The effect of self-focused attention during mirror gazing on body image evaluations, appearance-related imagery, and urges to mirror gaze.

BACKGROUND AND OBJECTIVES: Mirror gazing has been linked to poor body image. Cognitive-behavioral models propose that mirror gazing induces self-focused attention. This activates appearance-related imagery, increases body dissatisfaction, and promotes further mirror gazing. However, evidence for these relationships remains scarce. Our study experimentally investigated how self-focused attention impacts overall and facial appearance satisfaction, perceived attractiveness, distress about appearance and disliked features, vividness and emotional quality of appearance-related imagery, and urges to mirror gaze. Baseline body dysmorphic concerns were studied as a moderator. METHODS: Singaporean undergraduates (Mage = 21.22, SDage = 1.62; 35 females, 28 males) were randomly assigned to high or low self-focused attention during a mirror gazing task. Dependent variables were measured with visual analogue scales, and body dysmorphic concerns with the Body Image Disturbance Questionnaire (BIDQ). Analysis of variance and moderation analyses were conducted. RESULTS: Self-focused attention lowered overall and facial appearance satisfaction. Perceived attractiveness decreased only in individuals with high baseline body dysmorphic concerns. Contrary to predictions, distress, appearance-related imagery, and urges to mirror gaze were unaffected. LIMITATIONS: This study used a non-clinical sample. The BIDQ has not been psychometrically validated in Singaporean samples. CONCLUSIONS: Self-focused attention during mirror gazing lowers positive body image evaluations. Individuals with higher body dysmorphic concerns are particularly vulnerable to low perceived attractiveness.

Heart rate responses to standardized trauma-related pictures in acute posttraumatic stress disorder.

Physiological responses to trauma reminders are one of the core symptoms of posttraumatic stress disorder (PTSD). Nevertheless, screening measures for PTSD largely rely on symptom self-reports. It has been suggested that psychophysiological assessments may be useful in identifying trauma survivors with PTSD (Orr and Roth, 2000). This study investigated whether heart rate (HR) responses to standardized trauma-related pictures distinguish between trauma survivors with and without acute PTSD. Survivors of motor vehicle accidents or physical assaults (N=162) watched standardized trauma-related, generally threatening and neutral pictures at 1 month post-trauma while their ECG was recorded. At 1 and 6 months, structured clinical interviews assessed PTSD diagnoses. Participants completed self-report measures of PTSD severity and depression, peritraumatic responses, coping behaviors and appraisals. Trauma survivors with acute PTSD showed greater HR responses to trauma-related pictures than those without PTSD, as indicated by a less pronounced mean deceleration, greater peak responses, and a greater proportion showing HR acceleration of greater than 1 beat per minute. There were no group differences in HR responses to generally threatening or neutral pictures. HR responses to trauma-related pictures contributed to the prediction of PTSD diagnosis over and above what could be predicted from self-reports of PTSD and depression. HR responses to trauma-related pictures were related to fear and data-driven processing during the trauma, safety behaviors, suppression of trauma memories, and overgeneralized appraisals of danger. The results suggest that HR responses to standardized trauma-related pictures may help identify a subgroup of patients with acute PTSD who show generalized fear responses to trauma reminders. The early generalization of triggers of reexperiencing symptoms observed in this study is consistent with associative learning and cognitive models of PTSD.

Early heart rate responses to standardized trauma-related pictures predict posttraumatic stress disorder: a prospective study.

OBJECTIVE: To investigate whether chronic posttraumatic stress disorder can be predicted by heart rate responses (HRR) and skin conductance responses (SCR) to standardized trauma-related pictures at 1 month after trauma has ocurred. Trauma survivors with PTSD report heightened physiological responses to a wide range of stimuli. It has been suggested that associative learning and stimulus generalization play a key role in the development of these symptoms. Some studies have found that trauma survivors with PTSD show greater physiological responses to individualized trauma reminders in the initial weeks after trauma than those without PTSD. METHODS: Survivors of motor vehicle accidents or physical assaults (n = 166) watched standardized trauma-related, generally threatening, and neutral pictures at 1 month post trauma, as their HRR and SCR were recorded. PTSD symptoms were assessed with structured clinical interviews at 1 month and 6 months; self-reports of fear responses and dissociation during trauma were obtained soon after the trauma. RESULTS: At 1 month, trauma survivors with PTSD showed greater HRR to trauma-related pictures than those without PTSD, but not to general threat or neutral pictures. HRR to trauma-related pictures predicted PTSD severity at 1 month and 6 months, and were related to fear and dissociation during trauma. SCR were not related to PTSD. CONCLUSION: HRR to standardized trauma reminders at 1 month after the trauma differentiate between trauma survivors with and without PTSD, and predict chronic PTSD. RESULTS are consistent with a role of associative learning in PTSD and suggest that early stimulus generalization may be an indicator of risk for chronic PTSD.