Full Idea
The atomist view is that causation is limited to collisions among corpuscles (which is 'mechanism'), and the only bodily qualities are those found at the microcorpuscular level; sensible qualities are in fact sensations.
Gist of Idea
Atomists say causation is mechanical collisions, and all true qualities are microscopic
Source
Robert Pasnau (Metaphysical Themes 1274-1671 [2011], 05.4)
Book Reference
Pasnau,Robert: 'Metaphysical Themes 1274-1671' [OUP 2011], p.91
A Reaction
[Part of a full summary of atomism by Pasnau]