<P> In Freudian psychology , psychosexual development is a central element of the psychoanalytic sexual drive theory , that human beings , from birth , possess an instinctual libido ( sexual energy ) that develops in five stages . Each stage -- the oral , the anal , the phallic , the latent , and the genital -- is characterized by the erogenous zone that is the source of the libidinal drive . Sigmund Freud proposed that if the child experienced sexual frustration in relation to any psychosexual developmental stage , he or she would experience anxiety that would persist into adulthood as a neurosis , a functional mental disorder . </P>
<P> In Freudian psychology , psychosexual development is a central element of the psychoanalytic sexual drive theory , that human beings , from birth , possess an instinctual libido ( sexual energy ) that develops in five stages . Each stage -- the oral , the anal , the phallic , the latent , and the genital -- is characterized by the erogenous zone that is the source of the libidinal drive . Sigmund Freud proposed that if the child experienced sexual frustration in relation to any psychosexual developmental stage , he or she would experience anxiety that would persist into adulthood as a neurosis , a functional mental disorder . </P>
who called the stages of development psychosexual stages
who called the stages of development psychosexual stages
Sigmund Freud
Sigmund Freud