The second category focuses on nonsocial or general processing.
From the en.wikipedia.org
The current study did not directly assess extravert's and introvert's enjoyment of rewarding and nonrewarding social and nonsocial situations.
From the sciencedaily.com
Because they can obtain food free of effort, their interests are redirected toward nonsocial activities, such as stacking blocks, flipping light switches or collecting bottle tops, Reser said.
From the sciencedaily.com
More examples
Nongregarious: of plants and animals; not growing or living in groups or colonies; "solitary bees"