The Social Psychology of Group Delusions
Dr. Mark Reimers
February 9, 2025
Dr. Mark Reimers is a quantitative neuroscientist at Michigan State University. His topic was “The Social Psychology of Group Delusions.”
He defined a “delusion” as a belief or impression firmly maintained despite being contradicted by what is generally accepted as reality or rational argument. This has usually been associated with disordered thinking — psychosis or mental illness.
Yet most people are deluded about some things, at some times. A good example is when one is “madly in love,” a fairly common phenomenon. Reimers noted that the brain activity there has been found to resemble that in the brains of addicts.
But he also discussed what he called “everyday delusions.” A basic one is self-importance. Most people believe they are above average (mathematically impossible). Such beliefs help us navigate through life. False memories are a part of it — we love to tell stories, and to embellish them, making ourselves more central, and our memories are actually continually rejiggered to comport with that.
Another topic was “dogmatic thinking,” with the key factor being not the content of a belief, but how one believes it. Dr. Reimers referenced an impatient cognitive style — jumping to conclusions, unwilling to consider nuance. And such cognitive and personality traits govern the likelihood of adopting an ideology, like QAnon.
Key indicators there include bold, sweeping language; considering other people not just wrong, but bad; insulting them. There’s a heavy use of abstract moral nouns like “necessity” and “freedom.”
Important in all this is not so much the validity of the beliefs, but rather keeping in good stead with your group. This is especially true with religion — also helping us deal with what some might see as the meaninglessness of existence. Countered by imagining there’s a God who loves us.
The social element is particularly important given how many people feel anxiety about their social connections. Feeling isolation, resentment, humiliation, and economic stress. All amplified socially. And Dr. Reimers noted that such stress itself alters our cognition style.
He opined that this is increasingly salient in America, with hollowed out opportunity for working class people. Who can’t think clearly about their life situation. There’s a breakdown in shared societal consensus. And while modern society disperses us, social media creates the equivalent of the mob.
So — how can we combat all this? Dr. Reimers pointed to two persuasion techniques that have been developed, which seem to have some success in changing at least some minds. “Street epistemology” employs the Socratic method, starting by asking people, for example, how confident they are in their beliefs. “Deep canvassing” begins by trying to connect with people as individuals, following up on concerns they express.
Recap prepared by Frank S. Robinson
