Aging affects word retrieval due to processing speed decline Research suggests that word-finding difficulties in aging are mainly due to a general slowdown in cognitive processing, rather than deficits in cognitive inhibition or specific language processing. Older adults experience increased…
Age-related changes in brain network connectivity and cognitive decline A systematic review of resting-state functional brain networks across the adult lifespan shows that older adults exhibit reduced within-network and increased between-network functional connectivity, along with lower segregation, modularity, and efficiency.…
Genetic predictors of intelligence linked to liberal political beliefs A study investigated the relationship between intelligence and political beliefs using data from over 300 biological and adoptive families. It found that both measured IQ and polygenic scores, which are DNA-based…
Creative flow, a state where individuals become fully immersed and lose track of time during creative tasks, is linked to specific brain activity patterns. Neuroscientists have discovered that during this state, certain brain regions, such as the prefrontal cortex, exhibit…
Scientists have, for the first time, observed structural changes across the entire brain during menstruation, with fluctuations linked to hormone levels. These changes were identified in the hippocampus and other areas related to emotion and memory, suggesting that menstruation impacts…
Systematic review suggests that brain stimulation through light and sound can enhance cognitive and motor functions, potentially aiding in the treatment of disorders like Alzheimer’s and improving athletic performance. This noninvasive technique shows promise in inducing favorable mental states and…
A recent brain imaging study reveals that when people engage in cognitively demanding tasks, like following a coherent story, their brain activity becomes both more detailed (informative) and efficiently structured (compressible). This contrasts with less structured or simpler tasks, such…
Recent research explores the possibility that human consciousness could be linked to quantum processes in the brain’s microtubules. This theory suggests that consciousness may operate at a quantum level, potentially allowing connections to the universe. Experiments involving anesthesia on rats…
Researchers have successfully used AI to extract and reconstruct mental images directly from human brain activity. This groundbreaking achievement, the first of its kind, allows for the visualization of what a person is thinking based on their neural patterns. The…