Exam 12: Growing up Criminal: Trait and Biological Theories of Crime

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Peskin et al. discussed several biological factors that might increase the likelihood of crime, including serotonin levels and brain cortex damage.

1. Serotonin Levels: Serotonin is a neurotransmitter that plays a significant role in regulating mood, aggression, impulse control, and anxiety. Low levels of serotonin have been linked to increased impulsivity and aggression, which could potentially lead to criminal behavior. Individuals with lower serotonin levels might have difficulty controlling their impulses and may be more prone to aggressive behavior, increasing the likelihood of committing a crime.

2. Brain Cortex Damage: The brain cortex is responsible for higher brain functions, including problem-solving, impulse control, and understanding consequences. Damage to this area can impair these functions, leading to poor decision-making and impulse control. Individuals with brain cortex damage might struggle with understanding the consequences of their actions, making them more likely to engage in criminal behavior. They may also have difficulty controlling their impulses, leading to more spontaneous and potentially harmful actions.