Altered source memory retrieval is associated with pathological doubt in obsessive–compulsive disorder
Open accessAbstract
Individuals with obsessive-compulsive disorder (OCD) often complain of doubt related to memory. As neuropsychological research has demonstrated that individuals with OCD tend to focus on details and miss the larger context, the construct of source (contextual) memory may be particularly relevant to memory complaints in OCD. Memory for object versus contextual information relies on partially distinct regions within the prefrontal cortex, parietal and medial temporal lobe, and may be differentially impacted by OCD. In the present study, we sought to test the hypothesis that individuals with OCD exhibit impaired source memory retrieval using a novel memory paradigm - The Memory for Rooms Test (MFRT) - a four-room memory task in which participants walk through four rooms and attempt to encode and remember objects. Demographically matched individuals with OCD and healthy controls studied objects in the context of four rooms, and then completed a memory retrieval test while undergoing functional magnetic resonance imaging (fMRI). While no differences were observed in source memory accuracy, individuals with OCD exhibited greater task related activation in the posterior cingulate cortex (PCC) relative to healthy controls during correct source memory retrieval. During correct object recognition, individuals with OCD failed to recruit the dorsolateral prefrontal(DLPFC)/premotor, left mPFC, and right parietal regions to the same extent as healthy controls. Our results suggest abnormal recruitment of frontal-parietal and PCC regions during source verses object memory retrieval in OCD. Within the OCD group, activation in the PCC and the premotor/DLPFC was associated with greater pathological doubt. This finding is consistent with the observation that OCD patients often experience extreme doubt, even when memory performance is intact.
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Impaired memory functions correlate with OCD symptom dimensions including pathological doubt and compulsive checking.
“Experimental studies have reported impaired memory functions to correlate with OCD symptom dimensions, including pathological doubt [166] and compulsive checking [167].”
From Toward a neurocircuit-based taxonomy to guide treatment of obsessive-compulsive disorder (2021) · cites this paper as [166]
Even without behavioral deficits, OCD patients can show underactive dlPFC and weaker dlPFC-striatal functional connectivity.
“even when patients do not present behavioral deficits, they can show altered brain activity, including underactive dlPFC and weaker dlPFC-striatal functional connectivity [165–166].”
From Toward a neurocircuit-based taxonomy to guide treatment of obsessive-compulsive disorder (2021) · cites this paper as [166]
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- Authors
- Olson, C. A., Hale, L. R., Hamilton, N., Powell, J. N., Martin, L. E., & Savage, C. R.
- Affiliations
- University of Wisconsin–Madison (US)
- University of Kansas (US)
- University of Kansas Medical Center (US)
- Corresponding author
- Olson, Christy A.
- Venue
- Behavioural Brain Research
- Publisher
- Elsevier BV
- Published
- 2016-01
- Volume
- 296
- Pages
- 53-60
- ISSN
- 0166-4328 (ISSN-L)
- PMC
- PMC4720123
- OpenAlex
- W1833140660
- Cited by
- 17
- References
- 71
- Citations by year
- 2023: 2 · 2022: 2 · 2021: 3 · 2020: 4 · 2019: 1 · 2018: 1 · 2017: 2 · 2016: 2
- FWCI
- 2.05
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Behavioural Brain Research (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute of Mental Health National Research Service Award (F31 MH090690)
- Hoglund Brain Imaging Center Pilot Fund
- Topics
- Social Sciences › Psychology › Clinical Psychology › Obsessive-Compulsive Spectrum Disorders
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Keywords
- obsessive-compulsive disorder, source memory, contextual memory, posterior cingulate cortex, dorsolateral prefrontal cortex, medial prefrontal cortex, parietal cortex, object memory, memory retrieval, brain activation
- MeSH terms
- Adult, Female, Gyrus Cinguli, Humans, Magnetic Resonance Imaging, Memory Disorders, Middle Aged, Obsessive-Compulsive Disorder, Parietal Lobe, Mental Recall, Prefrontal Cortex, Recognition, Psychology
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