@misc{Verissimo2017,
  author    = {Verissimo, Jo{\~a}o Marques},
  title     = {Sensitive periods in both L1 and L2},
  series = {Bilingualism : language and cognition},
  volume    = {21},
  journal   = {Bilingualism : language and cognition},
  number    = {5},
  publisher = {Cambridge Univ. Press},
  address   = {New York},
  issn      = {1366-7289},
  doi       = {10.1017/S1366728918000275},
  pages     = {932 -- 933},
  year      = {2017},
  abstract  = {The keynote article (Mayberry \& Kluender, 2017) makes an important contribution to questions concerning the existence and characteristics of sensitive periods in language acquisition. Specifically, by comparing groups of non-native L1 and L2 signers, the authors have been able to ingeniously disentangle the effects of maturation from those of early language exposure. Based on L1 versus L2 contrasts, the paper convincingly argues that L2 learning is a less clear test of sensitive periods. Nevertheless, we believe Mayberry and Kluender underestimate the evidence for maturational factors in L2 learning, especially that coming from recent research.},
  language  = {en}
}