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. 2024 Aug 5;14:18111. doi: 10.1038/s41598-024-69122-y

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/.

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fMRI shows brain regions with abnormal ALFF and ReHo values in the OCD group compared with the HC group. Note: voxel p < 0.001, cluster p < 0.05, FWE corrected. (A) Brain regions showing significant differences in ALFF values between the OCD and HC groups. The color bar represents the t-value range, with red indicating higher ALFF values in the OCD group and blue indicating lower ALFF values in the OCD group compared to the HC group. The ALFF of the OCD group was lower than that of HC in the Cerebellum_Crus2_R (MNI coordinates, 12, -87, -30). (B) Brain regions showing significant differences in ReHo values between the OCD and HC groups. The color bar represents the z-score range, with warm colors (yellow–red) indicating higher ReHo values in the OCD group and cool colors (blue) indicating lower ReHo values in the OCD group compared to the HC group. The ReHo of the OCD group was lower than that of HC in the Cerebellum_Crus2_R (MNI coordinates, 9, − 87, -30), and the Occipital_Sup_R (MNI coordinates, 21, − 84, 39).