According to my research on scientific terminology, I can say that based on the information provided within the question developmental scientists will referred to this as an example of cultural evolution. Basically describing the way certain aspects such as technology and smart phones shaped the way evolved as a society/culture.
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The therapist is likely making use of age regression. This
is involved with therapy in which the therapist is likely to access the childhood
memory of an individual and that they are likely to be accessed increasingly. This
includes the feelings and the thoughts of the individual undergoing with the
therapy.