The influence of cognitive processing on second language acquisition (SLA), and on the development of second language (SL) instruction, has always been a subject of major interest to both SLA researchers and those involved in SL pedagogy. Recent theoretical research into SLA and SL pedagogy has shown renewed interest in the role of cognitive variables such as attention, short, working, and long term memory, and automaticity of language processing. This volume first examines the theoretical foundations of research into the cognitive processes underlying SLA, and then describes various implications for pedagogically oriented research and for SL classroom practice. The blend of research from the cognitive sciences and applied linguistics make it an excellent introduction to applied linguists and language teachers interested in the psycholinguistic processes underlying SLA.