In fact, telepathy was better understood than some simpler mental reactions.

Then it boiled down to one simple reaction: dear Rose, I've got to find you.

And there were not two simple reactions to the verdict but a therapist's checklist of them.

This simple reaction to light results in an animal spending most of its time on the dark side of the dish.

This simple reaction of physical elements had cost many a soldier his life as it revealed his position.

She stared at him silently, and he thought how that simple reaction spoke so deeply of her intelligence.

This series of simple reactions is known as the reaction mechanism.

But a close examination of the facts makes such a simple reaction difficult to justify.

Second, public opinion varied widely on the issue, and was not a simple positive or negative reaction.

"When we feel happy, going with simple first reactions seems adequate for judging the world."