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1.1
Linguistic synaesthesia
Previous research focuses on three main questions concerning linguistic synaesthesia, including: （1）what transfer tendencies does linguistic synaesthesia show；（2）what are the underlying mechanisms for synaesthetic mappings; and （3）is the nature of linguistic synaesthesia neurological （Ronga et al.2012）, metaphorical （Strik Lievers 2017）, or literal （Winter 2019b）.