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Preferred pathways of behavioral contagion

M B Jones¹, D R Jones

¹Department of Behavioral Science, Pennsylvania State University College of Medicine, Hershey 17033, USA.

Journal of Psychiatric Research

|May 1, 1995

Summary

Behavioral disorders can spread through social networks, a phenomenon known as behavioral contagion. This study reveals contagion patterns in criminality, considering gender and twin type for better explanation.

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Area of Science:

Behavioral genetics
Social epidemiology
Criminology

Background:

Behavioral disorders can exhibit "contagion," where risk increases with affected social contacts.
Previous research identified contagion patterns in sibships and case-control studies.
Behavioral contagion is implicated in various issues like criminality, drug abuse, and suicide.

Purpose of the Study:

To extend behavioral contagion analysis by incorporating transmission variations based on gender and zygosity.
To apply the extended model to analyze criminality data in Danish twins.
To demonstrate the superiority of the behavioral contagion model over previous analyses for explaining criminality patterns.

Main Methods:

Analysis of behavioral contagion models incorporating gender and zygosity.
Application to twin data on criminality, differentiating between identical and fraternal twins.
Statistical modeling to compare contagion effects with other explanations.

Main Results:

The extended behavioral contagion model provides a better explanation for the distribution of criminality by gender and zygosity.
Transmission likelihood varies significantly based on sibling gender, birth status (singletons vs. twins), and zygosity.
Contagion effects are more pronounced in identical twins compared to fraternal twins.

Conclusions:

Behavioral contagion is a significant factor in understanding the familial aggregation of criminality.
The extended model offers a more nuanced understanding of contagion dynamics, particularly in twins.
Findings support the application of contagion models to diverse behavioral disorders.

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