摘要
Physiological fluctuations are commonly present in functional studies of hemodynamic response such as functional magnetic resonance imaging (fMRI) and functional near-infrared spectroscopy (fNIRS). However, the effects of these signals in neural mechanisms are not fully understood. Thus, the aim of this study is to propose that frequency-specific networks exist in the somatosensory region within the frequency range of physiological fluctuations. We used a wavelet coherence approach to identify functional connectivity between cortical regions. Based on the spectral response, four frequency bands were identified: cardiac (0.8-1.5 Hz), respiration (0.16-0.6 Hz), low frequency oscillations (LFO) (0.04-0.15 Hz), and very low frequency oscillations (VLFO) (0.0130.04 Hz). Eight cortical networks were revealed after ipsilateral and contralateral analysis to evaluate connectivity in each frequency band. The ANOVA analysis proved the adequacy of the connectivity map for all frequencies bands. Finally, these findings suggest possible frequency-specific organizations within the frequency bands of physiological fluctuations in the resting human brain.
| 原文 | 英語 |
|---|---|
| 主出版物標題 | 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society |
| 主出版物子標題 | Smarter Technology for a Healthier World, EMBC 2017 - Proceedings |
| 發行者 | Institute of Electrical and Electronics Engineers Inc. |
| 頁面 | 2550-2553 |
| 頁數 | 4 |
| ISBN（電子） | 9781509028092 |
| DOIs | |
| 出版狀態 | 已發佈 - 9月 13 2017 |
| 事件 | 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2017 - Jeju Island, 大韓民國 持續時間: 7月 11 2017 → 7月 15 2017 |
其他
| 其他 | 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2017 |
|---|---|
| 國家/地區 | 大韓民國 |
| 城市 | Jeju Island |
| 期間 | 7/11/17 → 7/15/17 |
ASJC Scopus subject areas
- 訊號處理
- 生物醫學工程
- 電腦視覺和模式識別
- 健康資訊學