influential than others. 相似文献
25.
Alena van Bömmel Song Song Piotr Majer Peter N. C. Mohr Hauke R. Heekeren Wolfgang K. Härdle 《Psychometrika》2014,79(3):489-514
Decision making usually involves uncertainty and risk. Understanding which parts of the human brain are activated during decisions under risk and which neural processes underly (risky) investment decisions are important goals in neuroeconomics. Here, we analyze functional magnetic resonance imaging (fMRI) data on 17 subjects who were exposed to an investment decision task from Mohr, Biele, Krugel, Li, and Heekeren (in NeuroImage 49, 2556–2563, 2010b). We obtain a time series of three-dimensional images of the blood-oxygen-level dependent (BOLD) fMRI signals. We apply a panel version of the dynamic semiparametric factor model (DSFM) presented in Park, Mammen, Wolfgang, and Borak (in Journal of the American Statistical Association 104(485), 284–298, 2009) and identify task-related activations in space and dynamics in time. With the panel DSFM (PDSFM) we can capture the dynamic behavior of the specific brain regions common for all subjects and represent the high-dimensional time-series data in easily interpretable low-dimensional dynamic factors without large loss of variability. Further, we classify the risk attitudes of all subjects based on the estimated low-dimensional time series. Our classification analysis successfully confirms the estimated risk attitudes derived directly from subjects’ decision behavior. 相似文献
26.
Forss Sofia Ingrid Fredrika Motes-Rodrigo Alba Dongre Pooja Mohr Tecla van de Waal Erica 《Animal cognition》2022,25(3):671-682
Animal Cognition - The cognitive mechanisms causing intraspecific behavioural differences between wild and captive animals remain poorly understood. Although diminished neophobia, resulting from a... 相似文献
27.
Physical activity is associated with many benefits, but persons with multiple sclerosis (MS) are less physically active than the general population. There is a critical need for research on methods of increasing and sustaining the physical activity levels of this population. This randomized controlled trial examined the efficacy of an Internet-delivered and theory-based behavioral intervention that was supplemented with video coaching for increasing and sustaining physical activity over time in persons with MS. Physically inactive, ambulatory persons with MS (N?=?45) were randomly assigned to intervention (n?=?22) or control (n?=?23) conditions and completed a battery of questionnaires before, after, and three months after a 12-week intervention period. Data analyses were conducted in PASW 18.0. Partial eta squared ([Formula: see text]) effect size indicated that there was a large, statistically significant condition-by-time interaction on physical activity ([Formula: see text]). Cohen's d effect sizes indicated that the intervention group had a large increase in physical activity after the 12-week trial (d?=?.98) that was sustained over a three-month follow-up (d?=?.79). The current study supports the efficacy of a behavioral intervention for increasing and sustaining physical activity in a sample of persons with MS. 相似文献
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Margaret C. Campbell Gina S. Mohr Peeter W.J. Verlegh 《Journal of Consumer Psychology》2013,23(4):483-495
While sponsorship disclosure is proposed as a remedy for covert marketing, i.e., tactics such that the persuasive nature of the communication is not clear to consumers, little is known about whether or when disclosures prompt consumers to correct for persuasion. Three experiments reveal that covert marketing, in the form of subtle product placements, can increase brand recall and attitudes but that both instructions to avoid influence and mere disclosure of sponsorship can lead to correction. The first experiment demonstrates that consumers are able to correct both brand attitudes and stated recall when there are instructions to avoid influence. The following two experiments show that mere sponsorship disclosure can evoke use of persuasion knowledge for correction. However, disclosure timing differentially influences correction for recall and attitudes. Disclosure prior to exposure to the covert marketing tactic leads only to correction for effects on recall; attitude is as high with a prior disclosure as with placement with no disclosure. Disclosure after placement provides general correction of the impact of the covert marketing tactic on both recall and attitudes. 相似文献