Individuals with a high intelligence quotient (IQ) often have characteristics that distinguish them from the general population, including a propensity for deep and complex analysis, which can culminate in excessive worry. Rodrigues et al. (2024) explored this relationship through a neuroscientific and genomic approach, seeking to elucidate the causes and impacts of this predisposition.
Research has revealed that the amygdala, a brain structure key in processing emotions such as fear and anxiety, exhibits increased activity in individuals with high IQ. This hyperactivity can lead to a negative interpretation of environmental stimuli, triggering a cycle of rumination and worry. In addition, the prefrontal cortex, which is responsible for executive functions such as planning and decision-making, may have reduced activity during episodes of worry, making it difficult to stop negative thoughts.
Previous studies have also been reviewed to deepen understanding of the topic. Freeston, Dugas and Ladouceur (1996) investigated the nature of worry, revealing that individuals who worry excessively tend to use more verbal thoughts than visual images, suggesting more intense cognitive processing. Stober and Joormann (2001) analyzed the interactions between worry, procrastination and perfectionism, indicating that individuals with high IQ may be more prone to these characteristics, negatively impacting their well-being. Servaas et al. (2014) explored the neural correlates of preoccupation and its association with neuroticism, highlighting the activation of specific brain areas in individuals with high sensitivity to stimuli.
Research by Rodrigues et al. (2024) also addressed the role of genetics in predisposing to worry, indicating that polymorphisms in genes related to serotonin and brain-derived neurotrophic factor may influence levels of worry. In addition, a polymorphism in mitochondrial DNA was associated with IQ, suggesting that genetic variations may influence both intelligence and associated psychological traits, such as anxiety and worry.
In conclusion, excessive worry in individuals with high IQ is a complex phenomenon, influenced by neurobiological, genetic and environmental factors. Understanding these mechanisms is crucial for the development of effective interventions, such as cognitive-behavioral therapy, relaxation techniques and mindfulness, which can help in managing concern and improving the quality of life of these people.
Reference:
RODRIGUES, F. A. A; BIRTH, F. H. S; WAGNER, R. E. S.; LIMA, C. E. R.; MELO, A. M.; CROSS, L. N. Analysis of excessive worry in individuals with high IQ: a neuroscientific and genomic approach. Latin Science Multidisciplinary Scientific Journal, v. 8, 3, pp. 72-87, 2024.
