Perseveration in a sentence as a noun

Has he any sense of self perseveration not blottoed by *******?

The idea of hyperfocus is very popular among the self-diagnosed and on internet forums dedicated to ADD, but the term "hyperfocus" doesn't actually appear in any of the medical literature I can find, with the exception of a few books that seem to suggest that "hyperfocus" is more likely related to the idea of perseveration, which is a deficit in set shifting ability.

Perseveration definitions

noun

the tendency for a memory or idea to persist or recur without any apparent stimulus for it

noun

the act of persisting or persevering; continuing or repeating behavior; "his perseveration continued to the point where it was no longer appropriate"

See also: perseverance persistence