“Brain corruption” was named the term Oxford’s year 2024. This is defined as the “degradation of a person’s mental or intellectual state” that arises from seeing “trivial” content online, such as a Tiktok video.

It’s a term that is often joked about, but what If there is a grain of truth? This is the seemingly scary implications of a new study published by a large team of brain scientists based at Tianjin Division University in China.

What did this study find?

They scanned the brains of over 100 undergraduates and completed a survey on their habits of watching short online videos. The survey included statements such as “My life will be empty without a short video” and “Not able to watch a short video will be as painful as losing a friend,” indicating how much they agreed.

Interestingly, researchers found that those who felt most obsessed with short videos had significant differences in brain structure. These participants had more gray matter in the orbitofrontal cortex (OFC). This is an area near the front of the brain that is involved in decision-making and emotional regulation. Similarly, they had more gray matter in the cerebellum – the small cauliflower-shaped structures behind the brain play a role in movement and emotions.

The team concluded that this is bad news, as for Tiktok enthusiasts, having an oversized OFC could be a sign that it is described as “an increased sensitivity to rewards and stimuli associated with short video content.” They speculated that watching too many Tiktok videos could have led to this nerve distension.

Similarly, they suggested that enhanced cerebellum could help the brain process short video content more efficiently – perhaps the result of frequent rampages. This can create a reinforcement cycle. In this cycle, watching more videos strengthens these brain pathways and habits become even more ingrained.

But that’s not all. The team also performed a second brain scan to track participants’ brain activity while participants were resting with their eyes closed.

They found a greater synchronization of activity within multiple regions of the brain. These include the dorsal prefrontal cortex (areas involved in self-control), the posterior cingulate cortex (areas involved in thinking about oneself), the thalamus (a type of relay station for brain signals), and the cerebellum.

The researchers suggested that these functional brain differences could reflect a variety of issues among addiction participants. The issues include the tendency to overly social comparisons while having trouble leaving the video and watching them.

They also asked participants to fill out a survey on “promising temperament.” This is a factor measured by agreeing to statements such as “I strive to reach other people’s outstanding results.”

Interestingly, scientists have found that many links between video addiction and brain differences are also linked to a higher level of envy. This suggests that feeling of envy can make someone more likely to watch a short video. And over time, this habit can lead to potentially harmful changes in the brain.

Does Tiktok cause brain decay?

If you are an avid consumer of fun online videos, or a related parent, the idea that seeing habits can reconstruct brain structures is no surprise.

However, it is important to consider this study in a broader historical context in which new technologies and media have long been causing exaggerated neurological claims. It is also important to understand the deep limitations of research.

It’s been nearly 20 years Atlantic Ocean The magazine ran a cover function that asked, “Is Google making us stupid?” And, in a nutshell, the answer that was asserted was “Yes!” Author Nicholas Kerr lamented that he was once a “scuba diver in the sea of words,” but now, thanks to Google, he zipped “along the surface like a jet ski man.”

Countless brain imaging studies of questionable quality were also published in the same era. Many aim to demonstrate the disaster effect of the World Wide Web on our vulnerable minds.

A few years later, Professor Susan Greenfield, a neuroscientist professor of Baronness, launched a media campaign claiming that “mind change” (the impact of the internet and video games on the brain) is just as serious threat to humanity as climate change.

She even wrote dystopian novels about the dehumanizing effects of the internet, but received mixed reviews (One critic (I questioned whether this was one of the worst science fiction books ever written).

Almost 20 years later, we’re fine. At least I don’t think our brains have been transformed into mash. But of course, these previous horrors were before the appearance of Tiktok. Perhaps there is something uniquely damaging about the types of short, scrollable, meaningless content available today.

I asked Professor Peter Etchellsif this is plausible, expert on the psychological impact of digital technology at Bathspa University. “As far as I know, there is no good science to support the idea that short videos are either tangible or uniquely bad in terms of their impact on the brain,” he says.

read more:

Is short video brain research a good science? Not so, but the evidence suggests that it is not.

What is wrong with this research?

Let’s take a look at some of the limitations of the research. If the goal was to prove that seeing tiktok is harmful to the brain, a more effective approach would be to scan participants’ brains and then consume different amounts of harmful content.

However, this study is completely cross-sectional, meaning that only a single snapshot was captured in time. This was not a pre- and post-comparison of causes and effects.

Or, as Etchell says: “[From this study] I can’t say anything about whether watching a short video will cause brain changes, or whether certain types of brain structures precede certain types of video consumption.

“This research doesn’t really add anything that will help us understand how digital technology affects us.”

Even if we accept the speculative leap of researchers that Tiktok’s videos may have caused the brain changes they observed, there are still some issues to consider.

First, the researchers searched the entire brain for differences that correlated with the scores on the video addiction scale. This approach is a common problem in brain imaging studies as it increases the risk of finding false positives. In other words, the more comparisons you make, the more likely you will stumble over random differences that seem important but are actually just a coincidence.

Second, even if we accept that the observed brain differences are real and caused by seeing Tiktok, interpreting them involves a lot of speculation. Researchers enveloped an increase in brain synchronization (known as regional homogeneity (Reho). However, Rejo itself is not inherently a good or bad thing. In fact, other studies have associated with an increase in Reho in certain brain regions. positive Results such as results observed during meditation training.

Perhaps the biggest flaw in the study relies on questionable survey-based measures of short video addiction that lacks strong scientific validity.

As Etchells put it, “Short video addiction is essentially an invented term, not a formal diagnostic clinical disorder.”

Taken together, these issues suggest that we should not be overly concerned that Tiktok fundamentally shapes the brains of young people in harmful ways.

That said, the excessive amount of time spent watching frivolous videos can still be a problem for some. However, it is more productive to focus on developing healthy media habits rather than worrying about brain changes or addiction.

“In many cases, when research like this hits the news, it’s a good opportunity to pause and reflect on whether we’re happy with the use of the technology,” says Etchells.

“If there’s concerns there, it’s worth thinking about what you can do to eliminate your frustration, knowing that you’ll benefit a lot from these technologies.”

About our expert, Professor Pete Etchell

Pete is a professor of psychology at Bath Spa University. His research focuses on how playing video games and using social media affects our mood and behavior. He is the author of I got lost in a good game We are currently investigating whether game mechanics can promote gambling behavior in other parts of our lives.

read more: