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Thought becoming reality: Role of the precuneus in thought-action-fusion in sub-clinical obsessive compulsive participants

Jones, Rhiannon and Bhattacharya, Joydeep. 2014. Thought becoming reality: Role of the precuneus in thought-action-fusion in sub-clinical obsessive compulsive participants. NeuroImage Clinical, 4, pp. 112-121. [Article]

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Abstract or Description

Likelihood thought–action fusion (TAF-L) refers to a cognitive bias in which individuals believe that the mere thought of a negative event increases its likelihood of occurring in reality. TAF-L is most commonly associated with obsessive–compulsive disorder (OCD) but is also present in depression, generalized anxiety disorder and psychosis. We induced TAF-L in individuals with high (High-OC, N = 23) and low (Low-OC, N = 24) levels of OC traits, and used low resolution electromagnetic tomography (LORETA) to localise the accompanying electrical brain activity patterns. The results showed greater TAF-L in the High-OC than in the Low-OC group (p < .005), which was accompanied by significantly greater upper beta frequency (19–30 Hz) activity in the precuneus (p < .05). Further, the precuneus activity was positively correlated with self-reported magnitude of TAF-L (p < .01), suggesting a specific role of this region in this cognitive bias. Results are discussed with reference to self-referential processing and the default-mode network.

Item Type:

Article

Departments, Centres and Research Units:

Psychology

Dates:

DateEvent
2014Published

Item ID:

12127

Date Deposited:

16 Jul 2015 09:04

Last Modified:

30 Jun 2017 13:22

Peer Reviewed:

Yes, this version has been peer-reviewed.

URI:

http://research.gold.ac.uk/id/eprint/12127

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