Summary: Researchers propose an evolutionary resolution to why human overconfidence persists despite causing costly decision-making errors. The study argues that overconfidence functions analogously to a peacock’s tail: a costly evolutionary…
Category: Neuroscience
Peripheral Blood Cells Replenish Aging Human Microglia
Summary: Researchers revealed that aging leads to a massive, previously unrecognized migration of peripheral blood stem cell-derived immune cells into the human brain. The team dismantled the long-held dogma that…
Depression Triggers Volume Loss in Memory Brain Areas
Summary: Researchers identified a specific structural brain change associated with depression in older adults. Examining high-resolution MRI scans from 2,009 cognitively unimpaired adults aged 50 to 90, the team discovered…
ChatGPT Predicts Human Personality Test Results
Summary: A new study demonstrated a novel method using ChatGPT (GPT-4) to construct, validate, and predict population-level responses for personality assessment questionnaires derived from any source text. The team tested…
Nonordinary Experiences Lead to Long-Term Personal Growth
Summary: Researchers investigated how individuals perceive and process nonordinary experiences (NOEs), such as out-of-body experiences, extrasensory perception, and sensing an unseen presence. Utilizing a newly validated 47-item Inventory of Nonordinary…
THC Significantly Reduces Trauma Nightmares in PTSD
Summary: Researchers investigated the efficacy of dronabinol, a plant-derived tetrahydrocannabinol (THC) formulation, in treating trauma-related nightmares in patients with post-traumatic stress disorder (PTSD). The trial demonstrated a statistically significant reduction…
Inflammatory Bowel Disease Increases Psychiatric Risk
Summary: Researchers analyzed data from over 40,000 Swedish patients diagnosed with inflammatory bowel disease (IBD) between 2007 and 2023. Comparing IBD patients against nearly 180,000 general population controls and 26,000…
Phase 1 Trial Validates Anti-PD-L1 Antibody for Alzheimer’s
Summary: Researchers announced the successful completion of a Phase 1b clinical trial for a novel immunotherapy for Alzheimer’s disease. The trial evaluated IBC-Ab002, a humanized anti-PD-L1 monoclonal antibody specifically engineered…
Brain PET Scans Link Late-Onset Psychosis to Tau and Amyloid
Summary: A new study demonstrates that first-episode hallucinations and delusions appearing after age 40 are frequently driven by underlying neurodegenerative pathology. Using molecular positron emission tomography (PET) imaging, the team…
How Posture Boosts Risk-Taking and Positive Mood
Summary: A new study demonstrates that a person’s physical posture subtly influences their emotional state and economic decision-making without their conscious awareness. Key Facts Implicit Posture Control: Unlike previous “power…
