Final answer:
The phrase that completes the sentence is 'desexualized'. This term is used in psychology to describe when motivations and energies linked with primal urges in childhood are redirected towards nonsexual activities.
Step-by-step explanation:
When a motive has become independent of their origins in childhood, they are said to be 'desexualized'. In psychoanalytic theory, desexualization refers to the process where the energy linked with sexual instincts is diverted to nonsexual activities, such as creative or intellectual pursuits. This process begins in childhood and progresses into adulthood, allowing us to redirect our primal urges into more socially acceptable behaviors.
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