Abstract
Spatial working memory has been extensively investigated with different tasks, treatments, and analysis tools. Several studies suggest that low frequency of the repetitive transcranial magnetic stimulation (rTMS) applied to the parietal cortex may influence spatial working memory (SWM). However, it is not yet known if after low-frequency rTMS applied to the superior parietal cortex, according to Pz electroencephalography (EEG) electrode, would change the orientation interpretation about the vertical and horizontal axes coordinates in an SWM task. The current study aims at filling this gap and obtains a better understanding of the low-frequency rTMS effect in SWM. In this crossover study, we select 20 healthy subjects in two conditions (control and 1-Hz rTMS). The subjects performed an SWM task with two random coordinates. Our results presented that low-frequency rTMS applied over the superior parietal cortex may influence the SWM to lead to a larger distance of axes interception point (p < 0.05). We conclude that low-frequency rTMS over the superior parietal cortex (SPC) changes the SWM performance, and it has more predominance in horizontal axis.
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Participants signed the free and informed consent term. The protocol was approved by the ethics committee of Federal University of Rio de Janeiro (no. 520.189).
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Ribeiro, J.A., Marinho, F.V.C., Rocha, K. et al. Low-frequency rTMS in the superior parietal cortex affects the working memory in horizontal axis during the spatial task performance. Neurol Sci 39, 527–532 (2018). https://doi.org/10.1007/s10072-017-3243-8
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DOI: https://doi.org/10.1007/s10072-017-3243-8