# A Wireless EEG System for Neurofeedback Training
## 4 Materials and Methods
### NF-EEG Brain Locations
\begin{table}
\begin{tabular}{p{113.8 pt} p{113.8 pt} p{113.8 pt} p{113.8 pt} p{113.8 pt}} \hline \hline  & & **10-20** & **System** & & \\ \hline Gyrus & Abbreviation & Electrode (L-R Site) & Closest Brodmann Areas & Functional Name \\ \hline \hline
**middle frontal gyrus** & **MFG** & **Fz, F3-F4** & **BA8** & **intermediate frontal cortex (includes frontal eye fields)** \\ \hline inferior frontal gyrus & IFG & F7-F8 & BA45/47 & [PERSON]’s area, orbital frontal cortex \\ \hline postcentral gyrus & PSTCG & C3-C4 & BA123/6 & primary somatosensory and motor cortices \\ \hline posterior part of superior temporal gyrus & STG & T7-T8 & BA21/22 & MT and MST \\ \hline inferior parietal lobe & IPL & P3 & BA39/7/19 & angular, precuneus, associative visual V3 area \\ \hline inferior parietal lobe & IPL & P4 & BA39/40/7 & angular, supramarginal, gyri, precuneus \\ \hline
**middle occipital gyrus** & **MOG** & **O1-O2** & **BA19** & **associative visual V3 area** \\ \hline
**precentral gyrus** & **PRECG** & **Cz** & **BA4/6** & **primary motor and premotor cortices** \\ \hline
**superior parietal gyrus** & **SPL** & **Pz** & **BA7** & **precuneus, 7P** \\ \hline inferior temporal gyrus & ITG & P7 & BA37/19 & lateral occipitotemporal gyrus, adjacent to posterior fusiform, lingual cortex V5 and V3 \\ \hline inferior temporal gyrus & ITG & P8 & BA37 & occipitotemporal gyrus \\ \hline  & & **10-10** & **system** & \\ \hline superior frontal cortex & SFC & AF3-AF4 & BA9 & dorsolateral prefrontal cortex (DLFC) \\ \hline
**anterior part of the inferior temporal gyrus** & **ATG** & **FT9-FT10** & **BA20/BA38** & **temporal pole, areas TE/AIT** \\ \hline middle frontal gyrus & MFG & FC3-FC4 & BA6 & premotor and supplementary motor cortices: pre-SMA and SMA \\ \hline inferior frontal gyrus & IFG & FC5-FC6 & BA44/45 & opercular and triangular parts of Broca’s area \\ \hline precentral gyrus & PRECG & C1-C2 & BA4/6/123 & primary motor, premotor, and somatosensory cortices \\ \hline postcentral gyrus & PSTCG & C5-C6 & BA123/40/43 & primary somatosensory cortex and supramarginal gyrus with extension into the Sylvian fissure to PFo \\ \hline superior parietal gyrus & SPL & CP1-CP2 & BA5/7 & areas PGA, 7A, and 7 PC, LIP \\ \hline inferior parietal lobe & IPL & CP3-CP4 & BA40/123 & supramarginal gyrus (subareas PFT and PFm; ventral intraparietal sulcus VIP or IPSmot) \\ \hline
**middle temporal gyri** & **MTG** & **TP7** & **BA21/37/22** & **MT+, V5, and MST** \\ \hline
**middle temporal gyri** & **MTG** & **TP8** & **BA21/22/37/20** & **medial superior and middle temporal areas, 20** & **lateral occipitotemporal or posterior inferior temporal gyri, adjacent to posterior fusiform and lingual gyrus; MST, MT+, V5, and V4** \\ \hline superior occipital gyrus & SOG & PO3 & BA19/18/39/7 & dorsal visual cortex or parieto-occipital sulcus, angular gyrus, and precuneus; pIPS, V3A, and POs \\ \hline superior occipital gyrus & SOG & PO4 & BA19/18/39 & dorsomedial parietooccipital visual V6 and V6A, ventral portion of posterior intraparietal sulcus with dorsal portion of retinotopical V3A and V7 \\ \hline
**middle occipital gyrus** & **MOG** & **PO7-PO8** & **BA18/19** & **ventral visual cortices V3v and V2** \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Forty sensor locations covering adjacent brain areas. Twelve NF sensors (eight areas) are marked in bold.