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Clinical Trial Summary

The purpose of this study is to investigate the effects of repetitive transcranial magnetic stimulation (rTMS) over the dorsolateral prefrontal cortex (DLPFC) on language production.


Clinical Trial Description

Background:

Several studies investigating healthy or clinical populations have shown that (r)TMS applied over the dorsolateral prefrontal cortex (DLPFC) has an effect on language-related processes such as verbal working memory (Osaka et al., 2007), sentence comprehension (Cotelli et al., 2011) and language switching (Holtzheimer et al., 2005, Nardone et al., 2011).

Clinical observations and neuroimaging studies seem to confirm the role of executive functions and frontal structures in language processing in monolingual and bilingual subjects (e.g. Fabbro et al., 2000, Abutalebi & Green 2007). However, only few studies investigated the effects of modulation of cognitive control-networks on lexical access.

Aim and procedure:

The study will investigate the role of the DLPFC and executive functioning in L1 and L2 language processing. The core question is whether rTMS over the DLPFC will influence lexical access and language production.

Each participant will take part in two sessions: 1. rTMS session 2. Sham rTMS session. After the application of rTMS/Sham rTMS, the participants will conduct two language tasks (translation, picture naming) and a non-verbal task, while the EEG is recorded. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02840396
Study type Interventional
Source University of Fribourg
Contact
Status Completed
Phase N/A
Start date March 2016
Completion date July 2017

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