How did Auguste Comte’s ideas anticipate later behaviorism?

Auguste Comte’s positivist philosophy anticipated key tenets of 20th-century behaviourism primarily through his insistence on objective observation and his skepticism toward internal mental states.1

Comte argued that the study of human phenomena should be restricted to observable facts and the formulation of general laws, mirroring the behaviourist rejection of unobservable mental processes. Specifically, he was highly critical of introspection, believing that the act of attending to one's own mental states inevitably distorts them, rendering such methods scientifically unreliable.1

Furthermore, Comte’s systemic approach sought to integrate psychology into the natural sciences by positioning it as a branch of biology—specifically brain neurophysiology—and sociology. By prioritizing external, verifiable data over subjective experience, Comte laid a methodological foundation that aligns with the core principles of behaviourist inquiry.1