خلاصه مقالات نوروسايكلوژى شماره سه

Research in Technology, Mind, and Behavior suggests that internet use can increase measures of well-being, such as life satisfaction and sense of purpose. Researchers examined survey data from more than 2.4 million people from 168 countries, examining links between internet access and eight indicators of well-being between 2006 and 2021 from people 15 years old and older. They found that, on average, people who had access to the internet via phone, computer, or other devices scored 8% higher on measures of life satisfaction, positive experiences, contentment with their social life, and physical well-being compared with those lacking web access—even when controlling for confounding factors such as income and education. However, women ages 15 to 24 who reported having used the internet in the past week were, on average, less happy with the place where they live compared with people who didn’t use the web.

Microdosing lysergic acid diethylamide (LSD) may extend sleep by almost half an hour per night, suggests a study in Translational Psychiatry. Researchers randomized 80 healthy male participants in the United States into LSD or placebo groups. Participants wore smartwatches to track sleep and self-administered 10 micrograms of LSD or a placebo every 3 days for 6 weeks. The researchers found that participants in the LSD group got an additional 8.13 minutes of rapid eye movement (REM) sleep and an additional 24.3 minutes of total sleep on nights following (but not on the nights of) microdosing, but they found no significant differences in deep sleep. No significant changes were observed in physical activity patterns between the LSD and placebo groups. Additionally, no noticeable interaction effects were observed in calorie intake, distance walked, total steps taken, or activity state.

Physical fitness among children and adolescents may protect against developing depression, anxiety, and ADHD, according to a study in JAMA Pediatrics. Researchers examined data from Taiwanese national student fitness tests for 10- and 11-year-olds between 2009 and 2019. Researchers divided participants into two cohorts—one targeting anxiety and depression (1.99 million participants) and the other ADHD (1.92 million participants)—and monitored their subsequent mental health symptoms for at least 3 years. The researchers found improved cardiorespiratory fitness, marked by a 30-second improvement in 800-m run times, was associated with less anxiety, depression, and ADHD in female participants and less anxiety and ADHD in male participants.