Metacognitive beliefs in addictive behaviours: A systematic review

A wide research base has shown the link between metacognitive beliefs and psychopathology and there is currently evidence that elevated levels of maladaptive metacognitive beliefs are present in the majority of psychological disorders. An increasing body of evidence also suggests that metacognitive beliefs may play a role in alcohol use, nicotine use, gambling, online gaming and problematic internet use. This article provides a systematic review of empirical studies that have examined metacognitive beliefs and addictive behaviours. Thirty-eight studies were included, with results showing a significant positive association between metacognitive beliefs and addictive behaviours. These results are consistent with the metacognitive model of addictive behaviour that supports the central role of metacognitive beliefs in the development and maintenance of addictive behaviours. However, our review highlights the paucity of longitudinal and experimental studies, preventing the determination of the causal status of metacognitive beliefs in addictive behaviours. Despite this limitation, the current evidence has important treatment implications because it suggests that interventions that target metacognitive beliefs could be beneficial for people presenting with addictive behaviours.