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Association between EEG alpha power and visuospatial function in obsessive-compulsive disorder
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Abstract The purpose of the present paper was to determine if frontal activity, measured as electroencephalogram alpha power, correlates with visuospatial functions in obsessive–compulsive disorder (OCD). Electroencephalography and the Rey–Osterrieth Complex Figure Test (RCFT) were performed on 23 patients meeting the Diagnostic and Statistical Manual of Mental Disorders (4th edn; DSM‐IV) OCD criteria. After quantitatively analyzing EEG recordings taken over the frontal, temporal, parietal and occipital regions (F1, F2, T3, T4, P3, P4, O1 and O2), the log transformed absolute power values of the alpha frequencies of the regions were regressed with each RCFT index (copy, immediate recall and delayed recall score). On the frontal region (F1, F2), the RCFT copy score was found to be correlated with the alpha power with regression coefficients that had different directions according to hemisphere (F1, 5.62; F2, −5.26). The result that visuo‐constructional ability represented by the RCFT copy score correlated with frontal activation as measured by decreased alpha power, supports the opinion that visuospatial dysfunction in OCD is not in the visuospatial memory per se but rather that it is mediated by executive function deficit. The opposite correlation directions indicate that greater left frontal activation correlates with a poorer RCFT copy score and that greater right frontal activation correlates with a better copy score. These relationships provide indirect evidence of the possibility that the main pathology of OCD is located in the left hyperfrontality and that the right hyperfrontality of OCD occurs by a compensatory mechanism.
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In study [62], lower left frontal alpha power, interpreted as greater left frontal activation, was associated with poorer copy performance.
“Lower left frontal alpha power, interpreted as greater left frontal activation, was associated with poorer copy performance.”
In study [62], frontal alpha power was significantly associated with copy performance, whereas alpha power in parietal, temporal, and occipital regions was not.
“Frontal alpha power was significantly associated with copy performance, whereas alpha power in parietal, temporal, and occipital regions was not.”
In study [62], lower right frontal alpha power, interpreted as greater right frontal activation, was associated with better copy performance.
“In contrast, lower right frontal alpha power, interpreted as greater right frontal activation, was associated with better copy performance.”
In study [62], the direction of the relationship differed between hemispheres.
“Importantly, the direction of the relationship differed between hemispheres.”
Study [62] further connected resting EEG alpha activity with visuoconstructional and nonverbal cognitive performance.
“Study [62] further connected resting EEG alpha activity with visuoconstructional and nonverbal cognitive performance.”
All five studies in this part of the synthesis were judged to have a serious overall risk of bias.
“The resting-state and quantitative EEG findings require particularly cautious interpretation because all five studies in this part of the synthesis [58,59,60,61,62] were judged to have a serious overall risk of bias.”
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PARK, H. S., SHIN, Y., HA, T. H., SHIN, M. S., KIM, Y. Y., LEE, Y. H., & KWON, J. S. (2006) · Psychiatry and Clinical Neurosciences · doi:10.1111/j.1440-1819.2006.01587.x · Cited by 63
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Metadata
- Authors
- SHIN, Y., HA, T. H., KIM, S. Y., & KWON, J. S.
- Affiliations
- Asan Medical Center (KR)
- Seoul National University (KR)
- Corresponding author
- KWON, JUN SOO
- Venue
- Psychiatry and Clinical Neurosciences
- Publisher
- Wiley
- Published
- 2003-12-17
- Volume
- 58
- Issue
- 1
- Pages
- 16-20
- ISSN
- 1323-1316 (ISSN-L)
- 1440-1819
- OpenAlex
- W2072151825
- Cited by
- 30
- References
- 39
- Citations by year
- 2026: 1 · 2021: 1 · 2020: 4 · 2019: 3 · 2018: 2 · 2017: 1 · 2016: 2 · 2014: 1 · 2013: 2 · 2012: 1
- FWCI
- 1.63
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Psychiatry and Clinical Neurosciences (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Psychology › Clinical Psychology › Obsessive-Compulsive Spectrum Disorders
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Social Sciences › Psychology › Clinical Psychology › Psychoanalysis and Psychopathology Research
- Keywords
- obsessive-compulsive disorder, EEG alpha power, visuospatial ability, frontal lobe activation, hemispheric lateralization, compensatory mechanisms, Rey-Osterrieth Complex Figure Test
- MeSH terms
- Adult, Electroencephalography, Female, Frontal Lobe, Humans, Male, Obsessive-Compulsive Disorder, Space Perception, Visual Perception
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