Search results for memory

“Participants with higher vitamin D concentrations had better word recall, working memory, episodic memory, and perceptual speed – the ability to compare similarities and differences quickly and accurately among sets of letters, numbers, objects, pictures, or patterns.”

“Researchers fed older mice urolithin A (200 milligrams per kilogram of body weight) daily for five months. They subjected the animals to various learning and memory tests, assessed their sense of smell, and examined their brains.”

“One of the major changes observed was a decrease in brain glutathione levels (the major antioxidant in the brain which helps prevent damage to neurons).”

“Examination of the animals' brains revealed that the mice that ate the high-fat diet (as well as those that received the fat transplants) had weaker synapses between the neurons involved in learning and memory.”

“For participants in the well-rested group, higher heart rate variability was predictive of better intrusive thought suppression. Normally, the prefrontal cortex controls areas of the brain important emotional regulation, the amygdala, and memory, the hippocampus.”

“The brain-induced immune event exhibited two features that indicated it was a form of recollection. First, it was exclusively located in the colon, suggesting a relatively precise “memory” of bowel inflammation rather than a generic signal for immune defense.”

“While on the placebo treatment, participants’ willingness to expend cognitive effort increased as their baseline dopamine synthesis capacity increased. Notably, while performance on the working memory task decreased with difficulty, there was no relationship between task performance and dopamine levels.”

“The number of antibodies specific for the SARS-CoV-2 spike antigen decreased significantly from 1.3 to 6.2 months after infection, and the ability of these antibodies to neutralize the virus decreased fivefold. However, memory B cell concentrations were slightly increased, leading to the authors to conclude that immunity was intact 6.2 months after infection.”