How does fear over come imagination?

The researchers found that using imagination to reduce threat fear response worked. When subjects were re-exposed to the threat, both their threat-related brain activity and physiological responses were reduced. These reductions were equally effective as those of the exposure therapy group.

Explanation:

the antonym of esurient is abstemious.

the narrator is saying that the old lady made her feel uncomfortable. you know this because they say "i found that rather irksome", "perhaps it was her being so upright and trim", and "i don't think it was that, because i thought that quaintly pleasant." hope this !