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INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH

A Step Towards Excellence
Published by : Advanced Scientific Research
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0975-2366
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IJPR 9[3] July - September 2017 Special Issue

July - September 9[3] 2017

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Biopsychological Aspects of Murder

Author: SHANNAIAH A.M. INOCENCIO, STEFANE KABENE, MUHAMMAD TAHIR, SAID BAADEL
Abstract: Murder is considered as a form of aggressive and violent behavior where there are no direct factors that can clearly point out its etiology. Many researchers look at motives to help identify why someone commits murder, showing mostly the social and psychological background of the problem. These researches lack theories on biological triggers that cause the behavior. The aim of this study is to see whether there are existing biological markers that may contribute for someone to develop as a murderer and whether this could potentially help in the way criminals are profiled. The objective is to look into the biological influences of genetics, brain structures, and hormones that plays a role in extremely violent behaviors evident in murderers. The paper analyzes secondary data in the domain to pinpoint some of the variations in the genes that may be responsible for being predisposed to aggressive tendencies and antisocial behavior. The samples of incarcerated murderers available in the literature were evaluated and concluded that increase in hormonal levels of testosterone, cortisol, progesterone, and oxytocin correspond to aggressive behavior. Finally, brain regions that are responsible for regulating emotions, cognition, inhibition, and decision-making were found to have an association with aggressive tendencies that were common among the studied samples. This paper concludes potential biological markers that may help identify at-risk populations and benefit the communities at large, and open further research on how future cases can be depleted which puts interest on researchers, detectives, forensics, and government entities among other stakeholders.
Keyword: Murder, Genetics, Hormones, Predisposition, Brain Imaging
DOI: https://doi.org/10.31838/ijpr/2021.13.02.305
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