Full Idea
The two primary motivations of the adverbialist analysis are thought to be to avoid commitment to sensory particulars such as sense-data, and to allow us to hold on to a version of direct realism.
Gist of Idea
Adverbialism tries to avoid sense-data and preserve direct realism
Source
Barry Maund (Perception [2003], Ch.10)
Book Reference
Maund,Barry: 'Perception' [Acumen 2003], p.199
A Reaction
Maund says that the adverbialist's fears about indirect/representative theories are unfounded. My feeling is that neither account will do the job properly once we get a better account of consciousness. Maybe adverbialism is only for secondary qualities.