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PTSD

Featured Neuroscience Psychology Visual Neuroscience

·April 11, 2025·4 min read

Vivid Visual Memory May Raise PTSD Risk

A new study shows that having a vivid imagination—especially for visual details—may increase a person’s risk of developing posttraumatic stress disorder (PTSD) after trauma. In contrast, strong spatial memory skills, such as understanding where objects are located in space, may protect against PTSD symptoms, particularly in men.

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Featured Neuroscience Psychology

·March 31, 2025·7 min read

Fear of Emotions Fuels PTSD-Related Conflict in Romantic Relationships

New research reveals that fear of emotions may explain why individuals with PTSD symptoms often struggle to communicate with romantic partners. The study found that people with higher PTSD symptoms were more likely to fear strong emotions, which led to less constructive and more conflict-driven communication styles.

Featured Neuroscience Psychology

·March 27, 2025·8 min read

Killing in Combat Doesn’t Always Harm Soldiers’ Mental Health

A large study of over 14,000 Norwegian veterans reveals that taking a life in combat doesn't automatically damage a soldier’s mental health—context matters. Veterans from Afghanistan, where combat was expected and rules of engagement were clear, showed no long-term psychological harm from killing.

Featured Neuroscience Psychology

·March 18, 2025·5 min read

Bystander PTSD Alters Brain Differently Than Direct Trauma

New research reveals that witnessing trauma triggers unique brain changes, distinct from those caused by experiencing trauma firsthand. The study found that indirect trauma leads to different protein degradation patterns in key brain regions involved in fear memory.

Featured Neuroscience Psychology

·February 6, 2025·5 min read

How the Brain Overcomes Instinctive Fear and Adapts to New Threats

Researchers have identified brain mechanisms that help animals suppress instinctive fear responses when threats prove harmless over time. Using a visual threat model in mice, they found that specific areas of the visual cortex are necessary for learning to override fear, but not for storing the memory. Instead, the ventrolateral geniculate nucleus (vLGN) retains these learning-induced memories, regulating fear suppression.

Featured Neuroscience

·January 8, 2025·4 min read

Sleep Loss Weakens Brain’s Ability to Block Unwanted Memories

New research reveals that sleep deprivation hampers the brain’s ability to suppress intrusive memories, a process critical for mental health. The study found that well-rested individuals could engage the right dorsolateral prefrontal cortex to inhibit unwanted memories, while sleep-deprived participants struggled.

Featured Neuroscience Psychology

·January 2, 2025·4 min read

Poor Sleep Linked to Difficulty Controlling Unwanted Thoughts

Sleep deprivation impairs brain regions responsible for suppressing unwanted thoughts, contributing to mental health challenges. Functional neuroimaging revealed reduced activation in the prefrontal cortex and increased hippocampal activity in sleep-deprived individuals, suggesting memory control deficits.

Featured Neuroscience Psychology

·December 4, 2024·6 min read

Newly Discovered Brain Circuit Predicts Response to Stress

Researchers identified a brain circuit involving the amygdala and hippocampus that predicts resilience to stress in mice. Mice with disrupted neural communication in this circuit struggled to seek rewards, but activating the neurons restored resilience and improved decision-making.

Featured Neuroscience Psychology

·November 15, 2024·5 min read

How Stressful Events Alter Memories

Researchers have discovered how stress disrupts memory specificity, leading to generalized aversive memories—a hallmark of PTSD. Stress increases endocannabinoid release, enlarging memory engrams in the brain, which triggers fearful responses to unrelated, safe situations.

Featured Neuroscience Psychology

·November 12, 2024·6 min read

Hyperbaric Oxygen Therapy Shows Promise for Treating PTSD

Hyperbaric oxygen therapy (HBOT) has shown effectiveness in alleviating symptoms for individuals with PTSD unresponsive to traditional treatments. In a study of combat veterans, HBOT led to significant reductions in flashbacks, irritability, and hypervigilance, and was associated with improved brain connectivity on fMRI scans. The specialized protocol, developed over years, involves 60 sessions of breathing pure oxygen under high pressure.

Featured Neuroscience Psychology

·November 11, 2024·4 min read

Astrocytes Play Role in Deciding the Fate of Memories

Researchers have uncovered a surprising role for astrocytes—cells surrounding neurons—in deciding which memories are kept or forgotten. By manipulating astrocytes in mice using optogenetics, scientists found that acidifying these cells after a traumatic experience leads to forgetting the memory over time, while alkalinizing them preserves it long-term. This suggests astrocytes significantly influence emotional memory retention and could inform treatments for conditions like PTSD.

Featured Neuroscience Psychology

·November 4, 2024·7 min read

Mother’s Role in Buffering Child PTSD

A mother’s ability to regulate her response to trauma can significantly lessen PTSD symptoms in her children, particularly in high-stress regions. The research observed 131 mothers and young children in southern Israel, where security threats are prevalent, linking maternal self-regulation to reduced PTSD in children.