What physiological response is likely to differ between Ps and controls when anticipating aversive events?

• A. Peripheral nervous system inhibition
• B. Sympathetic nervous system arousal
• C. Heart rate variability
• D. Cognitive appraisal of the situation

Answer: (B)

The correct answer focuses on the sympathetic nervous system's response during the anticipation of aversive events. The sympathetic nervous system is responsible for the body's 'fight-or-flight' response, which prepares the individual to react to perceived threats. When anticipating aversive events, individuals typically experience heightened arousal via increased heart rate, blood pressure, and adrenaline release, all of which are part of the sympathetic nervous system's activation.

In the context of this question, individuals classified as 'Ps' (likely meaning those with certain psychological traits or conditions) may exhibit different levels of sympathetic arousal compared to a control group due to their distinct emotional and physiological responses to stressors. This divergence can manifest in various ways, including altered physiological patterns such as sweating, increased respiratory rates, or stronger cardiovascular responses.

In comparison, peripheral nervous system inhibition addresses a potentially dampened response, while heart rate variability concerns the adaptability of heart rate to stress rather than the level of arousal itself. Cognitive appraisal refers to the individual's interpretation of the stressor, which can differ in the way individuals approach the situation but does not directly relate to the physiological responses measured. The context of sympathetic arousal is central to understanding how anticipation of aversive events affects physiological states, emphasizing the