Kim, S.-W. Paik, S.-H. Song, K.-I. Yang, S.J. Youn, I. Kim, B.-M. Seong, J.-K. 2024-01-20T08:04:25Z 2024-01-20T08:04:25Z 2022-01-10 2014-12 2093-9868 https://pubs.kist.re.kr/handle/201004/126023 Purpose: Because the brain can divide into many separate regions structurally and these regions don’t exist independently in terms of their function, there are some tendencies between these regions.Results: Concentration changes in oxyhemoglobin and deoxyhemoglobin was calculated using reconstructed absorption coefficients at each nodes in finiteelement mesh. Then these time-series node data were mapped on our rat brain MR image. In addition, we analyzed coactivation by calculating correlation coefficients between time-series node data and standard response pattern of two parameters.Conclusions: We ascertained that some brain regions were coactivated under sensory stimulation.Methods: This functional connectivity has been analyzed using functional magnetic resonance imaging (fMRI), but in recent, diffuse optical tomography (DOT) has started to analyze these connectivity. In our experiment, we measured the coactivation in brain regions in response to sensory stimulation using CW-DOT. ？ 2014, Korean Society of Medical and Biological Engineering and Springer. English Springer Verlag Brain Brain mapping Magnetic resonance imaging Optical tomography Rats Time series Absorption co-efficient Brain connectivity Correlation coefficient Diffuse optical tomography Functional magnetic resonance imaging Functional-near infrared Hemodynamic response Mouse Infrared devices deoxyhemoglobin oxyhemoglobin absorption spectroscopy adult animal experiment Article brain region computer interface continuous wave laser correlation analysis correlation coefficient diffuse optical tomography female finite element analysis Fourier transformation functional magnetic resonance imaging functional neuroimaging image processing mathematical model near infrared imaging system near infrared spectroscopy nerve cell network nonhuman optical tomography primary somatosensory cortex priority journal rat stimulus response Functional connectivity change of the rat brain in response to sensory stimuli using functional near-infrared brain imaging Article 10.1007/s13534-014-0166-7 1 Biomedical Engineering Letters, v.4, no.4, pp.370 - 377 Biomedical Engineering Letters 4 4 370 377 scopus kci ART001954160 2-s2.0-84921033295 Article Brain Brain mapping Magnetic resonance imaging Optical tomography Rats Time series Absorption co-efficient Brain connectivity Correlation coefficient Diffuse optical tomography Functional magnetic resonance imaging Functional-near infrared Hemodynamic response Mouse Infrared devices deoxyhemoglobin oxyhemoglobin absorption spectroscopy adult animal experiment Article brain region computer interface continuous wave laser correlation analysis correlation coefficient diffuse optical tomography female finite element analysis Fourier transformation functional magnetic resonance imaging functional neuroimaging image processing mathematical model near infrared imaging system near infrared spectroscopy nerve cell network nonhuman optical tomography primary somatosensory cortex priority journal rat stimulus response Diffuse optical tomography Functional brain connectivity Hemodynamic response Mouse