eeg data preprocessing  (MathWorks Inc)

Journal: bioRxiv

Article Title: Respiratory coordination of excitability states across the human wake-sleep cycle

doi: 10.1101/2025.06.03.657770

Figure Lengend Snippet: a , Hypnogram of the full night for a single participant. b , Time-frequency representation (spectrogram) of the EEG data recording (exemplary channel Pz). c , Continuously estimated 1/f spectral slope (z-scored over the full recording) from channel Pz. Aperiodic activity was estimated within a one-second sliding window (75% overlap) applied to the whole-night time series recorded from each channel (see Methods for details). Colour code indicates the simultaneously scored sleep stage shown in panel a. The dark vertical line marks the segment enlarged below. d , The inset illustrates the z-scored 1/f slope (upper trace) and z-scored respiratory signal (lower trace) across an exemplary 40-second time window.

Article Snippet: All EEG and respiratory data preprocessing was done in Fieldtrip for Matlab [ ].

Techniques: Activity Assay

Journal: bioRxiv

Article Title: Respiratory coordination of excitability states across the human wake-sleep cycle

doi: 10.1101/2025.06.03.657770

Figure Lengend Snippet: a , Group-level distribution of 1/f slope across polysomnographic stages, averaged across all k = 60 EEG channels and irrespective of respiration phase. Tukey-Kramer-corrected significance is shown relative to wakefulness; full statistical results are provided in the main text. b , Group-level distribution of respiratory rates across stages. Across all pairwise comparisons, only the difference between N1 and SWS was significant ( p = .041, Tukey-Kramer-corrected). c , Polar representation of group-level mean 1/f slope ± SEM across respiration phase per polysomnographic stage, averaged across all k = 60 channels. Coloured dashed lines indicate mean directions of the respective circular distributions. FDR-corrected significance is shown relative to wakefulness; full statistics on differences in mean direction are provided in the main text. d , Polar histograms show the circular distribution of mean directions in 1/f slope across the n = 23 participants per stage. Polar plots show individual courses of aperiodic activity over respiration phase. FDR-corrected tests against circular uniformity were highly significant for all polysomnographic stages. Statistical results are provided in the main text. e , Polar histograms show the circular distribution of group-level mean directions in 1/f slope across the k = 60 electrodes per stage. Polar plots show electrode-specific courses of aperiodic activity over respiration phase. FDR-corrected tests against circular uniformity were highly significant for all sleep stages. Statistical results are provided in the main text. f , Detailed visualisation of topographic consistency in group-level average 1/f slope across all electrodes, sorted from anterior to posterior location.

Article Snippet: All EEG and respiratory data preprocessing was done in Fieldtrip for Matlab [ ].

Techniques: Activity Assay

Journal: Neurobiology of Pain

Article Title: Cerebral peak alpha frequency: Associations with chronic pain onset and pain modulation

doi: 10.1016/j.ynpai.2025.100180

Figure Lengend Snippet: Erotica-induced modulation of NFR, pain, N2 and P2 in studies 2 and 3.

Article Snippet: For analysis of PEPs during CPM and ECON, EEG data were preprocessed and analyzed in BrainVision Analyzer Software (Version 2.1.2.327).

Techniques:

Journal: Neurobiology of Pain

Article Title: Cerebral peak alpha frequency: Associations with chronic pain onset and pain modulation

doi: 10.1016/j.ynpai.2025.100180

Figure Lengend Snippet: Mutilation-induced modulation of NFR, pain, N2 and P2 in studies 2 & 3.

Article Snippet: For analysis of PEPs during CPM and ECON, EEG data were preprocessed and analyzed in BrainVision Analyzer Software (Version 2.1.2.327).

Techniques:

Journal: Neurobiology of Pain

Article Title: Cerebral peak alpha frequency: Associations with chronic pain onset and pain modulation

doi: 10.1016/j.ynpai.2025.100180

Figure Lengend Snippet: Grand average EEG waveforms at Cz for ECON. Time windows used for analysis of N2 (90–140 ms) and P2 (280–350 ms) are shaded.

Article Snippet: For analysis of PEPs during CPM and ECON, EEG data were preprocessed and analyzed in BrainVision Analyzer Software (Version 2.1.2.327).

Techniques: