1. Joint Doctoral Program in Language and Communicative Disorders, School of Speech, Language, and Hearing Sciences, San Diego State University, San Diego, CA, USA;
2. Joint Doctoral Program in Language and Communicative Disorders, Center for Research in Language, University of California San Diego, La Jolla, CA, USA;
3. Laboratory for Cognitive Neuroscience, Salk Institute for Biological Sciences, La Jolla, CA, USA;
4. Institute of Child Development, University of Minnesota Twin Cities, Minneapolis, MN, USA