fnirs data processing and analysis  (NIRx Medical Technologies)

Journal: Brain and Behavior

Article Title: Cortical activation during the verbal fluency task for obstructive sleep apnea patients with depressive symptoms: A multi‐channel fNIRS study

doi: 10.1002/brb3.70038

Figure Lengend Snippet: Univariate and multivariate linear regression analyses of factors associated with 17‐item Hamilton Rating Scale for Depression (HAMD‐17) score in obstructive sleep apnea (OSA) patients.

Article Snippet: All fNIRS data analysis procedures were accomplished under MATLAB R2013b.

Techniques:

Journal: NeuroImage

Article Title: Spatial correspondence of cortical activity measured with whole head fNIRS and fMRI: Toward clinical use within subject.

doi: 10.1016/j.neuroimage.2024.120569

Figure Lengend Snippet: Fig. 1. fNIRS sensor montage registered to the head for participant #2144 (upper-left). Emitters and detectors are colored red and green respectively. The remaining graphics show the corresponding summed sensitivity map for the subject, illustrating the relative sensitivity of the fNIRS sensor montage (shown on a square-root scale) for detecting chromophore changes across the cortical surface. Anterior (A), posterior (P), superior (S), inferior (I), left (L) and right (R) are labelled for reference.

Article Snippet: All fNIRS channel-level data analysis was completed using MATLAB R2020a (The Mathworks, Natick, MA), together with NIRS Brain Analyzer Toolbox (Santosa et al., 2018).

Techniques:

Journal: NeuroImage

Article Title: Spatial correspondence of cortical activity measured with whole head fNIRS and fMRI: Toward clinical use within subject.

doi: 10.1016/j.neuroimage.2024.120569

Figure Lengend Snippet: Fig. 2. Volume to surface projection of task-related activity measured during right-handed finger tapping for a representative participant (#2144). fNIRS results are shown here for oxyhemoglobin. Each slice image shows the volumetric activity from a different view (axial, sagittal and coronal) centered on motor cortex (MNI coordinates x: −40.72, y: −22.70, z: 60.54), together with the corresponding surface projection. Anterior (A), posterior (P), left (L) and right (R) are labelled for reference.

Article Snippet: All fNIRS channel-level data analysis was completed using MATLAB R2020a (The Mathworks, Natick, MA), together with NIRS Brain Analyzer Toolbox (Santosa et al., 2018).

Techniques: Activity Assay

Journal: NeuroImage

Article Title: Spatial correspondence of cortical activity measured with whole head fNIRS and fMRI: Toward clinical use within subject.

doi: 10.1016/j.neuroimage.2024.120569

Figure Lengend Snippet: Fig. 4. Single subject comparisons of the spatial correspondence between task-related fNIRS and fMRI activity mapped to the cortical surface during the Motor task for three representative participants drawn from the first, second, and third quartiles of fNIRS/fMRI overlap (#2014, #2132, #2144, labelled as I, II, III respectively). For all comparisons, the fNIRS sensitivity threshold was set to 1 % of the maximum total sensitivity and the amplitude threshold (p-value) was set to the average values across participants (p < 0.0599) that maximized the spatial correspondence with fMRI during the Motor task. Anterior (A), posterior (P), left (L) and right (R) are labelled for reference.

Article Snippet: All fNIRS channel-level data analysis was completed using MATLAB R2020a (The Mathworks, Natick, MA), together with NIRS Brain Analyzer Toolbox (Santosa et al., 2018).

Techniques: Activity Assay

Journal: NeuroImage

Article Title: Spatial correspondence of cortical activity measured with whole head fNIRS and fMRI: Toward clinical use within subject.

doi: 10.1016/j.neuroimage.2024.120569

Figure Lengend Snippet: Fig. 3. Single subject (#2144) fNIRS channel level results for the Motor task. Each topographic plot shows the T-score for task-related activity in each channel. Channels with significant task-related are denoted by solid-colored lines (p < 0.05, critical T = 2.47 via Benjamini-Hochberg procedure). Channels whose task- related activity was not statistically significant are denoted by dashed lines. Plot insets show the block average responses and standard deviations during the task period (green shading) for the channel with the largest task-related response. Time courses have been smoothed by a 3-second centered moving average (mean) for visualization.

Article Snippet: All fNIRS channel-level data analysis was completed using MATLAB R2020a (The Mathworks, Natick, MA), together with NIRS Brain Analyzer Toolbox (Santosa et al., 2018).

Techniques: Activity Assay, Blocking Assay

Journal: NeuroImage

Article Title: Spatial correspondence of cortical activity measured with whole head fNIRS and fMRI: Toward clinical use within subject.

doi: 10.1016/j.neuroimage.2024.120569

Figure Lengend Snippet: Fig. 5. Single subject comparisons of the of the spatial correspondence between task-related fNIRS and fMRI activity mapped to the cortical surface during the Visual task for three representative participants drawn from the first, second, and third quartiles of fNIRS/fMRI overlap (#2014, #2132, #2144, labelled as I, II, III respectively). For all comparisons, the fNIRS sensitivity threshold was set to 1 % of the maximum total sensitivity and the amplitude threshold (p-value) was set to the average values across participants (p < 0.0405) that maximized the spatial correspondence with fMRI during the Visual task. Anterior (A), posterior (P), left (L) and right (R) are labelled for reference.

Article Snippet: All fNIRS channel-level data analysis was completed using MATLAB R2020a (The Mathworks, Natick, MA), together with NIRS Brain Analyzer Toolbox (Santosa et al., 2018).

Techniques: Activity Assay

Journal: NeuroImage

Article Title: Spatial correspondence of cortical activity measured with whole head fNIRS and fMRI: Toward clinical use within subject.

doi: 10.1016/j.neuroimage.2024.120569

Figure Lengend Snippet: Fig. 6. Group level comparison of the spatial correspondence between significant task-related fNIRS and fMRI activity mapped to the cortical surface during the Motor task. fNIRS sensitivity threshold was set to 1 % of the maximum total sensitivity and the group amplitude threshold that maximized the correspondence between fNIRS and fMRI was (p < 0.0003). Anterior (A), posterior (P), left (L) and right (R) are labelled for reference.

Article Snippet: All fNIRS channel-level data analysis was completed using MATLAB R2020a (The Mathworks, Natick, MA), together with NIRS Brain Analyzer Toolbox (Santosa et al., 2018).

Techniques: Comparison, Activity Assay

Journal: International neurourology journal

Article Title: Intravesical Electrical Stimulation Improves Abnormal Prefrontal Brain Activity in Patients With Underactive Bladder: A Possible Central Mechanism.

doi: 10.5213/inj.2346232.116

Figure Lengend Snippet: Fig. 4. Channel locations for the fNIRS cap. fNIRS, functional near-infrared spectroscopy; Ch, channel; MNI, Montreal Neurological Institute; BA, Brodmann; Rt, right; Lt, left; DLPFC, dorsolateral prefrontal cortex; FPA, frontopolar area; POBA, pars opercularis Bro- ca’s area; PT, pars triangularis.

Article Snippet: The specific locations of the channels are detailed in Fig. 4. fNIRS Data Analysis A MATLAB toolbox was used to perform data preprocessing and visualize the results [25].

Techniques: Functional Assay, Spectroscopy