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Stimulation of the Social Brain Improves Perspective Selection in Older Adults: A HD-tDCS Study
- Source :
- Cognitive, Affective & Behavioral Neuroscience
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- There is evidence for dissociable, causal roles for two key social brain regions in young adults. Specifically, the right temporoparietal junction (rTPJ) is associated with embodied perspective taking, whereas the dorsomedial prefrontal cortex (dmPFC) is associated with the integration of social information. However, it is unknown whether these causal brain-behaviour associations are evident in older adults. Fifty-two healthy older adults were stratified to receive either rTPJ or dmPFC anodal high-definition transcranial direct current stimulation in a sham-controlled, double-blinded, repeated-measures design. Self-other processing was assessed across implicit and explicit level one (line-of-sight) and level two (embodied rotation) visual perspective taking (VPT) tasks, and self-other encoding effects on episodic memory. Both rTPJ and dmPFC stimulation reduced the influence of the alternate perspective during level one VPT, indexed by a reduced congruency effect (difference between congruent and incongruent perspectives). There were no stimulation effects on level two perspective taking nor self-other encoding effects on episodic memory. Stimulation to the rTPJ and dmPFC improved perspective selection during level one perspective taking. However, dissociable effects on self-other processing, previously observed in young adults, were not identified in older adults. The results provide causal evidence for age-related changes in social brain function that requires further scrutinization. Supplementary Information The online version contains supplementary material available at 10.3758/s13415-021-00929-2.
- Subjects :
- Aging
Cognitive Neuroscience
medicine.medical_treatment
Temporoparietal junction
Prefrontal Cortex
Stimulation
Transcranial Direct Current Stimulation
050105 experimental psychology
Young Adult
03 medical and health sciences
Behavioral Neuroscience
0302 clinical medicine
Social cognition
medicine
Humans
0501 psychology and cognitive sciences
Episodic memory
Aged
Self-reference effect
Transcranial direct-current stimulation
05 social sciences
Perspective (graphical)
Brain
Right temporoparietal junction
medicine.anatomical_structure
Embodied cognition
Dorsomedial prefrontal cortex
Perspective taking
Psychology
030217 neurology & neurosurgery
Research Article
Cognitive psychology
Subjects
Details
- ISSN :
- 1531135X and 15307026
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Cognitive, Affective, & Behavioral Neuroscience
- Accession number :
- edsair.doi.dedup.....443bdaa8b6b661d68741b5420ffa1697