Journals / Turkish Journal of Medical Sciences / 2020 / Cilt: 50 - Sayı: 5

Correlation of language lateralization with resting state hippocampal connectivity in temporal lobe epilepsy patients

Pages
1350–1363
Publication Date
2022-11-06
DOI
—
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Conclusion: This study seems to depict the existence of resting state hippocampal-lingual functional network which correlates well with lateralization of language function in the left hemisphere in both temporal lobe epilepsy patients and healthy controls.

📌 3 Key Takeaways

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Objective & Hypothesis:Background/aim: The main purpose of this study is to evaluate the resting state hippocampal connectivity with language areas and to correlate them with laterality index calculations on single subject basis, hence to present hippocampal lateralization for language with rs-fMRI.
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Key Findings & Data:Materials and methods: Task based and rs-fMRI data were gathered from a total of 45 subjects in 3T scanner.
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Conclusion & Impact:Conclusion: This study seems to depict the existence of resting state hippocampal-lingual functional network which correlates well with lateralization of language function in the left hemisphere in both temporal lobe epilepsy patients and healthy controls.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Background/aim: The main purpose of this study is to evaluate the resting state hippocampal connectivity with language areas and to correlate them with laterality index calculations on single subject basis, hence to present hippocampal lateralization for language with rs-fMRI. Materials and methods: Task based and rs-fMRI data were gathered from a total of 45 subjects in 3T scanner. BrainVoyager QX, SPM, and CONN softwares were used for data analysis. LI score of each subject was calculated and converted into normalized LI score (nLI). Intrahemispheric rs-connectivity analysis was performed between hippocampus and Broca’s regions on both sides. Correlation between these variables was measured with SPSS software. Results: Right-TLE patients were found to have highest whereas left-TLE group were found to have lowest mean LI scores. Regarding hippocampal-lingual networks; left intrahemispheric connectivity values showed strong positive correlation with nLI values in left, right-TLE patients and healthy controls (P = 0.035, 0.014, 0.047). There were no significant correlation between right intrahemispheric connectivity values and nLI scores in all groups. Conclusion: This study seems to depict the existence of resting state hippocampal-lingual functional network which correlates well with lateralization of language function in the left hemisphere in both temporal lobe epilepsy patients and healthy controls.

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Cite This Article

KOÇ, A. M., UÇAR, M., ÖNCÜ, F., ÖNER, A. Y., ÖZER, H., GÜRYILDIRIM, M., TALI, E. T., KURT, G., ÇAPRAZ, İ., BİLİR, E. (2022). Correlation of language lateralization with resting state hippocampal connectivity in temporal lobe epilepsy patients. Turkish Journal of Medical Sciences, Cilt: 50 - Sayı: 5, 1350–1363. https://ajindex.com/articles/610074

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References (12)

  1. Pereira FR, Alessio A, Sercheli MS, Pedro T, Bilevicius E et al. Asymmetrical hippocampal connectivity in mesial temporal lobe epilepsy: evidence from resting state fMRI. BMC Neuroscience 2010
  2. doi: 10.1186/1471-2202-11-66 2. Bronen RA. Epilepsy: the role of MR imaging. AJR American Journal of Roentgenology 1992
  3. 159 (6): 1165-1174. 3. Vaughan DN, Rayner G, Tailby C, Jackson GD. MRI-negative temporal lobe epilepsy: A network disorder of neocortical connectivity. Neurology 2016
  4. 87 (18). doi: 10.1212/ WNL.0000000000003289 4. Knecht S, Drager B, Deppe M, Bobe L, Lohmann H et al. Handedness and hemispheric language dominance in healthy humans. Brain 2000
  5. 123 (12):2512-2518. doi: 10.1093/ brain/123.12.2512 5. Tanriverdi T, Al Hinai Q, Mok K, Klein D, Poulin N et al. Atypical language lateralization in patients with left hippocampal sclerosis: does the hippocampus affect language lateralization? Turkish Neurosurgery 2009
  6. 19 (1): 1-14. 6. Brazdil M, Chlebus P, Mikl M, Pazourkova M, Krupa P et al. Reorganization of language-related neuronal networks in patients with left temporal lobe epilepsy - an fMRI study. European Journal of Neurology 2005
  7. 12 (4): 268-275. 7. Ishikawa T, Muragaki Y, Maruyama T, Abe K, Kawamata T. Roles of the Wada Test and Functional Magnetic Resonance Imaging in Identifying the Language-dominant Hemisphere among Patients with Gliomas Located near Speech Areas. Neurologia Medico-Chirurgica 2017
  8. 57 (1): 28-34 (Article in Japanese). doi: 10.2176/nmc.oa.2016-0042 8. Tie Y, Rigolo L, Norton IH, Huang RY, Wu W et al. Defining language networks from resting-state fMRI for surgical planning--a feasibility study. Human Brain Mapping 2014
  9. 35 (3): 1018-1030. 9. Bettus G, Bartolomei F, Confort-Gouny S, Guedj E, Chauvel P et al. Role of resting state functional connectivity MRI in presurgical investigation of mesial temporal lobe epilepsy. Journal of Neurology, Neurosurgery, and Psychiatry 2010
  10. 81 (10): 1147-1154. 10. Park KM, Kim SE, Shin KJ, Ha SY, Park J et al. Effective connectivity in temporal lobe epilepsy with hippocampal sclerosis. Acta Neurologica Scandinavica 2017
  11. 135 (6): 670- 676. doi: 10.1111/ane.12669 11. Giovagnoli AR, Casazza M, Avanzini G. Visual learning on a selective reminding procedure and delayed recall in patients with temporal lobe epilepsy. Epilepsia 1995
  12. 36 (7): 704-711. 12. Gleissner U, Helmstaedter C, Elger CE. Right hippocampal contribution to visual memory: a presurgical and postsurgical study in patient