In the context of the stages of personality development, both sigmund freud and erik erikson maintained the notion of fixation.
Basically, a fixation refers to an individual's obsessive drive that may or may not be acted on involving an object, concept etc.
It was introduced by Sigmund Freud who defined it as a persistent focus of the id's pleasure-seeking energies at an early stage of psychosexual development.
Hence, both Sigmund Freud and Erik Erikson maintained the notion of fixation on the stages of personality development.
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