Vygotsky formulated a theoretical framework for the most comprehensive
, inclusive and humane practice of special education. This article sta
rts with a brief historical review of paedology and defectology. These
two sciences existed in post-revolutionary Russia and were relevant t
o contemporary school psychology and special education. Vygotsky had d
eveloped many of his major concepts within paedology and defectology.
Vygotsky considers handicap as a sociocultural developmental phenomeno
n where compensation comes from socialization and cultural enlightenme
nt. He showed that a defect varies psychologically in different cultur
al and social environments. He introduced concepts of 'primary defects
' (organic impairment) and 'secondary defects' (distortions of higher
psychological functions due to social factors). In his search for alte
rnatives to the standardized tests applied to handicapped students, he
introduced the notion of the 'zone of proximal development'. In the a
rea of educating and upbringing of handicapped children, his innovativ
e idea was that the most efficient compensation for the loss or weakne
ss of natural functions can be achieved through the development of the
higher psychological functions. In Vygotsky's view, the main objectiv
e of special education should be the creation of a 'positive different
ial approach' that can fully develop a handicapped child's higher psyc
hological functions and overall personality. His idea that a disabled
child's development is determined by the social implications of his/he
r organic impairment creates a new perspective for socialization/accul
turation and cognitive development of children with special needs.