However, nativists also argue that maturation governs the emergence of attachment in infancy, language acquisition and even cognitive development as a whole.
At the other end of the spectrum are the environmentalists – also known as empiricists (not to be confused with the other empirical / scientific approach).
Although it is true that fraternal twins raised apart have remarkable similarities in most respects, still the intervention of the environment have caused several differences in the way they behave.
In the end, we are still left with the confusing question: Are we born this way, or do we behave according to our life experiences?
One of the hottest issues against nature theory is that there may be an existing "gay gene", which explains that gays are actually born that way.
Another issue is that the criminal acts, tendency to divorce and aggressive behavior causing abuse can be justified by the "behavioral genes" once the researchers have proven their existence.The coding of genes in each cell in us humans determine the different traits that we have, more dominantly on the physical attributes like eye color, hair color, ear size, height, and other traits.However, it is still not known whether the more abstract attributes like personality, intelligence, sexual orientation, likes and dislikes are gene-coded in our DNA, too.It has long been known that certain physical characteristics are biologically determined by genetic inheritance.Color of eyes, straight or curly hair, pigmentation of the skin and certain diseases (such as Huntingdon’s chorea) are all a function of the genes we inherit.These facts have led many to speculate as to whether psychological characteristics such as behavioral tendencies, personality attributes, and mental abilities are also “wired in” before we are even born.Those who adopt an extreme hereditary position are known as nativists.Another example of nature is Freud's theory of aggression as being an innate drive (called Thanatos).Characteristics and differences that are not observable at birth, but which emerge later in life, are regarded as the product of maturation.The environment where you grew up may have a lasting effect or influence on that way you talk, behave and respond to the things around you.One of the oldest arguments in the history of psychology is the Nature vs Nurture debate.