This book represents a broad integration of several major themes in
psychology toward its unification. Unifying psychology is an ongoing
project that has no end-point, but the present work suggests several
major axes toward that end, including causality and
activation-inhibition coordination. On the development side of the model
building, the author has constructed an integrated lifespan stage model
of development across the Piagetian cognitive and the Eriksonian
socioaffective domains. The model is based on the concept of neo-stages,
which mitigates standard criticisms of developmental stage models. The
new work in the second half of the book extends the primary work in the
first half both in terms of causality and development. Also, the area of
couple work is examined from the stage perspective. Finally, new
concepts related to the main themes are represented, including on the
science formula, executive function, stress dysregulation disorder,
inner peace, and ethics, all toward showing the rich potential of the
present modeling.