Although the term itself is not new, fake news presents a growing threat for  societies across the world.

Only a  small amount of fake news is needed  to disrupt a conversation, and at extremes it can have an impact on democratic processes,  including elections.

But what can we do to avoid fake news, at a time when we could be waiting a while for  mainstream media  and  social networks  to step up and  address the problem?

From a psychology perspective, an important step in tackling fake news is to understand why it gets into our mind. We can do this by  examining how memory works  and  how memories become distorted.

Using this viewpoint generates some tips you can use to work out whether you’re reading or sharing fake news – which might be handy in the coming election period.

How memory gets distorted at the source

Fake news often relies on  misattribution  – instances in which we can retrieve things from memory but can’t remember their source.

Misattribution is one of the reasons advertising is so effective. We see a product and feel a pleasant sense of familiarity because we’ve encountered it before, but fail to remember that the source of the memory was an ad.

One study  examined headlines from fake news published during the 2016 US Presidential Election.

The researchers found even one presentation of a headline (such as “Donald Trump Sent His Own Plane to Transport 200 Stranded Marines”,  based on claims shown to be false) was enough to increase belief in its content. This effect persisted for at least a week, was still found when headlines were accompanied by a factcheck warning, and even when participants suspected it might be false.

Repeated exposure can  increase the sense that misinformation is true. Repetition creates the perception of group consensus that can result in collective misremembering, a phenomenon called the  Mandela Effect.

It might be harmless when people collectively misremember something fun, such as a  childhood cartoon (did the Queen in Disney’s Snow White really NOT say “Mirror, mirror…”?). But it has serious consequences when a false sense of group consensus contributes to  rising outbreaks of measles.

Scientists have investigated whether  targeted misinformation can promote healthy behaviour. Dubbed false-memory diets, it is said that false memories of food experiences can encourage people to  avoid fatty foods,  alcohol  and even  convince them to love asparagus.

Creative people that have a strong ability to associate different words are  especially susceptible to false memories. Some people might be more vulnerable than others to believe fake news, but  everyone is at risk.

How bias can reinforce fake news

Bias  is how our feelings and worldview affect the  encoding and retrieval of memory. We might like to think of our memory as an archivist that carefully preserves events, but  sometimes it’s more like a storyteller. Memories are shaped by our beliefs and can function to  maintain a consistent narrative rather than an accurate record.

An example of this is selective exposure, our tendency to seek information that  reinforces our pre-existing beliefs  and to avoid information that brings those beliefs into question. This effect is supported by evidence that television news audiences are  overwhelmingly partisan  and exist in their own echo chambers.

It was thought that online communities exhibit the same behaviour, contributing to the spread of fake news, but this  appears to be a myth. Political news sites are often populated by people with  diverse ideological backgrounds  and echo chambers are  more likely to exist in real life than online.

Our brains are wired to assume things we believe  originated from a credible source. But are we more inclined to remember information that reinforces our beliefs?  This is probably not the case.

People who hold strong beliefs remember things that are relevant to their beliefs but they remember opposing information too. This happens because people are motivated to defend their beliefs against opposing views.

Belief echoes are a related phenomenon that  highlight the difficulty of correcting misinformation. Fake news is often designed to be attention-grabbing.

It can continue to shape people’s attitudes after it has been discredited because it produces a vivid emotional reaction and builds on our existing narratives.

Corrections have a much smaller emotional impact, especially if they require policy details, so should be  designed to satisfy a similar narrative urge  to be effective.

Tips for resisting fake news

The way our memory works means it might be impossible to resist fake news completely. But one approach is to start  thinking like a scientist. This involves adopting a questioning attitude that is motivated by curiosity, and being aware of personal bias.

For fake news, this might involve asking ourselves the following questions:

  • What type of content is this?  Many people rely on social media and aggregators as their main source of news. By reflecting on whether information is news, opinion or even humour, this can help consolidate information more completely into memory.
  • Where is it published?  Paying attention to where information is published is crucial for encoding the source of information into memory. If something is a big deal, a wide variety of sources will discuss it, so attending to this detail is important.
  • Who benefits?  Reflecting on who benefits from you believing the content helps consolidate the source of that information into memory. It can also help us reflect on our own interests and whether our personal biases are at play.

Some people  tend to be more susceptible to fake news  because they are more accepting of weak claims.

But we can strive to be more reflective in our open-mindedness by paying attention to the source of information, and questioning our own knowledge if and when we are unable to remember the context of our memories.

Written by Julian Matthews. Republished with permission of The Conversation.