Biological Underpinnings of Criminal Behavior: A Comprehensive Review

Abstract

Background: Traditional criminological theories often emphasize social and environmental factors in criminal behavior. However, early biological research, which was initially reductionist and focused on physical traits, has evolved significantly with advancements in genetics and neuroimaging techniques. This evolution has led to a more nuanced understanding of the role of biological factors in criminal behavior.   Objective: This review aims to critically examine how genetic, neurobiological, and psychophysiological factors contribute to criminal behavior, and to explore the interplay between these biological predispositions and environmental influences.   Methods: We systematically analyzed empirical studies that investigate the impact of abnormalities in brain structures, neurotransmitter systems, and genetic predispositions on antisocial behaviors, integrating these findings with socio-environmental conditions.   Results: Findings from recent studies indicate significant contributions of abnormalities in brain areas such as the prefrontal cortex and amygdala, and dysregulation in neurotransmitter systems to antisocial behaviors. These biological factors, when combined with environmental influences, enhance our understanding of criminal tendencies.   Conclusion: The integration of biological perspectives into criminological theories marks a significant shift towards a more holistic approach in the study of criminal behavior. This review advocates for the development of targeted intervention strategies and ethical policy formulations, emphasizing the potential of biological research to improve the efficacy and humanity of the criminal justice system. Ongoing interdisciplinary research and collaboration are essential to continue advancing our understanding and management of criminal behavior.