Effects of non-invasive brain stimulation on visual perspective taking: A meta-analytic study

Author(s)
Yuan-Wei Yao, Vivien Chopurian, Lei Zhang, Claus Lamm, Hauke R. Heekeren
Abstract

Visual perspective taking (VPT) is a critical ability required by complex social interaction. Non-invasive brain stimulation (NIBS) has been increasingly used to examine the causal relationship between brain activity and VPT, yet with heterogeneous results. In the current study, we conducted two meta-analyses to examine the effects of NIBS of the right temporoparietal junction (rTPJ) or dorsomedial prefrontal cortex (dmPFC) on VPT, respectively. We performed a comprehensive literature search to identify qualified studies and computed the standardized effect size (ES) for each combination of VPT level (Level-1: visibility judgment; Level-2: mental rotation) and perspective (self and other). Thirteen studies (rTPJ: 12 studies, 23 ESs; dmPFC: 4 studies, 14 ESs) were included in the meta-analyses. Random-effects models were used to generate the overall effects. Subgroup analyses for distinct VPT conditions were also performed. We found that rTPJ stimulation significantly improved participants' visibility judgment from the allocentric perspective, whereas its effects on other VPT conditions are negligible. Stimulation of dmPFC appeared to influence Level-1 performance from the egocentric perspective, although this finding was only based on a small number of studies. Notably, contrary to some theoretical models, we did not find strong evidence that these regions are involved in Level-2 VPT with a higher requirement of mental rotation. These findings not only advance our understanding of the causal roles of the rTPJ and dmPFC in VPT, but also reveal that the efficacy of NIBS on VPT is relatively small. Additionally, researchers should also be cautious about the potential publication bias and selective reporting.

Organisation(s)
Department of Cognition, Emotion, and Methods in Psychology, Vienna Cognitive Science Hub
External organisation(s)
Freie Universität Berlin (FU), Charité – Universitätsmedizin Berlin, Humboldt-Universität zu Berlin
Journal
NeuroImage
Volume
242
No. of pages
9
ISSN
1053-8119
DOI
https://doi.org/10.1016/j.neuroimage.2021.118462
Publication date
11-2021
Peer reviewed
Yes
Austrian Fields of Science 2012
501014 Neuropsychology
Keywords
ASJC Scopus subject areas
Neurology, Cognitive Neuroscience
Portal url
https://ucris.univie.ac.at/portal/en/publications/effects-of-noninvasive-brain-stimulation-on-visual-perspective-taking-a-metaanalytic-study(4bd1df70-52f9-4819-ad28-c8e361892a61).html