Frequency-specific alternations in the amplitude of low-frequency fluctuations in schizophrenia

Rongjun Yu, Yi Ling Chien, Hsiao Lan Sharon Wang*, Chih Min Liu, Chen Chung Liu, Tzung Jeng Hwang, Ming H. Hsieh, Hai Gwo Hwu, Wen Yih Isaac Tseng

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

142 引文 斯高帕斯(Scopus)

摘要

Schizophrenia has been associated with abnormal task-related brain activation in sensory and motor regions as well as social cognition network. Recently, two studies investigated temporal correlation between resting-state functional magnetic resonance imaging (R-fMRI) low-frequency oscillations (LFOs) in schizophrenia but reported mixed results. This may be due to the different frequency bands used in these studies. Here we utilized R-fMRI to measure the amplitude of low-frequency fluctuations (ALFF) and fractional ALFF (fALFF) in three different frequency bands (slow-5: 0.01-0.027 Hz; slow-4: 0.027-0.08 Hz; and typical band: 0.01-0.08 Hz) in 69 patients with schizophrenia and 62 healthy controls. We showed that there were significant differences in ALFF/fALFF between the two bands (slow-5 and slow-4) in regions including basal ganglia, midbrain, and ventromedial prefrontal cortex. Importantly, we also identified significant interaction between frequency bands and groups in inferior occipital gyrus, precunus, and thalamus. The results suggest that the abnormalities of LFOs in schizophrenia is dependent on the frequency band and suggest that future studies should take the different frequency bands into account when measure intrinsic brain activity. Hum Brain Mapp 35:627-637, 2014.

原文英語
頁(從 - 到)627-637
頁數11
期刊Human Brain Mapping
35
發行號2
DOIs
出版狀態已發佈 - 2014 二月

ASJC Scopus subject areas

  • 解剖學
  • 放射與超音波技術
  • 放射學、核子醫學和影像學
  • 神經內科
  • 神經病學(臨床)

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