The article summarizes results from two experimental studies (N = 23, N = 21) investigating the extent to which working memory capacity (WMC) intervenes in "ab initio" language development under two pedagogical conditions [± grammar lesson + input-based practice + explicit feedback]. The linguistic target is the use of morphosyntax to…

Vygotskian sociocultural theory of mind holds that language mediates thought. According to the theory, speech does not merely put completed thought into words; rather, it is a tool to refine thought as it evolves in real time. This study investigated from a sociocultural theory of mind perspective how nine beginning learners of Latin used private…

Input exposure is essential for nonprimary language learning, but the importance of explicit instruction and corrective feedback continues to be debated. If instruction is required, how might it be optimized in terms of its nature and timing? In this study, 65 Spanish-English bilinguals were introduced to Latin through an interactive computer…

This research investigated Spanish-English bilingual adults' initial learning of a third language (L3), Latin, comparing the learning processes and outcomes of early- and late-onset bilinguals. Thirty-three participants were classified as Early or Late Bilinguals according to their age of arrival to the USA, and they were introduced to Latin by…

The article summarizes results from two experimental studies on reactivity. In the first experiment, 24 college-age participants received a computerized treatment that delivered a grammar lesson, practice, and feedback on assignment of semantic functions in Latin. Verbalizations did not induce reactivity on accuracy, but they slowed down posttest…