Objective This study provides a comprehensive review of the literature on memory impairment and the potential effective factors in patients with chronic pain. Methods A literature search of databases PubMed, EMBASE, SpringerLink, and PsycINFO until September 2012 was conducted using the keywords 'memory' and 'chronic pain'. The study emphasises on publications over the past 20 years. Results Memory impairment in chronic pain patients is substantial, but the aspects of memory (e.g. working memory, long-term memory, and autobiographical memory) i...
