Who would study psychology if they didn't have some kind of problem?

Chapter 302 The Target Student Arrives
"You mean, besides being able to identify your opponent's lying intentions during negotiations, just like before—" Chonghui was referring to the time he argued with the short guy, "—you can also accurately identify the emotions of experimental subjects?"

Chonghui's last words were tinged with an uncontrollable upward tilt; he realized that his understanding of his junior brother's talent was not very clear.

Nan Zhuren blinked: "You don't know?"

Chonghui blinked; he genuinely didn't know.

"Let me demonstrate for you..."

Nan Zhuren simply grabbed the camera, pulled up the video file, and fast-forwarded.

"Look, this student over here showed a very obvious anxiety reaction when he saw pictures on the theme of 'test anxiety,' which aligns with our goal of emotional guidance. Look at his neck, throat, and the inside of his eyebrows, etc..."

The video playback was at normal speed. Even with Chonghui's skill level, he could barely make out the major changes in the neck and throat, but—

"What's changed in your eyebrows?" Teacher Zhao asked Chonghui on his behalf.

Nan Zhuren glanced at Zhao Xinyu, then at Chonghui.

Start slowing down frame by frame.

Then I pressed pause, repeatedly switched between the [forward] and [backward] buttons with my left hand, and drew a circle on the screen with my right finger: "Okay, that's it."

The video on the screen repeatedly switches between two frames.

Actually, even without Nan Zhuren specifically pointing it out, Chonghui could easily see it when the video was slowed down to this point.

However, he was able to distinguish it by slowing down the playback with an instrument, but what about Nan Zhuren?
Naked eye?

[Or perhaps he had thoroughly reviewed the scenario before coming out, which is why he was so familiar with it, and that's why this subject took so long...]

Let me give you another example.

But then he saw Nan Zhuren take Chonghui's video recorder and play the recording of the emotional manipulation of the female student that Chonghui had just experimented with.

"Let me see... Oh, senior, your subject has a few more questions than mine."

Nan Zhuren continued, "When your subject saw the picture of two classmates listening to music with the same pair of headphones, he didn't just show pleasure or relaxation, but also nostalgia."

“Look, the curve of her mouth, the dilation and contraction of her pupils, the direction of her gaze, etc. have all changed; and then, uh... her ears are a little red, her nostrils are widening because of her faster breathing, and she is blinking more frequently.”

"She must be reminiscing about her boyfriend? This kid's in a relationship too early," Nan Zhuren said with an air of certainty.

Chonghui blinked, watching Nan Zhuren speak for a while and then pause, speaking for a while and then pausing again. Each pause allowed him to accurately capture the micro-expression changes of the test students in the video.

Keep in mind that he was the one who conducted the experiment, and even if he reviewed the footage, he probably wouldn't be able to discern so much information in one go...

"Hmm? What's wrong, Teacher Zhao?"

Just then, Teacher Zhao suddenly made a hesitant expression, which Nan Zhuren noticed.

"This child didn't consult with you, Teacher Zhao, about relationship issues, did they... I'm sorry, I shouldn't have asked. Just pretend I didn't say anything."

Teacher Zhao shut her mouth, but this reaction was tantamount to saying everything.

Chonghui silently replayed the video recording that Nan Zhuren had just pointed out, frame by frame.

Half a day later, he slowly said.

"Well, let's remove this data for now. It's definitely not very standard. I didn't expect this to happen with the first subject." He controlled his tone, trying to remain calm. "And junior, if you encounter similar situations while collecting data, mark them down, and we can work through them together tonight. It will save a lot of effort..."

“Okay.” Nan Zhuren nodded without hesitation.

"It's okay if the pace is a little slower..." Chonghui added.

As Chonghui began replaying the video frame by frame for the third time, Nan Zhuren shrugged, then suddenly remembered something and whispered to Teacher Zhao:

"Teacher Zhao, has the list of students selected for data collection been released yet?"

Upon hearing this, Teacher Zhao immediately began searching for the file: "Ah, yes, Teacher Nan, would you like to see it?"

Nan Zhuren waved his hand: "No, I was just thinking that there might have been some problems with the previous personnel selection."

He organized his thoughts: "We use stratified sampling, selecting students from different grades and academic levels, focusing on students taking academic exams, right? What about physical education students? Or art students?"

"Teacher Nan, what do you mean..."

"What I mean is, for sports students and art students, their numbers are not as large as those of students taking academic exams, so a [sample survey] would not be as representative. A [census] would be better."

Teacher Zhao immediately understood what Nan Zhuren meant: "Teacher Nan means that all sports students and art students should be included in the list?"

Nan Zhuren nodded in satisfaction and turned to leave.

Teacher Zhao started typing rapidly on the keyboard, adding names to the list as instructed by Nan Zhuren. At the same time, her eyes kept glancing, intentionally or unintentionally, towards Chonghui's direction.

Although she wanted to accommodate Teacher Nan, she knew that Teacher Zhong was the one in charge.

Teacher Chong seems to be constantly preventing Teacher Nan from doing "unnecessary" things.

"Hey? Professor Chong, what are you... thinking about?"

However, Chonghui seemed oblivious to Teacher Zhao's actions and Nan Zhuren's words. He simply kept replaying his video over and over again.

Later on, his attention was no longer on the screen, but his eyes were glazed over, and his thoughts seemed to have wandered off somewhere.

"Huh? Ah... Are you talking to me? Is something wrong?" Chonghui was in a daze for a moment before being called back by Teacher Zhao.

Teacher Zhao blinked: "...No, I was just curious what you were thinking about so intently, Teacher Chong."

Upon hearing this question, Chonghui suddenly revealed a half-smile on his face.

"I'm wondering what the other senior and junior students in the research group will do after Junior Brother Nan comes back to Beidu with me."

The tall doctoral student pursed his lips.

"And what about the professors and students in the research group next door... I'm really looking forward to seeing how they react..."

……

After confirming that Nan Zhuren was familiar with the process, the data collection process was accelerated significantly.

One student after another came in and went out, and the camera recorded their emotional expressions and reactions.

all the best.

The only downside was that Nan Zhuren took a nap during his lunch break and discovered that this kind of simple conversation didn't count as "consultation time" and couldn't be used to boost his "monthly goals".

This made him feel rather unhappy.

However, when a tall student with a buzz cut finally appeared in sight with a knock on the door...

Nan Zhuren finally smiled for the first time today.

(End of this chapter)