Opinion
School Climate & Safety Opinion

This Is What Happens to a Student’s Brain When Exposed to Gun Violence

Traumatized and hypervigilant brains cannot learn effectively
By Amanda M. Dettmer & Tammy L. Hughes — June 27, 2022 5 min read
Conceptual illustration of a lone figure standing in a sea of bullets
  • Save to favorites
  • Print

As gun violence takes its place as the leading cause of death in children and teens, Americans must consider whether schools are among those places where children are persistently at-risk. It is true that children and teens live in homes and neighborhoods where there are increasing rates of violence, death, and suicide by guns, and that mass shootings account for the smallest number of those gun deaths.

Yet, it is also true that in the wake of the events at Robb Elementary School in Uvalde, Texas, and after more than 250 mass shootings in the country this year, more than half of educators report fear of a large-scale school shooting as a key safety concern. Parents, educators, and the public are faced with the question: How can schools be safe for learning?

The answer: by prioritizing and optimizing psychological safety.

See Also

The archbishop of San Antonio, Gustavo Garcia-Siller, comforts families outside the Civic Center following a deadly school shooting at Robb Elementary School in Uvalde, Texas, Tuesday, May 24, 2022.
The archbishop of San Antonio, Gustavo Garcia-Siller, comforts families following a deadly school shooting at Robb Elementary School in Uvalde, Texas, on Tuesday, May 24, 2022.
Dario Lopez-Mills/AP
School Climate & Safety Opinion A Devastated Teacher's Plea for Gun Reform
Mary M. McConnaha, May 25, 2022
4 min read

Traumatized brains cannot learn effectively. Hypervigilant brains cannot learn effectively. The science has been clear on this for years, and the COVID-19 pandemic brought this knowledge into sharp relief: When young, developing brains experience a toxic stressor—meaning, a strong, uncontrollable stressor absent adequate psychological supports—they are profoundly affected.

The same is true whether children survive a mass shooting at their school, witness gun violence in their homes or communities, or lose a primary attachment figure such as a teacher or relative to gun violence. The experience of gun violence (trauma), or the heightened worry over their own safety even in the absence of experiencing gun violence (hypervigilance) rewires the brain at its most sensitive periods of development.

The experience of, or excessive worry about, toxic stressors like gun violence affects three key brain functions which students depend on for learning. First, the brain’s emotional response function goes into overdrive: It shows heightened reactions to emotional stimuli and has greater difficulty disengaging from them, ultimately resulting in greater reactivity to threat and therefore greater perceived stress. Because the brain’s emotional processing areas are also critical for perspective-taking, social interactions, and for attention, learning is impaired.

Second, the brain’s reward processing areas are diminished. The brain responds less robustly to rewards, which in turn increases reward-seeking behavior. This impairment affects learning by directly affecting students’ motivation and attention, decisionmaking, and ability to respond to different types of reinforcements in the classroom, which are crucial for learning new skills.

Finally, the brain’s “air traffic control tower” is compromised. The prefrontal cortex coordinates higher cognitive functions including working memory, attention shifting, and executive function skills. It also mediates empathy and self-regulation. Following traumatic events like gun violence, the prefrontal cortex coordinates connections in the brain are weakened while responses to threat are strengthened, impairing top-down control and shifting the brain from a more reflective to a more reflexive state.

Children are not primed for optimal learning in a reflexive state. Brains in pain do not learn. The traumatized and hypervigilant brain affords most of its energy toward survival and the least amount to learning. Under psychologically and physically safe conditions, however, the brain can focus most of its energy on learning.

Children, of course, are not the only ones affected by the toxic stressor of gun violence. Teachers across grade levels and across the country are traumatized by school shootings, and they need time and space to process events like these—not to treat the day after “like any typical school day.” How can teachers be expected to provide the best learning environment for the students under these conditions?

Teachers require their own time to share their reactions with other adults. Support from friends, family and community is irreplaceable. “Solider on” approaches can disrupt expressions of care by minimizing teachers’ experience of stress. When teachers need time to step away and refresh, explicit support from colleagues and administrators, and in the form of policy protecting these needs, is required. Ignoring personal needs is a recipe for burnout, and, in the longer term, for teachers leaving the profession.

There are straightforward preventive measures we can take to maximize students;’ learning potential. The science also informs us here. When children feel safe and secure—physically, yes, but especially psychologically—they are primed for optimal learning.

This type of safety comes in many forms. Consistent and predictable routines and stable adult presence, such as those provided in homes, schools, and communities, are paramount to optimizing learning. When teachers have the structures in place to model how they manage their own reactions, students benefit. Teachers explaining how they notice the need for help and how to reach out for support are valuable lessons. Hearing that “we are in this together” can make students’ fears more manageable, which in turn enables and promotes their learning.

Increased public safety begins with practical solutions that help our young people to thrive in their school and communities. We can accomplish this by focusing on stacking positive factors, such as implementing programming that addresses traumas and establishes school connectedness, and by addressing bullying and other times kids are feeling excluded.

However, these types of psychological safety nets are compromised when easy access to military-style weapons and high-capacity magazines result in the murder of children’s peers, teachers, caregivers, and neighbors. Any positive in-school interventions must be simultaneously accompanied by reducing potential harms, such as limiting what kinds of guns and ammunition are available for purchase, and by whom.

Our courts and lawmakers must reduce potential harm to students by making it harder, not easier, to acquire and carry firearms. They must also require, not just encourage, red flag laws across the country.

By stacking positive factors and offloading negative factors, the scales tip toward the positive, and children and educators are situated to optimize learning in the classroom. The end result will be a lasting effect on a student’s capacity to develop into healthy adults and responsible citizens.

A version of this article appeared in the July 13, 2022 edition of Education Week as The Cognitive Toll of Gun Violence

Events

This content is provided by our sponsor. It is not written by and does not necessarily reflect the views of Education Week's editorial staff.
Sponsor
Artificial Intelligence Webinar
Managing AI in Schools: Practical Strategies for Districts
How should districts govern AI in schools? Learn practical strategies for policies, safety, transparency, and responsible adoption.
Content provided by Lightspeed Systems
This content is provided by our sponsor. It is not written by and does not necessarily reflect the views of Education Week's editorial staff.
Sponsor
Reading & Literacy Webinar
Two Jobs, One Classroom: Strengthening Decoding While Teaching Grade-Level Text
Discover practical, research-informed practices that drive real reading growth without sacrificing grade-level learning.
Content provided by EPS Learning
Jobs Virtual Career Fair for Teachers and K-12 Staff
Find teaching jobs and K-12 education jubs at the EdWeek Top School Jobs virtual career fair.

EdWeek Top School Jobs

Teacher Jobs
Search over ten thousand teaching jobs nationwide — elementary, middle, high school and more.
View Jobs
Principal Jobs
Find hundreds of jobs for principals, assistant principals, and other school leadership roles.
View Jobs
Administrator Jobs
Over a thousand district-level jobs: superintendents, directors, more.
View Jobs
Support Staff Jobs
Search thousands of jobs, from paraprofessionals to counselors and more.
View Jobs

Read Next

School Climate & Safety Q&A This Principal Puts Relationships Ahead of Content. Here’s How
A school leader discusses how he and his staff create a safe and supportive learning environment.
5 min read
Damon Lewis.
"We're going to get to the standards ... but we have to make sure that our kids feel safe enough to come into our building," said Damon Lewis, the principal for Ponus Ridge STEAM Academy in Norwalk, Conn., and the National Middle Level Principal of the Year in 2025.
Allyssa Hynes/NASSP/NASSP via reporter
School Climate & Safety Father Who Gave Gun to School Shooting Suspect Is Guilty of 2nd-Degree Murder
Colin Gray is one of several parents prosecuted after their children were accused in fatal shootings.
4 min read
Colin Gray, the father of Apalachee High School shooting suspect Colt Gray, reacts after a jury convicted him of second-degree murder and involuntary manslaughter at Barrow County Courthouse in Winder, Ga., Tuesday, March 3, 2026.
Colin Gray, the father of Apalachee High School shooting suspect Colt Gray, reacts after a jury convicted him of second-degree murder and involuntary manslaughter at Barrow County Courthouse in Winder, Ga., on March 3, 2026. Gray's conviction marks the latest instance of a parent being held criminally responsible for a school shooting.
Abbey Cutrer/Atlanta Journal-Constitution via AP, Pool
School Climate & Safety This Key Factor Helps Students Feel Safe at School
Students who believe educators take their safety concerns seriously are more likely to feel safe.
3 min read
A hallway at a school in Morrisville, Pa., on Nov. 13, 2025. Data from a recent survey shows the link between safety and relationships come as schools carve out portions of their increasingly limited budgets on school security measures, safety training, and mental health programs to keep students safe.
A recent survey shows the link between safety and relationships as schools struggle to carve out portions of their increasingly limited budgets for school security measures, safety training, and mental health programs. A hallway at a school in Morrisville, Pa., is shown on Nov. 13, 2025.
Rachel Wisniewski for Education Week
School Climate & Safety 4 Ways Schools Can Build a Stronger, Safer Climate
A principal, a student, and a researcher discuss what makes a positive school climate.
4 min read
A 5th grade math class takes place at Lafargue Elementary School in Effie, Louisiana, on Friday, August 22. The state has implemented new professional development requirements for math teachers in grades 4-8 to help improve student achievement and address learning gaps.
Research shows that a positive school climate serves as a protective factor for young people, improving students’ education outcomes and well-being during their academic careers and beyond. A student raises her hand during a 5th grade class in Effie, La., on Aug. 22, 2025.
Kathleen Flynn for Education Week