Division of General Pediatrics and Adolescent Medicine, the Johns Hopkins School of Medicine, Baltimore, Maryland 21287, USA.
J Adolesc Health. 2012 Aug;51(2 Suppl):S34-40. doi: 10.1016/j.jadohealth.2012.04.021.
Adolescent risk taking may result from heightened susceptibility to environmental cues, particularly emotion and potential rewards. This study evaluated the impact of social stress on adolescent risk taking, accounting for individual differences in risk taking under nonstressed conditions.
Eighty-nine older adolescents completed a computerized risk-taking and decision-making battery at baseline. At follow-up, participants were randomized to a control condition, which repeated this battery, or an experimental condition, which included a social and cognitive stressor before the battery. Baseline risk-taking data were cluster-analyzed to create groups of adolescents with similar risk-taking tendencies. The degree to which these risk-taking tendencies predicted risk taking by stress condition was assessed at follow-up.
Participants in the stress condition took more risks than those in the no-stress condition. However, differences in risk taking under stress were related to baseline risk-taking tendencies. We observed three types of risk-takers: conservative, calculated, and impulsive. Impulsives were less accurate and planful under stress; calculated risk takers took fewer risks; and conservatives engaged in low risk taking regardless of stress.
As a group, adolescents are more likely to take risks in "hot cognitive" than in "cold cognitive" situations. However, there is significant variability in adolescents' behavioral responses to stress related to trait-level risk-taking tendencies.
青少年的冒险行为可能源于对环境线索的敏感性增加,尤其是情绪和潜在奖励。本研究评估了社会压力对青少年冒险行为的影响,同时考虑了非应激条件下个体冒险行为的差异。
89 名年龄较大的青少年在基线时完成了一项计算机化的冒险和决策测试。在随访时,参与者被随机分配到对照组(重复该测试)或实验组(在测试前进行社会和认知应激源)。使用聚类分析对基线冒险数据进行分组,创建具有相似冒险倾向的青少年组。在随访时评估这些冒险倾向在应激条件下对冒险行为的预测程度。
应激组的参与者比无应激组的参与者承担了更多的风险。然而,应激下的冒险行为差异与基线冒险倾向有关。我们观察到三种冒险类型:保守型、计算型和冲动型。冲动型在应激下的准确性和计划性较差;计算型的风险承担者承担的风险较少;而保守型的人无论是否受到压力,都倾向于低风险行为。
作为一个群体,青少年在“热认知”情境中比在“冷认知”情境中更有可能冒险。然而,青少年对与特质水平冒险倾向相关的应激的行为反应存在显著的个体差异。