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Impulsive versus premeditated aggression: implications for mens rea decisions.
Ernest S Barratt1, Alan R Felthous
1Psychodiagnostic Service and Cognitive Neurosciences Laboratory, Department of Psychiatry and Behavioral Sciences, The University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555-0189, USA. ebarratt@utmb.edu
Behavioral Sciences & the Law
|September 23, 2003
Summary
Scientific advancements offer insights into aggressive acts and criminal intent (mens rea). Distinguishing between impulsive and premeditated aggression is key, with cognitive neurosciences providing an integrated approach.
Area of Science:
- Cognitive Neurosciences
- Forensic Psychology
- Behavioral Science
Background:
- Scientific understanding of aggression and its classification (impulsive vs. premeditated) is evolving.
- The legal concept of mens rea (criminal intent) can be informed by scientific insights into behavior.
- Distinguishing between conscious and unconscious, and impulsive versus premeditated acts, remains a challenge.
Purpose of the Study:
- To review the scientific ability to differentiate between impulsive and premeditated aggressive acts.
- To explore the relationship between aggression types and the legal concept of mens rea.
- To identify risk factors associated with different forms of aggression.
Main Methods:
- Literature review examining scientific definitions and measurements of aggression.
- Analysis of how scientific disciplines contribute to understanding the mind-body connection in aggression.
- Exploration of risk factors for impulsive and premeditated aggression.
Main Results:
- Progress has been made in classifying aggression as impulsive or premeditated.
- The distinction between conscious/unconscious and impulsive/premeditated aggression is scientifically relevant to mens rea.
- Various scientific disciplines offer insights into behavioral intention and motivation.
Conclusions:
- An integrated, discipline-neutral model is the most promising approach for researching behavioral intention.
- Cognitive neurosciences offer a framework for unifying data from multiple disciplines.
- Further research integrating scientific findings can enhance understanding of criminal behavior and mens rea.
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