Intrusive images in psychological disorders: characteristics, neural mechanisms, and treatment implications.

TitleIntrusive images in psychological disorders: characteristics, neural mechanisms, and treatment implications.
Publication TypeJournal Article
AuthorsBrewin, Chris R., James D. Gregory, Michelle Lipton, and Neil Burgess
PubMed ID20063969
PubMed Central IDPMC2834572
Grant ListG0501672 / / Medical Research Council / United Kingdom
/ / Medical Research Council / United Kingdom
/ / Wellcome Trust / United Kingdom

Involuntary images and visual memories are prominent in many types of psychopathology. Patients with posttraumatic stress disorder, other anxiety disorders, depression, eating disorders, and psychosis frequently report repeated visual intrusions corresponding to a small number of real or imaginary events, usually extremely vivid, detailed, and with highly distressing content. Both memory and imagery appear to rely on common networks involving medial prefrontal regions, posterior regions in the medial and lateral parietal cortices, the lateral temporal cortex, and the medial temporal lobe. Evidence from cognitive psychology and neuroscience implies distinct neural bases to abstract, flexible, contextualized representations (C-reps) and to inflexible, sensory-bound representations (S-reps). We revise our previous dual representation theory of posttraumatic stress disorder to place it within a neural systems model of healthy memory and imagery. The revised model is used to explain how the different types of distressing visual intrusions associated with clinical disorders arise, in terms of the need for correct interaction between the neural systems supporting S-reps and C-reps via visuospatial working memory. Finally, we discuss the treatment implications of the new model and relate it to existing forms of psychological therapy.

Title Intrusive images in psychological disorders: characteristics, neural mechanisms, and treatment implications.
Publication Title Psychol Rev
Publication Type Journal Article
Published Year 2010
Authors C.R. Brewin; J.D. Gregory; M. Lipton; N. Burgess
ISSN Number 1939-1471
PubMed ID 20063969
PubMed Central ID PMC2834572
Grant List
G0501672 Medical Research Council United Kingdom

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