Glenn T Goodwin, PhD

Glenn T Goodwin, PhD Neuropsychology The field of Neuropsychology is concerned with the study of how the structure and function of the brain relates to behavior.

Its foundational approach is based on neuroscience and an information processing view of the mind. The main domains within the field are Research, Experimental and Clinical. Clinical Neuropsychology is the application of scientific and statistical methods in evaluation of intellectual, cognitive and emotional behavior. Neuropsychologists examine brain functioning by application of quantitative (actuarial) and qualitative (clinical) assessment procedures in order to obtain a comprehensive study of neurocognitive and neurobehavioral status.

09/10/2025

REM Sleep Reactivation Locks Memories in Place

REM sleep isn’t just for dreaming—it’s when memories are secured.

A new study found that hippocampal adult-born neurons reactivate during REM sleep in mice, replaying waking experiences.

This reactivation, synchronized with theta brain waves, ensures memories are consolidated into long-term storage.

Blocking the process disrupted recall, explaining why losing these neurons—as in Alzheimer’s—can devastate memory function.

08/20/2025

Highly Sensitive People Face Greater Mental Health Risks

Sensitivity has long been overlooked in mental health research, but new evidence shows it plays a crucial role in vulnerability and recovery.

By analyzing data from over 30 studies, researchers concluded that highly sensitive individuals face a higher likelihood of depression and anxiety.

However, this same trait also makes them more responsive to therapy and positive life experiences.

Around one-third of the population falls into the “highly sensitive” category, meaning these findings could have broad clinical importance.

Tailoring treatment to sensitivity levels may improve therapeutic outcomes and reduce relapse rates.

The study ultimately emphasizes that sensitivity should be recognized as a key factor in shaping mental health across the lifespan.

08/20/2025

Learn about the research via the link in the comments!

08/02/2025

Neuroscientists think moments of "mind blanking" could be a way for the brain to protect itself.

07/17/2025

How Brain Blood Flows to Power Your Thoughts

Although the brain accounts for just 2% of body weight, it consumes 20% of its energy, requiring a fast, efficient blood allocation system.

New research reveals that endothelial cells create a “communication highway” via gap junctions to direct blood flow to the right places in real time.

This elegant mechanism helps maintain cognitive performance while conserving energy.

The same system seems to falter in neurodegenerative diseases, contributing to cognitive decline.

The study also highlights potential for improving the interpretation of brain imaging tools like fMRI.

By uncovering this key mechanism, scientists may develop therapies that target blood flow regulation in the brain.

06/27/2025

Sleep’s Secret Sequence May Sculpt Our Memories Like a Garden

Sleep has long been recognized as essential for memory, but a new study reveals how the sequence of sleep stages may be the key.

Researchers propose that non-REM sleep strengthens newly formed memories while REM sleep prunes overlapping or redundant ones, keeping memories organized.

This process was observed in mouse brains following a conditioning experiment and confirmed through computational modeling of neural circuits.

The model also showed that reversing the sleep sequence caused memory degradation.

Acetylcholine levels and interactions between excitatory and inhibitory neurons played central roles in this dynamic.

The results point to a deeply conserved biological mechanism that helps the brain retain and refine important information during sleep.

06/17/2025

Brain Cells Tune to Multiple Rhythms Like a Neural Radio

A new study shows that brain cells don’t just send one type of signal—they can dynamically shift between different firing modes to process more than one brain rhythm at once.

Using voltage imaging and computational models, researchers demonstrated that hippocampal neurons use bursts to resonate with slower theta waves and single spikes to track faster gamma waves.

This dual-response system, termed interleaved resonance, may help the brain coordinate complex functions like spatial memory and decision-making.

The neurons' responsiveness is shaped by internal ion channels and the timing of their activity, allowing them to adapt to changing cognitive demands.

Importantly, this discovery helps bridge the gap between neural rhythms and behavior.

It also opens new possibilities for understanding and potentially correcting disrupted brain signaling in diseases like Alzheimer’s and epilepsy.

06/03/2025

Scientists are still debating whether the human brain is capable of growing new cells past childhood.

06/03/2025

Infant Brain Wiring Predicts Emotional Growth Months Before It Shows

A new study has shown that the architecture of a baby’s brain at three months may shape their emotional world months later.

Researchers used advanced MRI techniques to map the brain’s white matter microstructure and link it to future emotional traits.

Infants with more complexity in the left cingulum bundle showed better emotion regulation, while those with higher dispersion in the forceps minor became more emotionally reactive.

These patterns held even when accounting for environment and parental factors.

The results underscore the importance of early detection and tailored support for emotional development.

The work represents a breakthrough in understanding the neurobiological roots of emotional well-being.

06/01/2025

One Molecule to Sleep and Wake: A New Brain Switch Discovered

A new study has discovered that a single chemical messenger in the brain, FLP-11, is responsible for both initiating and ending sleep in C. elegans.

The molecule acts by activating a receptor called DMSR-1, which is found in both wakefulness and sleep neurons.

When FLP-11 reaches wakefulness neurons, it suppresses them, allowing the worm to fall asleep.

Later, when FLP-11 binds to its own sleep neuron, it shuts it down to wake the worm up.

This dual mechanism offers an efficient way to regulate sleep duration.

The findings could shed light on how the human brain transitions between sleep and wake states.

https://neurosciencenews.com/sleep-molecule-neuroscience-29180/

05/20/2025

Reading Fiction Boosts Empathy and Fights Loneliness

As loneliness becomes a widespread issue, some tech leaders are promoting AI companions—but research shows reading may be a more effective solution.

Studies have found that reading fiction can significantly reduce loneliness, improve wellbeing, and strengthen brain regions involved in empathy and social cognition.

Shared reading and book clubs foster emotional connection, while even solo reading activates brain areas tied to understanding others.

Surveys show that readers report less stress, better mental health, and stronger social bonds, especially during times of isolation like the pandemic.

Neuroimaging studies also link frequent fiction reading to increased activity in the dorsomedial prefrontal cortex, a region important for social behavior.

https://neurosciencenews.com/reading-emapthy-loneliness-28972/

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