Social media has completely changed how information flows, opening the door to both new opportunities and serious risks. It has given a platform to voices that were once ignored, but at the same time, it has made it much easier for false information to spread alongside the truth. As a result, misinformation can spread quickly and influence everything from public opinion to elections to decisions made during crises.
But misinformation isn’t just a problem of technology or weak regulation, it’s deeply rooted in human psychology. The way we think, what we believe, and how we interact with others all play a role in how false information spreads.
At the centre of this issue is how our minds work. People don’t naturally prioritise accuracy; instead, we rely on mental shortcuts known as heuristics—to make quick decisions. These shortcuts help us deal with the overwhelming amount of information we face every day, but they can also lead us to accept things without properly questioning them.
One of the most powerful of these biases, however, is confirmation bias, and this is our tendency to seek, interpret, and recall information that confirms our existing beliefs and attitudes. Social media has enhanced this tendency through its algorithms, which allow us to receive information based on our preferences, and we tend to see more and more information we agree with over time.
Studies show that people are far more likely to engage with and share content that aligns with their beliefs. This creates echo chambers where opposing opinions are filtered out or ignored. In these environments, misinformation can spread easily because it isn’t challenged, and repeated exposure makes it feel more legitimate.
Another related mental shortcut is the availability heuristic. This is when we judge something as true or likely simply because it comes to mind easily. In a digital world where the same information is repeated across platforms, repetition can create the illusion that something is true. This is known as the illusory truth effect when familiarity is mistaken for accuracy.
We saw this clearly during the COVID-19 pandemic, when repeated exposure to unverified claims led many people to accept false information as fact. The sheer volume of content made it difficult for people to carefully evaluate what they were seeing. But thinking patterns alone don’t explain everything, emotion plays an even bigger role.
Research shows that emotionally charged content, especially things that spark anger, fear, or outrage, is much more likely to be shared. Social media platforms are designed to reward engagement, and emotional content generates the most reactions, whether that’s likes, shares, or comments.
This has created what could be called an “outrage economy,” where strong emotions become a kind of social currency. People aren’t just sharing information, they’re expressing who they are, what they believe, and what they stand for.
In highly polarised environments, this becomes even more intense. People develop strong negative feelings toward opposing groups, a phenomenon known as affective polarisation. In these situations, misinformation isn’t just believed it’s used as a tool to strengthen group identity and discredit others.
Because of this, sharing misinformation is rarely a purely logical decision. It’s often driven by emotion, social pressure, and identity. When something aligns with our beliefs and makes us feel strongly, we’re much more likely to share it often without stopping to verify it.
This connects to the idea of social identity. According to Social Identity Theory, a big part of how we see ourselves comes from the groups we belong to, whether political, cultural, religious, or otherwise. Social media constantly reinforces these identities through interaction and shared content.
In this context, sharing information becomes symbolic. It’s not just about facts it’s about belonging. Whether something is true can become less important than what it says about our loyalty to a group. This is especially clear in like-minded communities where opposing views are discouraged. In these spaces, misinformation spreads quickly because it’s validated by the group rather than evidence.
Another key factor is social proof that we see something as credible if others seem to believe it. When we see posts with lots of likes or shares, we’re more likely to trust them. Social media makes these signals highly visible, strengthening their influence.
On top of that, the constant stream of information creates cognitive overload. There’s simply too much to process, and people don’t have the time or energy to evaluate everything carefully. So instead, we rely on instinct rather than critical thinking which makes us more vulnerable to misinformation.
In this type of environment, misinformation does not have to be entirely believable. It simply has to be familiar, believable, and evocative. Ultimately, the dissemination of misinformation is not an unusual phenomenon but a natural occurrence, arising from the intersection of human psychology and technology.
If we hope to combat misinformation, we first have to begin understanding it. After all, if misinformation starts in the mind, then so too does any solution to this problem.
(to be continued)
The writer is a Professor and former Chair, Department of Journalism and Mass Communications, Savanah State University, USA. E-mail: [email protected]
