Functional organization of social perception networks in the human brain

Santavirta, Severi; Karjalainen, Tomi; Nazari-Farsani, Sanaz; Hudson, Matthew; Putkinen, Vesa; Seppälä, Kerttu; Sun, Lihua; Glerean, Enrico; Hirvonen, Jussi; Karlsson, Henry K.; Nummenmaa, Lauri

doi:10.1016/j.neuroimage.2023.120025

Cited by 16 publications

(21 citation statements)

References 91 publications

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“…Therefore, we initially defined a broad set of candidate social features based on the existing taxonomies used for describing humans and their actions and mental processes in the social domain. This list was based on an updated set of features used in our previous neuroimaging study of social perception (Santavirta et al, 2023) and contained a total of 138 socioemotional features describing person's traits, physical characteristics, internal states, somatic functions, sensory states, qualities of the social interaction and motor components of the social signalling.…”

Section: Candidate Social Featuresmentioning

confidence: 99%

“…To investigate how often specific social features are present and whether the movie clips contained sufficient occurrences of the targeted social features, we calculated the feature occurrence rate. A feature was considered present in a given movie clip if the average rating over annotators minus standard error (SEM) was above five (in the scale from 0 to 100) and occurrence rate was calculated as the proportion of all movie clips where the feature was present (Santavirta et al, 2023). Some social features are inherently discrete and others continuous.…”

Section: Analysing How People Perceive Social Featuresmentioning

confidence: 99%

“…Average hierarchical clustering (UPGMA) (Murtagh & Contreras, 2012) was used due to its simplicity and effectiveness in grouping social features in our previous study (Santavirta et al, 2023). To establish stable and generalizable clustering results we used a consensus clustering approach from diceR package (Chiu & Talhouk, 2018) in R software (https://www.r-project.org/).…”

Section: Hierarchical Clustering Analysismentioning

confidence: 99%

“…The separation of person, situation and behavior in social interaction has been considered an outdated approach (Funder, 2006) and instead the organization of social perception would likely relate to multiple factors established for these phenomena. Indeed, using neuroimaging we previously showed that large-scale brain networks encode a limited number of primary socially relevant dimensions from the sensory input consistently across individuals (Santavirta et al, 2023), but a robust behavioral taxonomy for social perception is currently lacking.…”

Section: Introductionmentioning

confidence: 99%

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A taxonomy for human social perception: Data-driven modelling with cinematic stimuli

Santavirta,

Malén,

Erdemli

et al. 2023

Preprint

Self Cite

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In everyday life, humans encounter complex social situations that need to be encoded effectively to allow seamless interaction with others. Yet, principles organizing the perception of social features from the external world remain poorly characterised. We presented 234 movie clips containing various social situations to 1140 participants and asked them to evaluate the presence of 138 social features in each movie clip. We first addressed how social features perceived as binary (present or absent) or continuously (intensity) and how consistently people perceive them. This analysis revealed that some social features were perceived as binary while others on a continuous scale. Simple and immediately relevant social features were perceived most consistently across participants. To establish the low-dimensional perceptual organization for social features, we used principal coordinate analysis and consensus hierarchical clustering for the full dataset of social feature ratings. Dimension reduction using principal coordinate analysis showed that the social perceptual space can be represented with eight main dimensions while hierarchical clustering showed that social perception organizes hierarchically from the main dimensions. The results generalized across different datasets with different stimuli and participants. Altogether the results establish the taxonomy of human social perception, suggesting that emotional valence, dominance, and cognitive versus impulsive functioning are the most fundamental dimensions in social perception.

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Section: Candidate Social Featuresmentioning

confidence: 99%

Section: Analysing How People Perceive Social Featuresmentioning

confidence: 99%

Section: Hierarchical Clustering Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A taxonomy for human social perception: Data-driven modelling with cinematic stimuli

Santavirta,

Malén,

Erdemli

et al. 2023

Preprint

Self Cite

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show abstract

“…An individual with a larger bias term would simply be more likely to judge all individuals as meritorious/needy irrespective of present cues. Whether processing and integrating these social cues, along with the resulting judgments, involves distinct neural modules 23 or a general-purpose mechanism for social cognition 24 , such as the mentalizing network [25][26][27][28] , remains unknown.…”

Section: Introductionmentioning

confidence: 99%

A neurocomputational account of the link between social perception and social action

Bas,

Roberts,

Hutcherson

et al. 2023

Preprint

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People selectively help others based on perceptions of their merit or need. Here, we develop a neurocomputational account of how these social perceptions translate into social choice. Using a novel fMRI social perception task, we show that both merit and need perceptions recruited the brain’s social inference network. A behavioral computational model identified two non-exclusive mechanisms underlying variance in social perceptions: a consistent tendency to perceive others as meritorious/needy (bias) and a propensity to sample and integrate normative evidence distinguishing high from low merit/need in other people (sensitivity). Variance in people’s merit (but not need) bias and sensitivity independently predicted distinct aspects of altruism in a social choice task completed months later. An individual’s meritbiaspredictedcontext-independentvariance in people’s overall other-regard during altruistic choice, biasing people towards prosocial actions. An individual’s meritsensitivitypredictedcontext-sensitivediscrimination in generosity towards high and low merit recipients by influencing other-regard and self-regard during altruistic decision-making. This context-sensitive perception-action link was associated with activation in the right temporoparietal junction. Together, these findings point towards stable, biologically based individual differences in perceptual processes related to abstract social concepts like merit, and suggest that these differences may have important behavioral implications for an individual’s tendency toward favoritism or discrimination in social settings.

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A chronometric study of the posterior cerebellum’s function in emotional processing

Ciricugno,

Ferrari,

Battelli

et al. 2024

Current Biology

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Functional organization of social perception networks in the human brain

Cited by 16 publications

References 91 publications

A taxonomy for human social perception: Data-driven modelling with cinematic stimuli

A taxonomy for human social perception: Data-driven modelling with cinematic stimuli

A neurocomputational account of the link between social perception and social action

A chronometric study of the posterior cerebellum’s function in emotional processing

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