'Inflexible thinking style' behind why some people won't accept vaccines, says new research

An "inflexible thinking style" could explain why some people are hesitant about taking a vaccine, new research  has revealed. It is a finding that could have implications for public health policy, especially during pandemics.

Researchers  conducted the first study evaluating the relationship between COVID-19 "vaccine hesitancy and cognitive flexibility."

Cognitive flexibility is how good people are at responding to changing situations and changing feedback, and especially when rules change. Inflexibility is generally described as the incapacity to adjust one's behavior in response to changing circumstances, update one's knowledge, and maintain optimum decision-making.

This explorative study found that those with greater vaccine hesitancy persisted with the same erroneous responses during a computerized test of flexible thinking, even when they received direct feedback telling them that their responses were no longer correct. This response pattern is the hallmark of a cognitively inflexible thinking style.

Vaccine hesitancy is quite common, occurring in approximately 12% of the population and may occur for multiple underlying reasons. In this study, researchers found the relationship between it and cognitive inflexibility can be predicted through an online test. This may be of value for public health policy in identifying this specific group.

The research, conducted between June 2021 and July 2022 after lockdown from COVID-19 was eased, has just been published in the Journal of Psychiatric Research.

L. Pellegrini et al, The inflexible mind: A critical factor in understanding and addressing COVID-19 vaccine hesitancy, Journal of Psychiatric Research (2024). DOI: 10.1016/j.jpsychires.2024.09.028