scholarly journals Theta Burst Stimulation Enhances Connectivity of the Dorsal Attention Network in Young Healthy Subjects: An Exploratory Study

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Lubomira Anderkova ◽  
Dominik Pizem ◽  
Patricia Klobusiakova ◽  
Martin Gajdos ◽  
Eva Koritakova ◽  
...  

We examined effects of theta burst stimulation (TBS) applied over two distinct cortical areas (the right inferior frontal gyrus and the left superior parietal lobule) on the Stroop task performance in 20 young healthy subjects. Neural underpinnings of the behavioral effect were tested using fMRI. A single session of intermittent TBS of the left superior parietal lobule induced certain cognitive speed enhancement and significantly increased resting-state connectivity of the dorsal attention network. This is an exploratory study that prompts further research with multiple-session TBS in subjects with cognitive impairment.

2009 ◽  
Vol 40 (01) ◽  
Author(s):  
AS Sarfeld ◽  
M Ameli ◽  
JT Teo ◽  
S Diekhoff ◽  
G Fink ◽  
...  

2008 ◽  
Vol 28 (4) ◽  
pp. 822-828 ◽  
Author(s):  
Rocco Agostino ◽  
Ennio Iezzi ◽  
Loredana Dinapoli ◽  
Antonio Suppa ◽  
Antonella Conte ◽  
...  

Author(s):  
Sebastian Walther ◽  
Maribel Kunz ◽  
Manuela Müller ◽  
Caroline Zürcher ◽  
Irena Vladimirova ◽  
...  

Abstract Social interaction is impaired in schizophrenia, including the use of hand gestures, which is linked to poor social perception and outcome. Brain imaging suggests reduced neural activity in a left-lateralized frontoparietal network during gesture preparation; therefore, gesturing might be improved through facilitation of left hemispheric brain areas or via disruption of interhemispheric inhibition from the right homolog. This study tested whether repetitive transcranial magnetic stimulation (rTMS) protocols would improve gesture performance in schizophrenia. This randomized, placebo-controlled, double-blind, crossover trial applied 3 different protocols of rTMS separated by 48 h. Twenty right-handed schizophrenia patients and 20 matched healthy controls received facilitatory intermittent theta burst stimulation (iTBS) over the left inferior frontal gyrus (IFG), inhibitory continuous theta burst stimulation (cTBS) over right inferior parietal lobe (IPL), and placebo over left IPL in randomized order. Primary outcome was change in the test of upper limb apraxia (TULIA), rated from video recordings of hand gesture performance. Secondary outcome was change in manual dexterity using the coin rotation task. Participants improved on both tasks following rTMS compared with baseline. Only patients improved gesture performance following right IPL cTBS compared with placebo (P = .013). The results of the coin rotation parallel those of the TULIA, with improvements following right IPL cTBS in patients (P = .001). Single sessions of cTBS on the right IPL substantially improved both gesture performance accuracy and manual dexterity. The findings point toward an inhibition of interhemispheric rivalry as a potential mechanism of action.


2017 ◽  
Vol 10 (1) ◽  
pp. 91-98 ◽  
Author(s):  
Tuo Lin ◽  
Lisheng Jiang ◽  
Zulin Dou ◽  
Cheng Wu ◽  
Feng Liu ◽  
...  

2021 ◽  
Vol 10 (11) ◽  
pp. 2449
Author(s):  
Virginie Moulier ◽  
Christian Gaudeau-Bosma ◽  
Fanny Thomas ◽  
Clémence Isaac ◽  
Maxence Thomas ◽  
...  

Background: Intermittent theta burst stimulation (iTBS) is a form of repetitive transcranial magnetic stimulation that has shown to be effective in treatment-resistant depression. Through studying the effect of iTBS on healthy subjects, we wished to attain a greater understanding of its impact on the brain. Our objective was to assess whether 10 iTBS sessions altered the neural processing of emotional stimuli, mood and brain anatomy in healthy subjects. Methods: In this double-blind randomized sham-controlled study, 30 subjects received either active iTBS treatment (10 sessions, two sessions a day) or sham treatment over the left dorsolateral prefrontal cortex. Assessments of mood, structural magnetic resonance imaging (MRI) and functional MRI (fMRI) were performed before and after iTBS sessions. During the fMRI, three different categories of stimuli were presented: positive, negative and neutral photographs. Results: This study showed that, during the presentation of negative stimuli (compared with neutral stimuli), 10 sessions of iTBS increased activity in the left anterior insula. However, iTBS did not induce any change in mood, regional gray matter volume or cortical thickness. Conclusions: iTBS modifies healthy subjects’ brain activity in a key region that processes emotional stimuli. (AFSSAPS: ID-RCB 2010A01032-37).


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