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排序方式: 共有258条查询结果,搜索用时 15 毫秒
91.
Seppo Iso-Ahola 《Journal of motor behavior》2013,45(4):267-275
This study examined the effects of success and failure feedback on subsequent motor performance. Based upon the general motivation (or level-of-aspiration) hypothesis, initial success should lead to better subsequent performance than does initial failure, while the reverse prediction was derived from the cognitive dissonance theory. To test these rival hypotheses, two experiments were conducted on undergraduate male students (n =120) performing a motor maze task. Initial failure improved subjects’ subsequent performance, thus supporting the dissonance theory. However, this effect was observed only under low-ego-involving conditions, thereby suggesting that the effects of dissonance and ego involvement are interdependent. The findings were discussed in terms of motivational and informational/attributional effects of outcome feedback on motor performance. 相似文献
92.
Cerebellar neurophysiology in Gilles de la Tourette syndrome and its role as a target for therapeutic intervention
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Therapy resistance of approximately one‐third of patients with Gilles de la Tourette syndrome (GTS) requires consideration of alternative therapeutic interventions. The article demonstrates the role of the cerebellum in neuropsychiatric disorders and GTS in particular, specifically its role in functions relating to motor and cognitive symptoms. Certain circuits in the cerebellum have been shown to undergo learning‐induced changes during conditioning, with cells in the cortex of the cerebellum appearing to decrease their activity whilst those in deep nuclei seem to do the inverse. Evidence exists showing that abnormal excitability of the motor cortex via the cerebellum could be expected to participate in motor tics in GTS possibly due to aberrations in certain structures of involved circuits. The role of the cerebellum in learning and plasticity processes renders it a strategic and valuable structure to consider for brain stimulation when investigating potential treatment options for neuropsychiatric disorders such as GTS. This article puts forth the concept of using non‐invasive and invasive brain stimulation techniques as a novel platform for non‐pharmacological neuromodulation of GTS symptoms. 相似文献
93.
Nathaniel J. Blanco W. Todd Maddox Francisco Gonzalez‐Lima 《Journal of Neuropsychology》2017,11(1):14-25
Transcranial infrared laser stimulation is a new non‐invasive form of low‐level light therapy that may have a wide range of neuropsychological applications. It entails using low‐power and high‐energy‐density infrared light from lasers to increase metabolic energy. Preclinical work showed that this intervention can increase cortical metabolic energy, thereby improving frontal cortex‐based memory function in rats. Barrett and Gonzalez‐Lima (2013, Neuroscience, 230, 13) discovered that transcranial laser stimulation can enhance sustained attention and short‐term memory in humans. We extend this line of work to executive function. Specifically, we ask whether transcranial laser stimulation enhances performance in the Wisconsin Card Sorting Task that is considered the gold standard of executive function and is compromised in normal ageing and a number of neuropsychological disorders. We used a laser of a specific wavelength (1,064 nm) that photostimulates cytochrome oxidase – the enzyme catalysing oxygen consumption for metabolic energy production. Increased cytochrome oxidase activity is considered the primary mechanism of action of this intervention. Participants who received laser treatment made fewer errors and showed improved set‐shifting ability relative to placebo controls. These results suggest that transcranial laser stimulation improves executive function and may have exciting potential for treating or preventing deficits resulting from neuropsychological disorders or normal ageing. 相似文献
94.
We examined the effects of manipulating the intensity (i.e., volume) of music on engagement in vocal stereotypy in 2 children with autism. Noncontingent access to music decreased immediate engagement in vocal stereotypy for each participant, but it produced only marginal effects on subsequent engagement in the behavior (i.e., after withdrawal). Manipulating the intensity of music did not produce differential effects on immediate engagement in vocal stereotypy. The implications of the results and applications for future research are discussed. 相似文献
95.
Nicholas S. Holtzman Adam A Augustine Angela L. Senne 《Journal of research in personality》2011,(6):687-691
Symmetry on bilateral body parts indicates evolutionary fitness. Thus, traits positively associated with symmetry are thought to have conferred fitness in evolutionary history. Studies of the relationships between personality traits and symmetry have been narrow and have produced inconsistent findings. In our study, we relate both body symmetry and facial symmetry to 203 personality variables and to the Big Five. Our results demonstrate that (a) symmetry is related to personality traits beyond chance, (b) socially aversive traits, such as aggression and Neuroticism are positively related to symmetry, and (c) pro-social traits such as empathy and Agreeableness are negatively related to symmetry. Such trait levels may developmentally adjust in response to symmetry or may be inherited with symmetry (i.e., dual inheritance). 相似文献
96.
Roberta Delasta Lazzari Fabiano Politti Stefany Ferreira Belina Luanda André Collange Grecco Cibele Almeida Santos Arislander Jonathan Lopes Dumont 《Journal of motor behavior》2017,49(3):329-336
The authors' aim was to investigate the effects of continuous transcranial direct current stimulation (tDCS) combined with virtual reality training on static and functional balance in children with cerebral palsy (CP). Twenty children with CP (6 girls and 14 boys; M age = 7 years 6 months ± 2 years) were randomly allocated to two groups. The experimental group received active tDCS and the control group received sham stimulation during the 10 sessions of virtual reality mobility training protocols. The children were evaluated on 3 occasions (preintervention, postintervention, and 1-month follow-up). Static balance was evaluated using a force plate under 4 conditions: feet on force plate with (a) eyes open and (b) with eyes closed, and feet on foam mat with (c) eyes open and (d) with eyes closed. Functional balance was evaluated using the Pediatric Balance Scale and the Timed Up and Go Test. The analyses demonstrated statistically significant postintervention and follow-up effects favoring the experimental group over the control group with regard to the Pediatric Balance Scale, Timed Up and Go Test, and area of oscillation of the center of pressure when standing on the force plate with eyes open. The present findings suggest that tDCS can potentiate the effects of virtual reality training on static and functional balance among children with CP. 相似文献
97.
Jonathan E. Friedel William B. DeHart Amy L. Odum 《Journal of the experimental analysis of behavior》2017,107(3):354-368
Aversive control is an important yet understudied process of learning. One reason aversive control may be relatively understudied is ethical concerns about painful stimuli (e.g., electric shock). High decibel broad‐band noise and 22‐kHz vocalizations both demonstrably affect rodent behavior while not necessarily being painful. The goal of this study was to determine if 100‐dB 22‐kHz‐pure tones were differentially more effective in reducing operant response rates in rats. We examined whether 22‐kHz pure tones would function as aversive stimuli, specifically as positive punishers. The effects of response‐dependent as well as continuously presented 22‐kHz and 1‐kHz tones on rate of response maintained by variable interval 30‐s food deliveries were assessed across several conditions. We found that response rates were lower when tones were presented response dependently than when tones were presented continuously throughout a session. We also found that the lower response rates obtained with response‐dependent 22‐kHz tones were not significantly different from response rates obtained with response‐dependent 1‐kHz tones. The primary conclusion of this experiment is that both 1‐kHz and 22‐kHz tones functioned as punishers, but that the 22‐kHz tones were not differentially more effective in reducing response rate. 相似文献
98.
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100.
Philip W. Brownjohn Rebekah L. Blakemore Jonathan A. Fox 《Journal of motor behavior》2019,51(3):293-301
Paired muscle stimulation is used clinically to facilitate the performance of motor tasks for individuals with motor dysfunction. However, the optimal temporal relationship between stimuli for enhancing movement remains unknown. We hypothesized that synchronous, muscle stimulation would increase the extent to which stimulated muscles are concurrently prepared for movement. We validated a measure of muscle-specific changes in corticomotor excitability prior to movement. We used this measure to examine the preparation of the first dorsal interosseous (FDI), abductor digiti minimi (ADM), abductor pollicis brevis (APB) muscles prior to voluntary muscle contractions before and after paired muscle stimulation at four interstimulus intervals (0, 5, 10, and 75 ms). Paired muscle stimulation increased premovement excitability in the stimulated FDI, but not in the ADM muscle. Interstimulus interval was not a significant factor in determining efficacy of the protocol. Paired stimulation, therefore, did not result in a functional association being formed between the stimulated muscles. Somatosensory potentials evoked by the muscle stimuli were small compared to those commonly elicited by stimulation of peripheral nerves, suggesting that the lack of functional association formation between muscles may be due to the small magnitude of afferent volleys from the stimulated muscles, particularly the ADM, reaching the cortex. 相似文献