Interpretations of ambiguous social situations and cardiovascular responses in adolescents.

BACKGROUND Previous research has documented effects of ambiguous outcome social situations on individual differences in cardiovascular reactivity in laboratory contexts. PURPOSE This study tested whether interpretations of ambiguous social situations are associated with daily life cardiovascular responses using ambulatory approaches. METHODS There were 206 high school adolescents assessed on interpretations of ambiguous social situations in the laboratory who then completed ambulatory monitoring of blood pressure (BP) and heart rate (HR) for 2 days. RESULTS Adolescents who perceived threat during ambiguous situations exhibited higher systolic BP when talking to others compared to occasions of not talking with anyone, whereas the opposite was true for those with low threat perception. For high-threat adolescents, higher systolic BP was found when interacting with friends, whereas for low threat adolescents, lower systolic BP was found when interacting with parents. Greater threat interpretations were also associated with elevated HR at night. CONCLUSIONS Understanding how adolescents perceive social interactions may help in gauging their daily cardiovascular responses.