Descending volleys evoked by transcranial magnetic stimulation of the brain in conscious humans: effects of coil shape

Phonologically similar items (mell, rell, gell) are more difficult to remember than dissimilar items (shen, floy, stap), likely because of mutual interference of the items in the phonological store. Low-frequency transcranial magnetic stimulation (TMS), guided by functional magnetic resonance imaging (fMRI) was used to disrupt this phonological confusion by stimulation of the left inferior parietal (LIP) lobule. Subjects received TMS or placebo stimulation while remembering sets of phonologically similar or dissimilar pseudo-words. Consistent with behavioral performance of patients with neurological damage, memory for phonologically similar, but not dissimilar, items was enhanced following TMS relative to placebo stimulation. Stimulation of a control region of the brain did not produce any changes in memory performance. These results provide new insights into how the brain processes verbal information by establishing the necessity of the inferior parietal region for optimal phonological storage. A mechanism is proposed for how TMS reduces phonological confusion and leads to facilitation of phonological memory.

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Improved Field Localization in Transcranial Magnetic Stimulation of the Brain With the Utilization of a Conductive Shield Plate in the Stimulator

IEEE Transactions on Biomedical Engineering ◽

10.1109/tbme.2006.870244 ◽

2006 ◽

Vol 53 (4) ◽

pp. 720-725 ◽

Cited By ~ 45

Author(s):

D.-H. Kim ◽

G.E. Georghiou ◽

C. Won

Keyword(s):

Transcranial Magnetic Stimulation ◽

Magnetic Stimulation ◽

Field Localization ◽

The Brain ◽

Stimulation Of

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Effect of low-intensity magnetic stimulation on human attention span-Experimental Study

10.31219/osf.io/nxvq4 ◽

2019 ◽

Author(s):

roohollah basatnia

Keyword(s):

Experimental Study ◽

Transcranial Magnetic Stimulation ◽

Human Brain ◽

Magnetic Stimulation ◽

Experimental Setup ◽

Low Intensity ◽

Human Attention ◽

The Individual ◽

The Brain ◽

Stimulation Of

Attention is a cognitive and behavioral process that selectively focuses on the individual aspects of subjective or objective information. It has been shown that transcranial magnetic stimulation of the brain, or rTMS, can affect the networks of attention in the brain of some peoples. In this study we report the effects of our experimental setup(Beta-1 Device) on human brain. Current research shows the influences of our setup on human concentration and attention. Respected to the low number of sessions of this stimulation using the beta1 device and the significant effect of this stimulation, the beta1 system can be helpful in the treatment or improvement of attention deficit disorders. It is suggested that the effectiveness of this machine in increasing attention and focus should be studied by repeating this research and increasing the number of magnetic stimulation sessions of the brain. Due to the results of the previous researches in the stimulation of the DLPFC area and its relevance with the recovery of depression, the effect of stimulation of brain by this device on depression is expected. In the present study, the final scores of attention and visual and auditory focus in the IVA test were considered. It seems that repeating the research and measuring the different components of attention mentioned in this test can illuminate the dark angles of the present study.

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