Here are entered works on switching from one language to another by bilingual members of a speech community. Works on the simultaneous coexistence of two forms of the same language in a speech community are entered under the heading Diglossia (Linguistics). Works on using more than one writing system simultaneously are entered under the heading Script switching (Linguistics).
Scriptoria -- England -- History -- To 1500. / https://id.loc.gov/authorities/subjects/sh85118975 https://id.loc.gov/authorities/names/n82068148-781 https://id.loc.gov/authorities/subjects/sh2002006121 : Knapp, Ethan,
Here are entered works on the cognitive structure used for comprehension, perception, and interpretation of stimuli. Works on the internal or symbolic representation of social or physical environments, means-end relationships, or spatial relationships are entered under Cognitive maps (Psychology).