“…This learning deficit in isolates was likely due to poorer between-session learning (Amitai et al, 2014; Zeeb, Wong, & Winstanley, 2013). Learning and other cognitive deficits have been observed in isolates in a variety of other tasks, including tests of spatial and working memory (Einon, 1980; Woods, Fiske, & Ruckelshaus, 1961), reversal learning (Jones, Marsden, & Robbins, 1991; Krech, Rosenzweig, & Bennett, 1962; Li, Wu, & Li, 2007; Powell, et al, 2015; Schrijver, Pallier, Brown, & Wurbel, 2004), passive avoidance (Valzelli, 1973), recognition memory (Bianchi et al, 2006), and attentional set-shifting (Schrijver & Wurbel, 2001). …”