 That is the reason for a major pitfall of MEEG analysis methods, distorted reconstruction of source activity and its connectivity or "Leakage".
<meaning-changed>  That is the reason for a major pitfall of MEEG analysis methods, distorted reconstruction of source activity and its connectivity or "Leakage".
 That is the reason for a major pitfall of noninvasive Electrophysiology methods: distorted reconstruction of source activity and its connectivity or "Leakage".