Young people often face daily challenges in terms of concentration, emotional regulation, and planning. A recent study published in Psychological Reports found that a rigorous mindset may bridge the gap between certain personality traits and everyday cognitive deficits. The findings of this study suggest that psychological inflexibility plays a mediating role in how anxiety and goal orientation relate to a person’s perceived mental efficiency.
The human brain continues to develop even into our 20s. During this time, the prefrontal cortex is still maturing. This brain region is responsible for executive function, the high-level mental skills that allow people to navigate complex environments. These functions include planning future actions, prioritizing tasks, ignoring distractions, and controlling emotional outbursts.
When these prefrontal systems operate below peak efficiency, people can experience what psychologists call prefrontal symptoms. In everyday life, these symptoms appear as ordinary mental errors, rather than serious clinical defects. Some people may forget appointments, have trouble completing difficult schoolwork, or get into an argument with a friend out of sudden frustration. These represent natural variations in how well people manage the high demands placed on their cognitive resources.
Most people notice these blunders occasionally, but some report them more frequently and experience greater frustration as a result. Researchers wanted to know why some young people seemed so susceptible to these mental slips, while others were able to overcome stress more easily. Previous research has suggested that individual differences in personality are important, but the exact cognitive mechanisms have remained unclear.
Daniela Bataras, a researcher at the University of Valencia in Spain, led a new study to uncover these connections. Bataras collaborated with scientists from universities in Spain and Ecuador. They proposed that the way a person mentally copes with internal pain may serve as the missing link between personality and everyday mental performance. They base their research on specific personality theories that distinguish between biologically based temperament and learned personality traits.
The team focused on two specific personality aspects. First, we focused on harm avoidance, which functions as a basic temperament trait. This dimension represents the basic sensitivity to threat, punishment, and potential danger. People high in harm avoidance fear uncertainty, are hypervigilant, and often spend excessive energy anticipating negative outcomes.
Second, the researchers examined autonomy. Unlike harm avoidance, autonomy is considered a personality trait that is formed through experience and learning. It represents goal orientation, independence, and the ability to adapt an individual’s behavior to specific situations. In general, high self-motivation protects individuals from undue stress by fostering a sense of personal responsibility.
To understand the pathway between these traits and cognitive decline, researchers assessed psychological inflexibility. Psychological inflexibility describes a rigid avoidance-based response pattern to negative thoughts and emotions. Instead of accepting and moving forward with unpleasant emotions, mathematically rigid people try to suppress or escape them. This emotional avoidance requires significant cognitive effort and often diverts a person’s attention from their actual goals.
Researchers recruited 501 undergraduate students attending a university in Loja, Ecuador. Participants, with an average age of just 21 years, completed a supervised session that included several standardized questionnaires. The survey asked people to rate their agreement with statements that described their personal habits, emotional reactions, and recent mental errors.
To measure personality, participants completed an inventory that asked about their tendency to worry and their ability to stay focused on long-term goals. Another study measured psychological flexibility by asking people how often their daily lives are disrupted by negative emotions. Finally, the researchers used a symptom inventory that tracked how often participants experienced memory problems, impulsive reactions, or difficulty making decisions.
The researchers used a special statistical model to look for indirect paths between survey responses. They tested whether psychological inflexibility acts as an intermediate stepping stone between a person’s basic personality and everyday mental performance. Gender differences were controlled for in the analyzes to ensure that baseline differences between men and women did not skew the final results.
The link between harm avoidance and cognitive struggle worked as the researchers expected. Participants who scored high on harm avoidance generally reported much greater psychological flexibility. Second, higher levels of inflexibility were mathematically predicted to result in more daily executive function complaints.
Contrasting patterns emerged for traits of self-directedness. Participants with high levels of autonomy had much lower levels of decreased psychological flexibility. Subsequently, their psychological adaptability was predicted to reduce daily cognitive decline and improve their subjective sense of emotional control.
Statistical models confirmed that psychological inflexibility acted as a partial mediator in both scenarios. A partial mediator acts like a primary channel through which one variable influences another, but it does not explain the entire relationship. Emotional rigidity bridges much of the distance between basic personality and subjective cognitive abilities.
This relationship fits neatly with theories about how the brain manages stress and attention. When a person expends a large amount of mental energy suppressing anxiety, fewer resources are available to the prefrontal cortex to maintain organization. When you stubbornly reject negative emotions, background programs act to consume your computer’s operating memory. Over time, the mental system becomes confused, leading to loss of precise memory and impulsive decisions measured in studies.
The researchers noted that their findings have great practical implications for young people. Core personality traits such as harm avoidance are notoriously difficult to change and remain relatively stable over the lifespan. Psychological flexibility, on the other hand, functions as a set of cognitive skills that can be trained.
Clinicians are already using targeted interventions such as acceptance and commitment therapy to improve patients’ psychological adjustment. These therapies teach people to tolerate emotional discomfort without letting it derail their behavior. By learning to accept stressful emotions rather than fight them, young people may free up important cognitive resources.
This shift in perspective may improve academic performance and overall resilience during the challenging developmental period of young adulthood. This study suggests that directly treating a person’s mental rigidity may indirectly reduce problems with concentration, planning, and emotional regulation.
There are several limitations to consider when interpreting these results. This study relied entirely on self-report questionnaires. People may overestimate or underestimate their cognitive deficits, depending on their mood. Adding behavioral tests could provide objective measures of attention and memory in future studies.
The cross-sectional design of studies also requires caution regarding causality. All data within the study were collected at a single time point. Because of this, researchers are unable to conclusively prove a direct chain of cause and effect. Engaging in cognitive challenges can still lead to psychological inflexibility and anxiety over time.
To confirm the direction of these relationships, scientists need to conduct long-term studies. Following young people over several years will reveal how changes in mental flexibility precede changes in executive function. Examining biological markers such as heart rate variability may also provide physical evidence of how emotional rigidity takes a toll on the body. Using these tools, researchers will be able to get a clearer picture of how the prefrontal cortex is impaired in real time as people struggle to avoid negative thoughts.
The study, “The Psychological Costs of Rigidity: Exploring the Mediation of Psychological Flexibility Between Personality and Prefrontal Cortex Function,” was authored by Daniela Batalas, Victor López-Guerra, Marco Jimenez, Vanessa Hidalgo, and Alicia Salvador.
