“…We hypothesized that 1) imagination exercises can improve language ability and 2) there exists a strong critical period for voluntary imagination acquisition, which ends shortly after the age of 5. Accordingly, we designed various developmental activities, all of which follow a systematic approach to train voluntary imagination verbally as well as outside of the verbal domain (R. Dunn, Elgart, Lokshina, Faisman, Khokhlovich, et al, 2017b, 2017aR. Dunn, Elgart, Lokshina, Faisman, Waslick, et al, 2017;Vyshedskiy & Dunn, 2015a).…”