Changes

[[Freud]] distinguished between two uses of the term "[[unconscious]]."<ref>{{F}} "[[Works of Sigmund Freud|The Unconscious]]." 1915e. [[SE]] XIV, 161</ref>

As an ''adjective'', it simply refers to ''mental processes'' that are not the [[subject]] of [[conscious]] attention at a given moment.

As a ''noun'', it designates one of the ''psychical systems'' which [[Freud]] described in his first theory of [[psyche|mental]] [[structure]] (the "[[unconscious|topographical model]]").