Shawna Longo is a longtime music teacher in New Jersey.

肖娜·朗戈是新泽西州的一名长期音乐教师。

"It is connected to our sense of position," explained Longo.

隆戈解释道：“这与我们的方位感有关。”

"It tells us whether a joint is straight or not," said Longo.

“我们通过方向感得知关节是否伸直，” 隆戈说。

"People think their hand is wider than it actually is," said Longo.

隆戈说：“人们认为自己的手比实际要宽。”

With their hands placed palms down under a board, Longo's team gave the instruction to point to their knuckles and fingertips with a marker.

该团队将人们的手掌放在一块板子下，然后让他们用记号笔指向自己指关节和指尖。

Longo said our brains "see" areas based on our sense of touch, with the stronger the sense of touch in a specific body part, the bigger that body part seems.

隆戈说，大脑 “看到” 的区域是基于触觉，身体某个特定部位的触觉越强，这个部位看起来就越大。