Charles FernyhoughCharles Fernyhough has written extensively on the implications of Vygotsky's theory, particularly for the emergence of verbal mediation in the preschool and early school years. He has previously co-edited a four-volume collection of critical assessmets of Vygotsky's work (1999). He has been involved in three major longitudinal developmental studies with samples in Cambridge, Stoke-on-Trent, and Stockton-upon-Tees, along with several studies of psychosis-like symptoms in healthy adults and children. Recent articles have included work on the neuropsychology of voice-hearing, the stress-diathesis model of schizophrenia, and a Vygotskian approach to the phenomenon of auditory verbal hallucinations. His introductory book on developmental psychology, A Thousand Days of Wonder: A Scientist's Chronicle of His Daughter's Developing Mind, will appear in the United States in 2009. Read More Read Less