“…Most of prior studies probed into lexical tones as a whole (e.g., Wang et al, 2001 ; Francis et al, 2003 ; Hallé et al, 2004 ), while more recent studies have switched to the dynamic interaction between acoustic and phonological information of lexical tones (e.g., Xi et al, 2010 ; Zhang et al, 2011 ; Yu et al, 2014 ). In general, the acoustic information consists of the physical features of lexical tones as estimated by F0 (e.g., pitch height and pitch contour), while the phonological information refers to the linguistic properties with tonal categories to distinguish lexical semantics ( Yu et al, 2019 ). Although some secondary cues might influence the judgment of lexical tone contrasts, F0 remains most critical as amply confirmed by the seminal ( Wang, 1976 ) and subsequent studies of categorical perception of lexical tones ( Xu et al, 2006 ; Peng et al, 2010 ; Shen and Froud, 2016 ).…”