introverts

n.

性格内向的人( introvert的名词复数 )；

1. Do you think you are an extrovert or an introvert?
   你认为你是个性外向的人还是个性内向的人？
2. I am an introvert and introverts get drawn in.
   我是个内向的人而且内向是天生的。

A census of membrane-bound and intracellular signal transduction proteins in bacteria: bacterial IQ, extroverts and introverts.
Quiet: The Power of Introverts in a World That Can...
Why introverts can't always tell who likes them: multitasking and nonverbal decoding.
The influence of musical distraction of varying complexity on the cognitive performance of extroverts and introverts
Music while you work: the differential distraction of background music on the cognitive test performance of introverts and extraverts
Happiness, introversion–extraversion and happy introverts
The press of personality: A study of conversations between introverts and extraverts.
The distracting effects of vocal and instrumental music on the cognitive test performance of introverts and extraverts.
Person perception by introverts and extraverts under time pressure: Effects of need for closure.
Preferred stimulation levels in introverts and extroverts: Effects on arousal and performance.