“…Because marmosets are small in body size (~300-400g), they can be housed in the laboratory in their species-typical family units that naturally give rise to rich interaction and social communication in laboratory conditions. The marmoset brain, though lissencephalic (smooth), possesses the shared neural architecture of primates (Chaplin et al, 2013; de la Mothe et al, 2006, 2012; Mitchell and Leopold, 2015; Solomon and Rosa, 2014), including potential homologous cortical substrates underlying complex perceptual processes, such as pitch discrimination (Bendor and Wang, 2005; Song et al, 2016; Wang and Walker, 2012). Modern technological methods make it feasible to track the activity of neural circuits under such conditions (Eliades and Wang, 2008a, b; Eliades and Wang, 2013; Miller et al, 2015; Roy and Wang, 2012).…”