"Ah, but if you got nothing to eat for ever so long?" said Tom, his imagination becoming quite active under the stimulus of that dread.
The natural strength and firmness of his nature was beginning to assert itself, urged by the double stimulus of resentment against his aunts, and the sense that he must behave like a man and take care of his mother.
In like manner, Mr. Stelling had a fixed opinion that all boys with any capacity could learn what it was the only regular thing to teach; if they were slow, the thumb-screw must be tightened,—the exercises must be insisted on with increased severity, and a page of Virgil be awarded as a penalty, to encourage and stimulate a too languid inclination to Latin verse.
Chapter II The Torn Nest Is Pierced by the Thorns There is something sustaining in the very agitation that accompanies the first shocks of trouble, just as an acute pain is often a stimulus, and produces an excitement which is transient strength.
The air of excitement that hung about him was but faintly due to good cheer or any stimulus but the potent wine of triumphant joy.
The aunts and uncles appeared to have been in warm discussion when the brother and sister entered,—both with shrinking reluctance; for though Tom, with a practical sagacity which had been roused into activity by the strong stimulus of the new emotions he had undergone since yesterday, had been turning over in his mind a plan which he meant to propose to one of his aunts or uncles, he felt by no means amicably toward them, and dreaded meeting them all at once as he would have dreaded a…
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The Psychs say it will stimulate a lot of the patterns we need.
James Dashner -- The Scorch Trials
Done to stimulate responses in the killzone, where the Flare does its damage.