TABLE 2.
Methodological and technical aspects of the EEG and SEP studies
| Study | n | Age | EEG | EEG | SEP | Freq. (Hz) | EEG analysis |
|---|---|---|---|---|---|---|---|
| n channels | Montage | ||||||
| Kanayama et al. (2007) | 11 | 19–22 | 15 | Linked mastoid reference | Yes (stimulus‐based) | 1–100 | ERP peak amplitude and phase synchrony analysis |
| Kanayama et al. (2009) | 24 | 18–24 | 32 | Single reference (nose tip) | Yes (stimulus‐based) | 1–100 | ERP peak amplitude, time–frequency, and phase synchrony analysis |
| Kanayama et al. (2017) | 20 | 19–36 | 64 | Average reference | No | 1–125 | Causality analysis via renormalized partial directed coherence on cluster‐ based dependent EEG components |
| Faivre et al. (2017) | 23 | Mean 22.4 | 64 | Average reference | No | 1–45 | Band‐specific power analysis, source localization, and phase synchrony calculation in source space |
| Rao and Kayser (2017) | 20 | Mean 22.6 | 64 | Average reference | Yes (stimulus‐based) | 0.5–30 | Average ERP and spectral power analyses |
| Shibuya et al. (2018) | 18 | Mean 23.6 | 32 | Linked mastoid reference | No | 8–13 | Time–frequency analysis via event‐related spectral perturbation |
| Zeller et al. (2015) | 13 | 21–32 | 64 | Average reference | Yes (brush‐based) | 2–20 | ERP activation map comparisons within sensor and source space |
| Zeller et al. (2016) | 13 | 21–32 | 64 | Average reference | Yes (brush‐based) | 2–20 | Dynamic causal modeling of the SSEP response in source space |
| Peled et al. (2003) | 38 | Mean 28.5 | 11 | Average reference | Yes (brush‐based) | 1–70 | Amplitude–latency analyses of ERP response |
| Press et al. (2008) | 32 | 20–42 | 23 | Linked mastoid reference | Yes (stimulus‐based) | 0.1–40 | ERP amplitude analyses |
Abbreviations: EEG, electroencephalography; ERP, event‐related potential; Hz, Hertz; n, number; SEP, somatosensory evoked potentials.