Nathalie Sarraute describes tropisms as the “interior movements that precede and prepare our words and actions, at the limits of our consciousness.” They happen in an instant, and apprehending them in the rush of human interactions demands painstaking attention. Tropisms are the key to all of Sarraute’s work.
Since Sarraute is also a central writer in the nouveau roman, it is interesting to compare her “tropisms” to Robbe-Grillet’s Snapshots. In both works it is commonly asserted that they show the sources of the theory and technique of these writers (although one critic referred to R-G’s work as “aesthetic squiggles”).
The comparison is apt but I will suggest that Robbe-Grillet is more a noun while Sarraute is more a verb.