Genette's work was intended to refine the notions of point of view and narrative perspective.
[4][5] A narrative where all information presented reflects the subjective perception of a certain character is said to be internally focalised.
The specific domain of literary theory which deals with focalisation is narratology, which concerns not only distinctions between subjective and objective focalisations but various gradations between them, such as free indirect speech or quasi-direct discourse.
Narratologists tend to have a difficult time agreeing on the exact definitions of categories in their field; hence its dynamic nature.
Jo Alyson Parker described such transient speech as a "roving trajectory of focalisation", as seen in the works of Virginia Woolf (such as Mrs Dalloway).