Recent advances in neuroimaging have revealed that the human brain undergoes significant structural changes during adolescence, particularly in the prefrontal cortex, which is responsible for decision-making and impulse control. However, contrary to popular belief, these changes do not necessarily lead to irrational behavior. Instead, researchers argue that adolescent risk-taking is often a calculated response to uncertain environments, shaped by social cues and peer influence. A study by Johnson et al. (2021) found that teenagers who received training in probabilistic reasoning showed reduced risky choices in laboratory tasks, suggesting that cognitive development can be enhanced through targeted intervention. This finding challenges the deterministic view of brain maturation, implying that educational programs could play a pivotal role in fostering adaptive decision-making skills among youth.
❓ この文章で言及されている研究の主な含意は何ですか？
A. 思春期の脳の発達は、生物学的要因のみによって決定される。
B. 10代の若者のリスクテイキングは常に非合理的で制御不能である。
C. 標的を絞ったトレーニングは、青少年の意思決定能力を向上させる可能性がある。
D. 仲間からの影響は、思春期の行動に影響を与えない。
✅ 正确答案
Targeted training may improve decision-making in adolescents.
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