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neurobiology

·February 25, 2025·3 min read

SSRIs May Speed Up Cognitive Decline

A new study based on data from 18,740 dementia patients suggests that antidepressants may accelerate cognitive decline. Researchers found that patients taking antidepressants, particularly SSRIs like escitalopram, citalopram, and sertraline, experienced faster deterioration compared to those not on medication.

Featured Neuroscience

·February 25, 2025·6 min read

Brain’s Working Memory Limits Tied to Learning, Not Just Capacity

A new study reveals that working memory limitations stem from learning challenges rather than storage capacity. Using a computer model of the basal ganglia and thalamus, researchers showed that holding too much information at once confuses the brain, impairing its ability to learn and use stored data effectively.

Featured Neurology Neuroscience

·February 25, 2025·4 min read

FDA Approves Adaptive DBS for Parkinson’s Patients

The FDA has approved adaptive deep brain stimulation (aDBS), a breakthrough therapy that adjusts in real time to Parkinson’s disease symptoms. Unlike traditional DBS, which delivers constant stimulation, aDBS monitors brain activity and responds with precise electric pulses to prevent stiffness and involuntary movements.

Featured Neuroscience Psychology

·February 25, 2025·8 min read

Adverse Childhood Experiences Impact Brain Development and Mental Health

A decade-long study reveals how childhood adversity alters brain development, increasing risks for mental health disorders and substance use. Researchers found that teens who experienced early adversity showed delayed cognitive control, with unusual brain activity in regions linked to self-regulation.

This shows a man, immune cells and a bed.

Featured Neuroscience

·February 24, 2025·5 min read

Poor Sleep Alters Immune Cells, Increasing Risk for Inflammatory Diseases

A new study reveals that even a single night of sleep deprivation can alter immune cell profiles to resemble those seen in obesity, a condition linked to chronic inflammation. Researchers found that sleep-deprived individuals had increased levels of non-classical monocytes, immune cells associated with inflammatory responses, similar to patterns observed in obese participants.

Featured Neuroscience

·February 24, 2025·8 min read

AI Model Predicts Brain Aging Speed to Detect Cognitive Decline Early

A new AI model can measure how fast a person’s brain is aging using MRI scans, providing a powerful tool for detecting cognitive decline. Unlike previous methods, this model tracks brain aging over time, identifying regions most affected and correlating changes with cognitive function.

Featured Neuroscience

·February 23, 2025·5 min read

Low-Normal B12 Levels Linked to Slower Brain Processing

Even when within the normal range, lower levels of vitamin B12 may contribute to cognitive decline, according to a new study. Researchers found that older adults with lower biologically active B12 had slower cognitive processing and more white matter lesions, despite meeting current nutritional requirements.

Featured Genetics Neuroscience Psychology

·February 23, 2025·6 min read

Genetic Mutation Linked to Schizophrenia Alters Brain Function

Researchers identified a rare genetic mutation in two schizophrenia patients that increased schizophrenia-related behaviors in mice. The mutation led to higher levels of glycine decarboxylase (GLDC), an enzyme that degrades glycine, reducing NMDA receptor activation.

Featured Neuroscience Psychology

·February 23, 2025·3 min read

Repurposed Blood Pressure Drug May Treat ADHD

A new study suggests that amlodipine, a widely used blood pressure medication, could help manage ADHD symptoms. Researchers tested five potential drugs in rats bred for ADHD-like behaviors, and only amlodipine significantly reduced hyperactivity.

Featured Neuroscience Psychology

·February 22, 2025·5 min read

Optimism and Pessimism Shape Resilience and Risk

Researchers examined how optimism and pessimism influenced well-being and behavior during the COVID-19 pandemic. Analyzing data from a large-scale study of older adults, they found that optimism was linked to lower stress and greater resilience, while lower pessimism was associated with safer health behaviors.

Featured Neuroscience Visual Neuroscience

·February 21, 2025·4 min read

Every Breath You Take Alters Your Visual Perception

Researchers have discovered that breathing affects pupil size, with the pupil being smallest during inhalation and largest during exhalation. This newly identified mechanism is independent of external stimuli and could influence vision by alternating between detail enhancement and object detection.

Featured Neuroscience

·February 20, 2025·4 min read

How the Brain Ignores Distractions to Stay Focused

When focusing in noisy environments, the brain adjusts not by concentrating harder but by ignoring distractions that were previously disruptive. Researchers developed a neural network model showing that people fine-tune their attention based on past experiences with distractions.

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