نتایج جستجو برای: transcranial
تعداد نتایج: 19274 فیلتر نتایج به سال:
A transcranial channel is an interface between the skull and brain; it consists of a biocompatible and highly conductive material that helps convey the current induced by transcranial direct current stimulation (tDCS) to the target area. However, it has been proposed only conceptually, and there has been no concrete study of its efficacy. In this work, we conducted a computational investigation...
Several techniques and protocols of non-invasive transcranial brain stimulation (NIBS), including transcranial magnetic and electrical stimuli, have been developed in the past decades. Non-invasive transcranial brain stimulation may modulate cortical excitability outlasting the period of non-invasive transcranial brain stimulation itself from several minutes to more than one hour. Quite a few l...
introduction: neural stimulation is a promising new technology for the treatment of medically-intractable seizures. transcranial magnetic stimulation (tms) is a simple, non-invasive, low cost technique which is widely used in neurophysiology. in a few studies that have been performed at different frequencies the therapeutic effects of this technique were not obvious. repetition of low frequenc...
background: major depression is a common disorder with great social and individual burdens. transcranial sonography (tcs) is a useful and noninvasive measure for assessment of normal and impaired brain parenchyma. the brainstem raphe nuclei are in close association with dorsocaudal limbic system and plays an important role in depression. in this study we compared the echogenicity of the raphe n...
background: the goal of this study was to determine the reliability of tcd in evaluation of vertebrobasilar arteries in comparison with brain mra in patients suffering from acute vertebrobasilar stroke. methods: samples were patients with definite clinical diagnosis of vertebrobasilar stroke. for all patients brain mri, mra and tcd were performed during the first 48 hours of admission. basilar ...
conclusions when itbs was applied over the primary motor cortex, it significantly improved manual dexterity, but had no significant effect on the hand motor imagery ability in ms patients. results itbs group showed a reduction in the time required to complete the 9hpt (mean difference = -3.05, p = 0.002), and an increase in the number of blocks transferred in one minute in the bbt (mean differe...
The effectiveness of repetitive transcranial magnetic stimulation therapy in obsessive compulsive disorder is indefinite, although it has been shown to be helpful in depression in many studies. Six cases of obsessive compulsive disorder who received repetitive transcranial magnetic stimulation therapy are presented. Afterwards, the literature about the effectiveness of transcranial magnetic sti...
Background & Aims: This main aim of this study is to investigate the effectiveness of Transcranial Alternating Current Stimulation (tACS) on attention in students with specific learning disorder. Materials & Methods: Twenty students of elementary school with specific learning disorders were selected through purposive sampling method and randomly divided into two groups, the experimental and co...
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