A systematic review evaluating metacognitive beliefs in health anxiety and somatic distress.

PURPOSE: Increasing evidence suggests metacognitive beliefs may underpin transdiagnostic mechanisms maintaining psychopathology. The objective of this systematic review was to evaluate published studies investigating the role of metacognitive beliefs in somatic distress in adult samples. METHOD: A systematic review was conducted, spanning five data bases. Studies meeting eligibility criteria were qualitatively synthesized. RESULTS: Thirty-six studies (N = 12,390) met inclusion criteria with results suggesting a relatively consistent positive relationship between metacognitive beliefs and somatic distress. Both general and syndrome-specific metacognitive beliefs demonstrated relationships with not only emotional distress, but also physical symptoms themselves. CONCLUSIONS: Results are discussed in terms of conceptualizing somatic distress through the Self-Regulatory Executive Function (S-REF) Model. Future research into metacognitive therapy for somatic populations is recommended.

Muscle and fat aftereffects and the role of gender: Implications for body image disturbance.

Body image disturbance - a cause of distress amongst the general population and those diagnosed with various disorders - is often attributed to the media's unrealistic depiction of ideal bodies. These ideals are strongly gendered, leading to pronounced fat concern amongst females, and a male preoccupation with muscularity. Recent research suggests that visual aftereffects may be fundamental to the misperception of body fat and muscle mass - the perceptual component of body image disturbance. This study sought to establish the influence of gender on these body aftereffects. Male and female observers were randomly assigned to one of four adaptation conditions (low-fat, high-fat, low-muscle, and high-muscle bodies) and were asked to adjust the apparent fat and muscle levels of male and female bodies to make them appear as 'normal' as possible both before adaptation and after adaptation. While neither the gender of observers nor of body stimuli had a direct effect, aftereffect magnitude was significantly larger when observers viewed own-gender (compared with other-gender) stimuli. This effect, which may be due to attentional factors, could have implications for the development of body image disturbance, given the preponderance of idealized own-gender bodies in media marketed to male and female consumers.