TDCS effects in basic symbolic number magnitude processing are not significantly lateralized.

ABSTRACT: Functional lateralization was previously established for various cognitive domains-but not for number processing. Although numbers are considered to be bilaterally represented in the intraparietal sulcus (IPS), there are some indications of different functional roles of the left vs. right IPS in processing number pairs with small vs. large distance, respectively. This raises the question whether number size plays a distinct role in the lateralization within the IPS. In our preregistered study, we applied anodal transcranial direct current stimulation (tDCS) over the left vs. right IPS to investigate the effect of stimulation as compared to sham on small vs. large distance, in both single-digit and two-digit number comparison. We expected that anodal tDCS over the left IPS facilitates numbe

SUBMITTER: Bahreini N 

PROVIDER: S-EPMC10700326 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature