“…Instead, by far the most common sources of error are simple fluctuations of background activity in the temporal region. Some may meet criteria for wicket spikes [30,31,32,33,34,35,36], but many are simple fluctuations of background activity, as had been suggested by a small earlier study [26]. These ‘nameless’ fluctuations of normal backgrounds do not fit into well-described EEG waveforms, can be found on most EEGs, and have been described under different names [31,32,33,34,35,36].…”