For example, one of the issues for the nature theory is that
homosexuality comes from the genes, and it is something that is being
researched a lot nowadays, which explains that people who have a different gender
from their sex are actually born that way so it does not include any environmental
influences. Further issues include criminal behaviours, likelihood to divorce
and aggressive behaviour which can be proven by these “behavioural
genes” once the researchers have completed their research to justify them.
On the other hand, the behavioural genes can also be used to explain the
behaviours with fraternal twins. When fraternal twins are separated, they show
the same similarities in behaviour and response as if they have never been
apart. This shows that their behaviour is biological and not caused by nurture
because even when they are not together they have the same behavioural factors
as each other.
Nurture refers to everything that happens within the
environment that influences a child from young. This involves the way you were
raised (socialisation) and the way they are treated by significant others in
their lives such as parents, teachers and peers. All of these influences goes
towards the development of the personality.
The term nature includes personality and behaviours that we
are born with such as left-handedness and the genes we have inherited. Factors such
as being shy or outgoing, intelligence and being able to catch certain illnesses
and diseases bring the nature versus nurture debate into light.
Nature is when we genetically inherit our personality,
development, intelligence and behaviour from our parents whereas nurture is
developed through our interaction with the environment. Behavioural
psychologists believe that we are born as ‘blank slates’ and our behaviour and
personality develop from our interactions with the environment. On the other hand,
biological psychologists believe that many of the influences on our development
come from our genes and the influence of biochemistry. There are some people
who also believe that there is an interaction between the two factors.