“…Therefore, studying the neural basis might be the best way to differentiate the basic emotions and probe into the number of basic emotions. However, many fMRI studies have met some troubles in differentiating the basic emotions (such as fear, anger, joy, sad, and disgust) with distinct universal signals, physiology, especially the localization of the central nervous system (Lindquist and Barrett, 2012; Lindquist et al, 2012), which has led to even more controversies about the basic emotions (Posner et al, 2005; Scarantino and Griffiths, 2011; Scarantino, 2015; Hutto et al, 2018). For example, even though neuroimaging studies found some evidence for basic emotions [such as amygdala for fear (Ohman, 2005), insula for disgust (Wicker et al, 2003), anterior cingulate cortex for sadness, orbitofrontal cortex for anger (Murphy et al, 2003)], these neuroimaging data are not consistent with specific one-to-one correspondence between fMRI localization of anger, sadness, fear, disgust, etc (Lindquist et al, 2012; Clark-Polner et al, 2017).…”