Mediation
Thesis: this concept connects historical usage, contemporary interpretation, and AST relation with explicit certainty labels.
Established HistoryWhere this fits
Tradition: Dialectical and Cultural-Historical. Related thinkers: vygotsky, leontiev, rubinstein.
Mediation describes how human action and thought are organized through tools, signs, and social relations rather than direct stimulus-response chains. It foregrounds historical artifacts and institutions as active components of psychological development.
Relation to AST
Mediation helps AST situate neuro-affective adaptation within patterned social and symbolic environments instead of treating the nervous system as isolated.