The faces were purported to be happy, sad, surprised, fearful, disgusted, angry or neutral, and the participants categorized them as such.

这些脸的表情有的是高兴的、有的是悲伤的、有的是惊讶的、有的是害怕的、有的是厌恶的、有的是愤怒的、有的是中性的。