“…Such expertise-modulated gaze pattern differences have been observed between expert and novice observers when they look at pictures or art pieces (Zangemeister, Sherman, & Stark, 1995;Vogt & Magnussen, 2007;Humphrey & Underwood, 2009;Pihko et al, 2011), watch sports videos (Crespi, Robino, Silva, & de'Sperati, 2012), read music (Waters, Underwood, & Findlay, 1997), interpret medical images (Nodine, Kundel, Lauver, & Toto, 1996;Donovan & Manning, 2007;Kundel, Nodine, Krupinski, & Mello-Thomas, 2008;Matsumoto et al, 2011;Wood, Batt, Appelboam, Harris, & Wilson, 2014), drive (Underwood, 1998;Nabatilan, Aghazadeh, Nimbarte, Harvey, & Chowdhury, 2012), or play chess (Reingold, Charness, Pomplun, & Stampe, 2001). For instance, in comparison with laypersons, experienced radiologists tend to adopt a more global gaze strategy to 5 examine mammography images in detecting breast cancer (Kundel et al, 2008), arttrained viewers often scan a larger surface of representational paintings and give higher aesthetic rating when evaluating abstract paintings (Pihko et al, 2011), and the experienced drivers fixate more on the front and centre view, and make fewer driving errors when facing visual distraction (Nabatilan et al, 2012). Based on these earlier studies, it is reasonable to assume that for a given task, the pet owners are likely to adopt an experienced-based viewing behaviour to extract informative facial information from familiar non-conspecific faces.…”