Research on social influence has focused mainly on the target of influence (e.g., consumer and voter); thus, the cognitive and neurobiological underpinnings of the source of the influence (e.g., politicians and salesmen) remain unknown. Here, in a three-sided advice-giving game, two advisers competed to influence a client by modulating their own confidence in their advice about which lottery the client should choose. We report that advisers’ strategy depends on their level of influence on the client and their merit relative to one another. Moreover, blood-oxygenation-level-dependent (BOLD) signal in the temporo-parietal junction is modulated by adviser’s current level of influence on the client, and relative merit prediction error affects activity in medial-prefrontal cortex. Both types of social information modulate ventral striatum response. By demonstrating what happens in our mind and brain when we try to influence others, these results begin to explain the biological mechanisms that shape inter-individual differences in social conduct.Though it's important to influence others' decisions, the neural correlates of persuasive strategies are not known. Here, authors show that people change their advice based on its accuracy and whether they are being listened to, and identify the distinct brain regions underpinning each strategy.
Neural computations underpinning the strategic management of influence in advice giving
Uri Hertz,Stefano Palminteri,Silvia Brunetti,Cecilie Olesen,C. Frith,B. Bahrami
Published 2017 in bioRxiv
ABSTRACT
PUBLICATION RECORD
- Publication year
2017
- Venue
bioRxiv
- Publication date
2017-09-18
- Fields of study
Biology, Medicine, Psychology
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
CITATION MAP
EXTRACTION MAP
CLAIMS
CONCEPTS
- adviser influence
The degree to which an adviser currently sways the client's choice behavior in the task.
Aliases: current level of influence on the client, influence on the client
- medial-prefrontal cortex
A medial frontal cortical region examined as a neural site for processing task-related social signals.
Aliases: mPFC
- merit prediction error
A trial-wise computational signal reflecting a mismatch between expected and observed relative merit between advisers.
Aliases: relative merit prediction error
- relative merit
The comparison of the two advisers' apparent competence or advice quality within the game.
Aliases: merit relative to one another, relative adviser merit
- social information
Task cues about influence and relative merit that guide advisers' strategic behavior.
Aliases: social cues
- temporo-parietal junction
A cortical region at the junction of the temporal and parietal lobes that was examined as a neural site in the task.
Aliases: TPJ
- three-sided advice-giving game
An experimental paradigm in which two advisers compete to influence a client by giving advice about lottery choices.
Aliases: advice-giving game, three-sided game
- ventral striatum
A subcortical reward-related region examined for sensitivity to social information in the task.
Aliases: VS
REFERENCES
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