All articles tagged with #cognitive ability
Higher cognitive ability generally increases generalized trust, but childhood disadvantage weakens this link by about 50%, suggesting early adversity dampens how intelligence translates into social cooperation and contributing to intergenerational inequality.
A UK study of more than 24,000 adults finds that childhood disadvantage lowers later cognitive ability and significantly weakens the usual link between intelligence and trust; among those who experienced harsh early environments, higher cognitive ability has only about half the effect on trust, suggesting that early adversity dampens the social returns to intelligence and may reinforce intergenerational inequality.
A twin-based analysis from the TwinLife project finds that genetic factors largely explain the link between cognitive ability and future SES. Cognitive ability is about 75% heritable; genetic factors account for roughly 49–66% of educational attainment and 32–71% of occupational status. The association between early cognitive ability and later SES is predominantly driven by shared genetics (69–81% for education, up to 98% for occupation). Environmental factors overlap far less. The results imply biology heavily shapes life outcomes, though heritability is not destiny, and the study’s four-year window and simplified models warrant cautious interpretation. Policymakers should consider genetic influences when designing interventions to reduce inequality.
Research indicates that a person's ability to understand speech in noisy settings is more linked to cognitive ability than to hearing loss, with higher IQ correlating with better listening skills across diverse groups, including neurodivergent individuals.
A study found that higher cognitive ability is linked to better synchronization of brain regions, specifically through theta connectivity, which may serve as a marker for intelligence and cognitive control, with potential implications for future diagnostics and brain training tools.
New research indicates that higher cognitive ability is linked to more flexible and dynamic synchronization of theta brainwaves in the midfrontal brain region during demanding tasks, suggesting that intelligence depends more on adaptable neural coordination than constant activity.
A study from Johannes Gutenberg University Mainz reveals that the brain's ability to synchronize theta waves in the midfrontal region is linked to higher cognitive abilities, especially during demanding tasks, and that this neural coordination is flexible and adaptable, resembling an orchestra following a conductor.
Maintaining muscle health is crucial for healthy aging, as muscle mass and strength naturally decline starting in our 30s and 40s. This decline can lead to increased risks of falls, insulin resistance, cognitive decline, and loss of bone density.
A study analyzing data from the Project Talent Aging Study has found that individuals with better cognitive abilities in adolescence were less likely to develop dementia 60 years later. The study suggests that early cognitive ability influences education and occupation, which in turn may reduce the risk of dementia. The findings highlight the potential benefits of continued learning and engaging in mentally stimulating activities throughout adulthood in reducing cognitive impairment or dementia risk.
President Joe Biden's 2024 campaign released videos highlighting former President Donald Trump's verbal gaffes, raising concerns about his cognitive ability. Trump's remarks at a New Hampshire rally included garbled phrases and claims of acing a cognitive test, prompting a challenge to GOP rival Nikki Haley. Trump's past boasts about his memory and cognitive test performance have added to the ongoing debate about his mental fitness.
President Joe Biden's 2024 campaign released videos highlighting former President Donald Trump's verbal gaffes, raising concerns about his cognitive ability. Trump's remarks at a New Hampshire rally included garbled phrases and claims of acing a cognitive test, prompting a response from GOP rival Nikki Haley. Trump's past boasts about his memory and cognitive test performance have added to the ongoing debate about his mental fitness.
A study led by researchers at the University of Toronto has identified over 100 genes that have undergone evolutionary divergence only in humans, potentially contributing to our unique cognitive ability. These genes are expressed differently in human brains compared to chimpanzees, gorillas, macaques, and marmosets. The findings suggest that reduced selective pressure may have allowed these genes to develop higher-level cognitive capacity. The study is part of the Human Cell Atlas initiative, which aims to map all human cells to better understand health and disease. The research provides insights into the cellular differences between humans and other primates and offers a database for further genetic characterization across primates.
Archaeologists in Zambia have discovered the world's oldest wooden structure, estimated to be around 476,000 years old. The well-preserved structure, made from the logs of a large-fruited willow tree, predates the existence of Homo sapiens and suggests a higher cognitive ability among ancient ancestors. The find also challenges the notion of Stone Age people as purely nomadic, as the structure indicates a settled lifestyle. The discovery was made near Zambia's Kalambo Falls and provides insights into the intelligence, imagination, and skills of early humans.
A study examines the association between social media fatigue (SMF), cognitive ability, narcissism, and misinformation sharing during the COVID-19 pandemic in eight countries. The research finds that SMF is positively associated with the perceived accuracy of misinformation and the sharing of misinformation. Cognitive ability is negatively associated with the perceived accuracy of misinformation and misinformation sharing. Narcissism is positively associated with the perceived accuracy of misinformation and misinformation sharing. The study suggests that SMF may lead to increased engagement with misinformation due to higher information and cognitive overload. The findings highlight the importance of considering cognitive ability and narcissism in understanding the psychology of misinformation belief and sharing on social media.
A study conducted in Sweden suggests that intelligent people are getting their COVID-19 vaccines faster than those with lower cognitive abilities. The study found that 80% of the most intelligent individuals were vaccinated within 40 days of vaccine availability, while it took 180 days for those with the lowest cognitive ability to reach the same level. The researchers believe that the complexity of the vaccination decision may make it difficult for people with lower cognitive abilities to understand the benefits of vaccination.