Articles tagged with Limbic System
A new brain pathway has been identified that enables humans to quickly detect and respond to 'scary' sounds, leading to increased self-reported fearfulness. This pathway is associated with better hearing ability in noisy environments.
A University of Houston researcher disputes a study claiming multilingualism promotes healthy brain aging, finding that wealth and healthcare systems may drive longevity instead. Hernandez argues that individual behavioral solutions, such as learning a language, are oversold and distract from structural factors that support healthy aging.
Dr. Paul Lucassen's research on adult neurogenesis reveals the link between early life experiences, lifestyle factors, and depression/dementia risk. His work has implications for therapeutic approaches to brain health and disease.
Professor John O'Brien's research focuses on understanding the impact of electrical synapses and gap junction plasticity on the retina and other neurological functions. The study aims to identify proteins that control electrical synapse strength, shedding light on their role in human disorders such as autism and seizures.
A study by Steve Chang explores how oxytocin influences brain activity to shape social behavior in rhesus monkeys. The researchers found that oxytocin increased activity in the basolateral amygdala and anterior cingulate cortex when monkeys were socially motivated, maintaining beneficial decisions and social task behavior.
Researchers explored neuroanatomy underlying social dominance in nonhuman primates, focusing on the uncinate fasciculus and its correlation with social dominance measures. The study found a significant correlation between this brain tract and social aggression, supporting human studies linking it to social dominance.
A recent Northwestern University study analyzed brain tissue from 174 donated brains, including some from former amateur football players. The researchers found no elevated levels of phosphorylated tau (p-tau) protein in the CA2 region of the hippocampus, which is often associated with CTE and normal aging.
Researchers discovered that stress activates neurons in the paraventricular nucleus of the hypothalamus, leading to impaired sleep and memory. Inhibiting these neurons reduced stress-related memory issues while slightly improving sleep.
Leila Nabulsi is expanding her research program to pinpoint brain pathways affected by bipolar disorder. She will leverage the ENIGMA consortium and advanced statistical methods to build a database of brain changes, potentially improving diagnosis and treatment.
Researchers used fMRI to observe brain activity in participants exposed to varying levels of pain stimuli, manipulating their expectations about the level of pain. The study found that higher-level networks integrated pain-related signals into the experience of pain by adding preserved expectation and stimulus information together.
Mayo Clinic scientists have established criteria for a memory-loss syndrome in older adults that specifically impacts the brain's limbic system. The syndrome, called Limbic-predominant Amnestic Neurodegenerative Syndrome (LANS), progresses more slowly and has a better prognosis than Alzheimer's disease.
Research in mice reveals that coordinated clock-gene and neuronal activity rhythms are necessary for daily hormone release, with the suprachiasmatic nucleus (SCN) and paraventricular nucleus (PVN) working together to generate circadian rhythms. Disruption of these clocks can lead to various pathologies.
Research shows that intensive maternal care during infancy promotes the effect of neuropeptide Y in the brain, leading to reduced anxiety and increased body weight in adulthood. The study found that maternal care stimulated the persistent formation of certain NPY receptors in the forebrain.