ɹˈiːsəntli, mˈæk wˈɪniz wˈɜːk hɐz fˈoʊkəst ˌɔn ˈæspɛkts ʌv sˈɛkənd lˈæŋɡwɪdʒ lˈɜːnɪŋ ænd ðə nˈʊɹɹəl bˈeɪsᵻz ʌv lˈæŋɡwɪdʒ æz ɹᵻvˈiːld baɪ ðə dɪvˈɛləpmənt ʌv tʃˈɪldɹən wɪð fˈoʊkəl bɹˈeɪn lˈiːʒənz.
Recently, MacWhinney's work has focused on aspects of second language learning and the neural bases of language as revealed by the development of children with focal brain lesions.