Presently, a number of tiny electrodes were adhering to his temples and to other portions of his body, and a minute microphone was clinging to the skin over his heart. These devices terminated in cables that hung from the ceiling. A sphygmomanometer sleeve was wrapped tightly around his left upper arm, its rubber tube trailing to a small black box clamped to the frame of the cot. Another cable left the box and joined the others.
So—Maitland thought—Swarts could record changes in his skin potential, heartbeat, and blood pressure: the involuntary responses of the body to stimuli.
The question was, what were the stimuli to be?
"Your name," said Swarts, "is Robert Lee Maitland. You are thirty-four years old. You are an engineer, specialty heat transfer, particularly as applied to rocket motors.... No, Mr. Maitland, I'm not going to question you about your work; just forget about it. Your home town is Madison, Wisconsin...."
"You seem to know everything about me," Maitland said defiantly, looking up into the hanging forest of cabling. "Why this recital?"
"I do not know everything about you—yet. And I'm testing the equipment, calibrating it to your reactions." He went on, "Your favorite recreations are chess and reading what you term science fiction. Maitland, how would you like to go to the Moon?"
Something eager leaped in Maitland's breast at the abrupt question, and he tried to turn his head. Then he forced himself to relax. "What do you mean?"