The document discusses the influence of heredity and environment on the development of intelligence, highlighting that both play crucial roles. Genetic factors are emphasized through studies of twins and adoption, indicating that IQ can be inherited, while environmental elements such as schooling, nutrition, and social surroundings also impact cognitive abilities. Research reveals that children with better nutrition and formal schooling tend to exhibit higher IQ scores, whereas those with adverse conditions may experience delays in mental development.

1. POOJA SEN
M.SC NURSING( MHN)

2. • Difference and similarities in intelligence
among individuals are explained by the
level at which herdity and environment
factors have influenced the development
of intelligence.
• Heredity and Environment play an important role in the
development of intelligence. Parents can influence their
offspring both by direct genetic transmission and the
kind of environment they provide .

3. Heredity .......
• Intelligence abilities run along
with families,gene concerned
with intelligence are passed from
parents to their children, children
born of parents with High IQ are
likely to have a high IQ ,some of
cognitive function such as
processing information,
memorization.

4. Heredity ......
Twins and adoption studies explain the role of hereditary and
environment factor in development of intelligence,some of
the facts explained by research studies.............
• Identical twins studies showed that
Similar IQ for the twins even when they
are in different environment , according to
this study genetic factor act as the primary
Factor for development of intelligence.

5. Heredity ......
• Adoption studies showed that adopted children also
heaving maximum intelligence capacity belongs to
their biological parents.

6. Environment ......
Intelligence is not entirely influenced by
genetic factor it affected by Schooling,Play,
Nutrition,Family and Social Surrounding.
• Children with proper nutrition
exhibit higher IQ scores than mal nourished
children.

7. Environment ......
• Many studies have shown that fetal alcohol
syndrome delays language development
and reduce mental development.
• Formal schooling influencing intelligence
many studies have reported that attending
regular school pramote intellectual Growth.
• Studies shown that IQ of school drop out
decline the level of IQ .