eeg 64 electrodes biosemi active 2 system  (BioSemi)

Journal: bioRxiv

Article Title: The Speech Reception Threshold Can be Estimated Using EEG Electrodes In and Around the Ear

doi: 10.1101/2024.12.02.625819

Figure Lengend Snippet: Panel A: an example of a left-side ear-EEG earpiece and the location of the used electrodes. Panel B: the location of the scalp electrodes.

Article Snippet: Scalp EEG was recorded using the Biosemi Active EEG (Amsterdam, Netherlands) system with a 64-electrode cap and 2 additional mastoid electrodes.

Techniques:

Journal: bioRxiv

Article Title: The Speech Reception Threshold Can be Estimated Using EEG Electrodes In and Around the Ear

doi: 10.1101/2024.12.02.625819

Figure Lengend Snippet: The different electrode configurations using electrodes in and around the ear as input for the decoder. Each line going into the decoder is a channel input. The abbreviation for the electrode configuration is shown under “Configuration”, with the active electrodes and their corresponding references described.

Article Snippet: Scalp EEG was recorded using the Biosemi Active EEG (Amsterdam, Netherlands) system with a 64-electrode cap and 2 additional mastoid electrodes.

Techniques:

Journal: bioRxiv

Article Title: The Speech Reception Threshold Can be Estimated Using EEG Electrodes In and Around the Ear

doi: 10.1101/2024.12.02.625819

Figure Lengend Snippet: Example of a sigmoid fit to single-subject data from an ear electrode configuration. Each circle shows the reconstruction accuracy for one single trial. The across-trial means for each condition are shown as red squares. The maximum and minimum values used in the sigmoid fit (p and b parameters) are shown with dotted black lines the estimated SRT neuro with a vertical dotted green line and the sigmoid fit is shown in dark blue.

Article Snippet: Scalp EEG was recorded using the Biosemi Active EEG (Amsterdam, Netherlands) system with a 64-electrode cap and 2 additional mastoid electrodes.

Techniques:

Journal: bioRxiv

Article Title: The Speech Reception Threshold Can be Estimated Using EEG Electrodes In and Around the Ear

doi: 10.1101/2024.12.02.625819

Figure Lengend Snippet: Upper panel shows a bar plot depicting the number of participants for whom a valid SRT neuro were obtained. The blue dotted line indicates the number of participants included in the study. The lower panel illustrates the difference between the (estimated) SRT neuro and the (measured) SRT beh for the considered electrode configurations. The difference in dB for each participant is marked with black circles for each of the electrode configurations, with a slight horizontal jitter. A boxplot of the difference is also shown, where the red line indicates the median, the edge of the blue box indicates the 25th and 75th percentiles and the black whiskers mark the most extreme values for non-outliers. Datapoints are considered outliers if they are more than 1.5 times the interquartile range away from the bottom or top of the box and marked with a red cross; extreme outliers outside the depicted value range are indicated with a red triangle.

Article Snippet: Scalp EEG was recorded using the Biosemi Active EEG (Amsterdam, Netherlands) system with a 64-electrode cap and 2 additional mastoid electrodes.

Techniques:

Journal: bioRxiv

Article Title: The Speech Reception Threshold Can be Estimated Using EEG Electrodes In and Around the Ear

doi: 10.1101/2024.12.02.625819

Figure Lengend Snippet:

Article Snippet: Scalp EEG was recorded using the Biosemi Active EEG (Amsterdam, Netherlands) system with a 64-electrode cap and 2 additional mastoid electrodes.

Techniques: Comparison, Standard Deviation

Journal: Neuropsychiatric Disease and Treatment

Article Title: Heart Rate Variability in Psychiatric Disorders: A Systematic Review

doi: 10.2147/NDT.S429592

Figure Lengend Snippet: HRV Detection and Analysis

Article Snippet: Haigh et al, 2021 , RRI, SDNN, HF, LF , y , ECG, EEG , BioSemi 64-channel Active 2 EEG system with Ag-AgCl electrodes , 512 Hz.

Techniques: Software

Journal: International Journal of Psychophysiology

Article Title: Spatial and temporal resolutions of EEG: Is it really black and white? A scalp current density view

doi: 10.1016/j.ijpsycho.2015.05.004

Figure Lengend Snippet: Simulated potentials for the last simulation (100 ms vs. 250 ms). The upper row shows the scalp potential topographies obtained at 150, 175 and 250 ms. Potentials present a large central positivity. Lower panel: time course of the reconstructed potentials at electrodes C1 (blue), Cz (green) and C2 (red). The blue and red arrows indicate the latency of the recovered peak on C1 and C2. The recovered latencies on electrodes are pretty far from the underlying dipole ones. One can also note the large activity observed on Cz, despite the absence of direct underlying dipole.

Article Snippet: EEG was acquired with 64 active-2 electrodes (Biosemi, Amsterdam) located at the standard extended 10–20 system.

Techniques: Activity Assay

Journal: International Journal of Psychophysiology

Article Title: Spatial and temporal resolutions of EEG: Is it really black and white? A scalp current density view

doi: 10.1016/j.ijpsycho.2015.05.004

Figure Lengend Snippet: A. Time courses of the simulated cortical dipoles. B. Peak latencies of the simulated dipoles (solid lines) for each dipole–amplitude ratio, and recovered potential peak latencies (empty symbols) for each reference electrode. Despite a constant time course of the underlying dipoles, the recovered scalp latencies differ dramatically as a function of the amplitude ratio. C. Same information after CSD transform: The recovered latencies are in close agreement with the underlying dipole time course.

Article Snippet: EEG was acquired with 64 active-2 electrodes (Biosemi, Amsterdam) located at the standard extended 10–20 system.

Techniques:

Journal: International Journal of Psychophysiology

Article Title: Spatial and temporal resolutions of EEG: Is it really black and white? A scalp current density view

doi: 10.1016/j.ijpsycho.2015.05.004

Figure Lengend Snippet: Empirical data of dataset # 1: A: scalp potential time course recorded by electrodes C3 and FCz in a manual reaction time task (right response), time-locked to the response-EMG onset. The time courses are pretty similar between the two electrodes, and mainly present a large and temporally spread positivity that peaks slightly after EMG onset. A small bump is observed around − 50 ms, with a similar time course for both electrodes. B. Same data after SL computation: The recovered activities dramatically differ between the two electrodes. Over electrode FCz, a negative peak is observed around 40 ms before, and resolves shortly after, EMG onset. Over C3, a negative activity peaks shortly after EMG onset (around 20 ms). Panel C summarizes the obtained latencies (y-axis) as a function of the electrodes (x-axis, red: FCz, blue: C3), for scalp potentials (colored squares) and CSD (colored circles).

Article Snippet: EEG was acquired with 64 active-2 electrodes (Biosemi, Amsterdam) located at the standard extended 10–20 system.

Techniques: Activity Assay

Journal: International Journal of Psychophysiology

Article Title: Spatial and temporal resolutions of EEG: Is it really black and white? A scalp current density view

doi: 10.1016/j.ijpsycho.2015.05.004

Figure Lengend Snippet: Time courses obtained from dataset # 2. A. Time course of the negative scalp potential at the selected occipital and parietal electrodes. Only the left electrodes are shown. Activities over the different electrodes present a very similar shape and time course. B. Same data after SL transform: the shape and the timing of the activities dramatically differ between electrodes. C. Summary of the peak latencies (y-axis) for the representative electrodes (x-axis) for scalp potentials (colored squares) and CSD (colored circles). While the latency differences are rather small for scalp potential data (max difference: 38 ms), the CSD evidences a clear occipito-parietal latency gradient (max difference: 81 ms).

Article Snippet: EEG was acquired with 64 active-2 electrodes (Biosemi, Amsterdam) located at the standard extended 10–20 system.

Techniques: