The most common method for treating sleep disorders in the United States is hypnosis

Sean yawned during a meeting and within a few minutes several others attending the meeting began to yawn. The brain cells activated in others by Sean's yawn are called ______

Fill in the blank with correct word

Wilhelm Wundt's trained introspectors had to make 10,000 practice observations before they were allowed to participate in an actual study

Indicate whether this statement is true or false.