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91.
Sakae DY Pereira LO da Cunha IC de Lima TC Paschoalini MA Faria MS 《Neurobiology of learning and memory》2008,90(2):455-459
The aim of the present study was to evaluate the occurrence of fear sensitization in rats previously treated with an inhibitor of the NO syntheses and submitted to Trial1/Trial2 plus-maze (PM) procedure. Male Wistar rats received a systemic treatment with N(omega)-nitro-L-Arginine-methyl ester (L-NAME; 5, 10 or 50 mg kg(-1)) and were submitted to PM Trial1. In the following day the animals were re-exposed to the PM with no drug administration (Trial2). Some standards spatial-temporal measures, such as the percentage of entries (% Open arm entries) and time spent (% Open arm time) in the open arms and risk assessment frequency were recorded and used to estimate the animal level of fear sensitization in PM Trial2. The results showed that animals receiving L-NAME (50 mg kg(-1)) displayed increased % Open arm entries and % Open arm time in Trial2 in relation to the group receiving 0.9% saline, which is compatible with impaired fear/anxiety acquisition during Trial1/Trial2 PM procedure. In addition, rats treated with L-NAME (50 mg kg(-1)) exhibited low level of risk assessment in Trial2 in relation to the group treated with 0.9% saline, which indicates low level of fear/anxiety during PM re-exposure. The number of entries into the enclosed arms was not changed by any L-NAME treatment, which suggests no bias of the drug treatments on animal locomotor activity. The data suggest that NO synthesis may mediate the fear sensitization process in the PM. 相似文献
92.
Ferran Casas Germà Coenders Robert A. Cummins Mònica González Cristina Figuer Sara Malo 《Journal of Happiness Studies》2008,9(2):197-205
The relationship between the subjective well-being of parents and their own 12–16-year-old children was explored in a Spanish
sample of N = 266 families. A positive relationship was expected due to both a shared environment and the possibility of the genetic
transmission of subjective well-being ‘set-points’. A positive significant relationship was found for the summated scale of
satisfaction domains forming the Personal Well-being Index, and for the specific domains of health and security for the future.
However, no relationship was found for the other five domains that make up this Index or for satisfaction with life as a whole.
We conclude while these results provide some evidence for the expected influence of a shared environment, they have failed
to provide evidence for high heritability of set-points for subjective well-being. 相似文献
93.
The present work sets out to study the internal structure of the Torrance Test of Creative Thinking (TTCT) and to establish standardised scores that will enable the test to be used in both a diagnostic and educational context. 649 students (319 girls and 330 boys), aged 5 to 12 years from various schools in Murcia and Alicante (SE Spain), took part in the study. The findings suggest that the psychometric characteristics of TTCT are satisfactory, and its internal structure can be attributed to three factors that are responsible for a high percentage of the variance (73.8%). The standardised score tables, which are provided for first time in this context, will be useful in the evaluation of creativity and the identification of students with high intellectual abilities. 相似文献
94.
Cristina Botella Veronica Guillen Rosa M. Banos Azucena García-Palacios Maria J. Gallego Mariano Alcaniz 《Cognitive and behavioral practice》2007,14(1):46-57
This work presents a self-help, Internet-based telepsychology program for the treatment of public speaking fears. The system is comprised of 3 parts: The assessment protocol gives the patient information about his or her problem (i.e., amount of interference it creates in his or her life, severity, degree of fear and avoidance). The system also includes a structured treatment protocol, organized into separate blocks, reflecting the patient’s progress. This ensures that the patient does not skip any steps in the treatment (something quite common in traditional self-help manuals), which provides more control over the process. The treatment protocol is a cognitive-behavioral program that provides exposure to the feared situation using videos of real audiences. Finally, the control protocol assesses treatment efficacy, not only at closure, but also at every intermediate step. Efficacy data from 12 social phobia patients are presented from pretreatment to posttreatment and at 1-month follow-up. These preliminary data support the efficacy of our telepsychology program for the treatment of fear of public speaking. This is a preliminary work in a promising research path that examines the possibility of using the Internet for the treatment of psychological disorders. 相似文献
95.
The goal of this work was to analyze the social representations that women of three different age groups had about aging, rejuvenating, and methods of rejuvenation. The research was performed in S?o Paulo between 2004 and 2005. The participants of this research were three groups of women of different ages: 19 to 24 years, 25 to 35 years, and over 60 years. The data were collected by the focus group technique. Data was analyzed using the lexical analysis software ALCESTE 4.5. The main results show a social representation of aging centered on losses and gains. The subjects appraised the possibility of using rejuvenating methods only when it was extremely necessary, because of the health risks that most of them involve. The three groups agreed about natural methods of rejuvenating instead of resorting to invasive methods. 相似文献
96.
In tool use, the intended external goals have to be transformed into bodily movements by taking into account the target-to-movement
mapping implemented by the tool. In bimanual tool use, this mapping may depend on the part of the tool that is operated and
the effector used (e.g. the left and right hand at the handle bar moving in opposite directions in order to generate the same
bicycle movement). In our study, we investigated whether participants represent the behaviour of the tool or only the effector-specific
mapping when using two-handed tools. In three experiments, participants touched target locations with a two-jointed lever,
using either the left or the right hand. In one condition, the joint of the lever was constant and switching between hands
was associated with switching the target-to-movement-mapping, whereas in another condition, switching between hands was associated
with switching the joint, but the target-to-movement-mapping remained constant. Results indicate pronounced costs of switching
hands in the condition with constant joint, whereas they were smaller with constant target-to-movement mapping. These results
suggest that participants have tool-independent representations of the effector-specific mappings.
相似文献
Arvid HerwigEmail: |
97.
Luisa Sartori Cristina Becchio Bruno G. Bara Umberto Castiello 《Consciousness and cognition》2009,18(3):766-772
The aim of the present study was to investigate the effects of communicative intention on action. In Experiment 1 participants were requested to reach towards an object, grasp it, and either simply lift it (individual condition) or lift it with the intent to communicate a meaning to a partner (communicative condition). Movement kinematics were recorded using a three-dimensional motion analysis system. The results indicate that kinematics was sensitive to communicative intention. Although the to-be-grasped object remained the same, movements performed for the ‘communicative’ condition were characterized by a kinematic pattern which differed from those obtained for the ‘individual’ condition. These findings were confirmed in a subsequent experiment in which the communicative condition was compared to a control condition, in which the communicative exchange was prevented. Results are discussed in terms of cognitive pragmatics and current knowledge on how social behavior shapes action kinematics. 相似文献
98.
99.
Lexical production in children with Down syndrome (DS) was investigated by examining spoken naming accuracy and the use of spontaneous gestures in a picture naming task. Fifteen children with DS (range 3.8-8.3 years) were compared to typically developing children (TD), matched for chronological age and developmental age (range 2.6-4.3 years). Relative to TD children, children with DS were less accurate in speech (producing a greater number of unintelligible answers), yet they produced more gestures overall and of these a significantly higher percentage of iconic gestures. Furthermore, the iconic gestures produced by children with DS accompanied by incorrect or no speech often expressed a concept similar to that of the target word, suggesting deeper conceptual knowledge relative to that expressed only in speech. 相似文献
100.
Programming tool-use actions 总被引:2,自引:0,他引:2
Massen C Prinz W 《Journal of experimental psychology. Human perception and performance》2007,33(3):692-704
When humans plan to execute a tool-use action, they can only specify the bodily movement parameters by taking into account the external target or goal of the tool-use action and the target-movement mapping implemented by the tool. In this study, the authors used the movement precuing method to investigate how people prepare for actions made with tools. More specifically, they asked whether people would be able to specify the spatial target and the target-movement mapping of the tool-use action independently of each other, and to what degree they would be able to prepare these components in advance. In 3 experiments, they precued either the target or the target-movement mapping of tool-use actions involving either a compatible or an incompatible target-movement mapping. Results indicate that participants benefit from partial advance information about the target-movement mapping, whereas no significant effects were found for precuing the spatial target of the action. These results occurred regardless of whether the target-movement mapping was compatible or incompatible and provide evidence for the notion that the target-movement mapping of a tool-use action is part of its cognitive representation. 相似文献