this post was submitted on 05 Jun 2024
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Tik Tok's design clearly taps into psychological principles that drive addiction. The infinite scroll and unpredictable content rewards work like slot machines in a dopamine-driven feedback loop. This keeps users glued to their screens, often without realizing how much time has passed. The For You feed continuously adapts to like a million data tracking points, and spits out a constant stream of whatever content it deems most likely to keep you scrolling. Neuroscientists have pointed out that heavy TikTok use can reduce attention spans and increase the need for instant gratification which are effects tied to dopamine stimulation. Obviously bytedance isn't going to publicize the proprietary research they used to accomplish this. But the app clearly uses these engagement-maximizing techniques. That also goes for Instagram, Facebook, YouTube, Reddit (they wish lol) and the rest of them. But in tiktok's case, it's an export from an adversarial nation, and you only need to look at the internally approved version of tiktok for Chinese users, which promotes a completely different kind of content.
Which neuroscientists are saying that? All the articles I’ve found referring to “TikTok Brain” quote one Dr. Patrick Porter. And I have become quite wary of trusting one man’s word, even that of a professional, since the whole vaccines cause autism thing.
Here are several studies, I have not read all of them but they are what I found:
https://theses.ubn.ru.nl/items/277e3219-85d2-41ac-92f3-4ac3745c1d58
https://www.mdpi.com/1660-4601/18/16/8820
https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2021.641673/full
https://theoxfordblue.co.uk/tiktok-and-the-death-of-the-attention-span/
The first one is one that I didn’t find in my own time. It correlates heavy usage of TikTok with a decreased ability to block one’s own distracting thoughts. Certainly interesting, and worth further study, but the authors appear to have equated that correlation with a causal effect. They did not satisfactorily delineate between someone who has a poor attention span and is attracted to TikTok because of it and someone with a poor attention span caused by TikTok.
The second and third studies I have already addressed in my other comments. The second study being the Chinese one that demonstrated a correlation between heavy TikTok usage and memory loss, anxiety, stress, depression, etc. Again, important findings, but crucially not causal. The third is the meta analysis that refused to make a statements regarding detrimental effects of TikTok usage.
The fourth isn’t a study, it’s an article. This article does link to several studies, however the only one the directly mentions TikTok is, again, that same study of roughly 3,000 Chinese students. The rest of the studies mentioned are targeting social media use in general.