This article is an essay on the mind of the epistemic psychologist. Th
is mind is a constructivist creator of knowledge within a scientific f
ramework. It is also a mind that is guided and formed by the social wo
rld of scientific institutions. Sociogenesis and constructivism are no
t opponents along the lines usually assumed with respect to relations
between Piaget and Vygotsky. They shared a deep respect for complexity
of phenomena. Both were consistently developmental in their theoretic
al constructions. A reconsideration of their common heritage points to
specific theoretical gaps in contemporary developmental psychology. T
hese are gaps that can be filled. Piaget and Vygotsky have challenged
the world view of developmental psychology in numerous ways. Both of t
hem were interested outsiders to that discipline. Outsiders often have
a better view of the inside. This can be said to be true of both Vygo
tsky and Piaget in relation to the field of developmental psychology.
Vygotsky was a literary scholar whose interest in development stemmed
from the issue of aesthetic synthesis. Piaget was a systematizer of mo
llusks who strove for harmony in the human world. Yet both saw the nee
d to understand development in its systemic unfolding.