I Dysgraphia and Dyscopia, 1969

II An Appositional Mind, 1969

III Callosum and Creativity, 1969

IV Neurosociology, 1972

V Educational Implications, 1975

VI Reply to critique of part IV, 1976

VII Small scale replication of part IV, 1979

VIII BBS commentary, 1983

IX Mental Duality, 1985-1987

X Wigan's Observations, 1986

XI The Dual Brain, 1985XII One's Other Mind, 2000