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What was the sample population studied by Barkley-Levenson and Galvan?

  1. Children and adolescents

  2. Young adults in their 20s

  3. Middle-aged adults

  4. Older adults

The correct answer is: Young adults in their 20s

Barkley-Levenson and Galvan conducted their research focusing on young adults, specifically those in their 20s, to investigate how neural mechanisms influence decision-making and risk-taking behaviors. This age group is particularly relevant when studying the brain's development, especially the prefrontal cortex, which continues to mature into the mid-20s, making this an ideal population for observing changes in cognitive functions and behavioral responses. This research aimed to link the neurobiological development happening in young adulthood with psychological and behavioral outcomes. The emphasis on individuals in their 20s is crucial as it represents a transitional phase where both brain development and behavioral patterns are still evolving, thus allowing for a unique perspective on decision-making processes during this formative stage of life.