Fox Helen C, Bergquist Keri L, Hong Kwang-Ik, Sinha Rajita
Department of Psychiatry, Yale University School of Medicine, Substance Abuse Center, Connecticut Mental Health Center, New Haven, Connecticut 06519, USA.
Alcohol Clin Exp Res. 2007 Mar;31(3):395-403. doi: 10.1111/j.1530-0277.2006.00320.x.
Research has shown that exposure to stress/negative affect and to alcohol cues can each increase alcohol craving and relapse susceptibility in alcohol-dependent individuals. However, whether the emotional and physiological states associated with stress-induced and alcohol cue-induced craving are comparable has not been well studied. Therefore, this study examined the craving, emotional, and physiological responses to stress and to alcohol cues in treatment-engaged, 4-week abstinent, alcohol-dependent individuals using analogous stress and alcohol cue imagery methods.
Twenty treatment-seeking, alcohol-dependent participants (18 males/2 females) were exposed to a brief 5-minute guided imagery procedure that involved imagining a recent personal stressful situation, a personal alcohol cue-related situation, and a neutral-relaxing situation, 1 imagery per session presented in random order. Alcohol craving, anxiety and emotion rating scales, cardiovascular measures, and salivary cortisol were compared across the 3 conditions.
Exposure to stress and to alcohol cues each produced significant increases in alcohol craving, anxiety, and negative emotions and decreases in positive emotions. Stress-induced alcohol craving was significantly correlated with increases in sadness, anger, and anxiety ratings, but alcohol cue-induced craving was associated with decreases in positive affect (joy and neutral relaxed state) and increases in anxiety and fear ratings. Furthermore, stress increased systolic and diastolic blood pressure responses, but significant increases in salivary cortisol were only observed in the alcohol cue condition.
Although both stress and alcohol cues produce increases in anxiety associated with alcohol craving, each produced a dissociable psychobiological state involving subjective emotional, cardiovascular, and cortisol responses. These data could have significant implications for understanding the specific psychobiology associated with stress or alcohol cue exposure and their potential effects on alcohol relapse susceptibility.
研究表明,暴露于压力/负面影响和酒精线索中,均可增加酒精依赖个体的酒精渴望及复发易感性。然而,与压力诱发和酒精线索诱发的渴望相关的情绪和生理状态是否具有可比性,尚未得到充分研究。因此,本研究采用类似的压力和酒精线索想象方法,考察了处于治疗期、戒酒4周的酒精依赖个体对压力和酒精线索的渴望、情绪及生理反应。
20名寻求治疗的酒精依赖参与者(18名男性/2名女性)接受了一项为期5分钟的简短引导想象程序,该程序包括想象一个近期个人压力情境、一个与个人酒精线索相关的情境以及一个中性放松情境,每次想象情境以随机顺序呈现。比较了这三种情境下的酒精渴望、焦虑和情绪评分量表、心血管指标以及唾液皮质醇水平。
暴露于压力和酒精线索均导致酒精渴望、焦虑和负面情绪显著增加,积极情绪减少。压力诱发的酒精渴望与悲伤、愤怒和焦虑评分的增加显著相关,但酒精线索诱发的渴望与积极情绪(愉悦和中性放松状态)的减少以及焦虑和恐惧评分的增加相关。此外,压力增加了收缩压和舒张压反应,但仅在酒精线索情境中观察到唾液皮质醇显著增加。
尽管压力和酒精线索均会导致与酒精渴望相关的焦虑增加,但二者各自产生了一种可分离的心理生物学状态,涉及主观情绪、心血管和皮质醇反应。这些数据对于理解与压力或酒精线索暴露相关的特定心理生物学及其对酒精复发易感性的潜在影响可能具有重要意义。