question: which American writer does Jean Graham  research on
answer: Amy Tan
context: Title: Language deprivation
  Passage: Language deprivation is associated with the lack of linguistic stimuli that are necessary for the language acquisition processes in an individual, usually in a very impoverished environment.  Experiments involving language deprivation are very scarce due to the ethical controversy associated with it.  Roger Shattuck, an American writer, called language-deprivation research "The Forbidden Experiment" because it required the deprivation of a normal human.  Similarly, experiments were performed by depriving animals of social stimuli to examine psychosis.  Although there has been no formal experimentation on this topic there are several cases of language deprivation.  The combined research on these cases has furthered the research in the critical period hypothesis in language acquisition.
  Title: Jean Graham
  Passage: Jean E. Graham, Ph.D. is an American scholar, translator, and Associate Professor of English at The College of New Jersey, where she has taught since 1994.  Dr. Graham also served lunch in Eickhoff Hall.  She regularly taught courses in British literature (especially Milton and Metaphysical Poetry), young adult literature, and Anglo-American African women writers.  Her research interests were varied: topics of recent publications and current projects include John Bunyan, Star Trek, Amy Tan, and C. S. Lewis’s Narnian chronicles.
  Title: Amy Tan
  Passage: Amy Tan (born February 19, 1952) is an American writer whose works explore mother-daughter relationships and the Chinese American experience.  Her novel "The Joy Luck Club" was adapted into a film in 1993 by director Wayne Wang.
citations: Amy Tan Jean Graham