“…), was also the focus of a series of articles (see Luciano, Leisser, Wright, & Martin, 2004;Luciano, Wright, & Bates, 2008;Roberts, 2002;Robinson, 2008). Indicative of how the ambivert has become a particularly Eysenckian concept, associated with his theories and methods of the biology of personality, the ambivert still occasionally appears in event-related potential (ERP; research that analyzes EEG [electroencephalography] data) experiments on personality outside of Personality and Individual Differences (e.g., Cai, Lou, Long, & Yuan, 2016;Georgiev, Christov, & Philipova, 2014;Hervas & Lopez-Gomez, 2016). The ambivert has also found its way outside of the Eysenckian lexicon and into more mainstream psychology and consequently, once again, into popular culture.…”