Brain Injuries and Mental Illness in Arlington, Texas

Written by Geoffrey Dashner. Read more about the author.

Most people understand that a brain injury can leave someone with headaches, memory gaps, or trouble speaking. What fewer people realize — and what I see regularly in my practice — is that a traumatic brain injury can also permanently alter a person’s mental health. Depression, anxiety disorders, psychosis, and post-traumatic stress disorder are all documented consequences of TBI, and they often don’t surface until weeks or months after the original injury.

That gap between injury and psychiatric symptoms is one of the most damaging traps a brain injury victim can fall into. By the time the mental health effects show up clearly, insurance adjusters have already pushed for a settlement or tried to reframe the claim as a pre-existing condition. If you’ve suffered a head injury in an accident and you’re now noticing changes in your mood, behavior, or thinking, you need to understand what may be happening — and you need to act quickly under Texas law.

At Dashner Law Firm | Arlington Injury & Accident Attorney, we handle brain injury cases throughout Tarrant County and across Texas. If you were hurt in an accident in Arlington or anywhere nearby, here’s what you need to know in 2026.

Can a Brain Injury Cause Mental Illness in Arlington?

Yes. A traumatic brain injury can directly cause mental illness, and this is not a rare or fringe outcome. Research from the NIH shows that people who sustain a TBI have significantly elevated rates of major depressive disorder, anxiety disorders, PTSD, bipolar disorder, and even psychotic disorders compared to the general population. The risk doesn’t disappear after the acute recovery phase — in many cases, psychiatric conditions emerge months or years after the physical symptoms have stabilized.

The brain mechanisms involved are well documented. When the frontal lobe or limbic system sustains damage — whether from a direct blow, a rotational force, or oxygen deprivation — it disrupts the neural circuits that regulate mood, impulse control, and emotional processing. This isn’t just psychological distress caused by living with an injury; the brain’s actual structure and chemistry change. The Mayo Clinic notes that TBI survivors face a 3.5-fold increased risk of depression and a substantially higher risk of anxiety disorders when compared to individuals with no prior brain injury.

In Arlington, I’ve worked with clients who walked away from car accidents on I-20 or Loop 820, received basic discharge instructions from an emergency room, and then spent the next six months struggling with severe depression, rage episodes, or debilitating anxiety that nobody connected to their injury. When the medical picture wasn’t complete, the legal picture suffered too. Insurance companies don’t volunteer the connection between TBI and psychiatric outcomes — you have to build that case with the right medical experts and legal representation.

The psychiatric consequences of TBI are compensable under Texas personal injury law. That means if someone else’s negligence caused your brain injury, and that injury led to depression, anxiety, PTSD, or another mental health condition, those damages belong in your claim. Not as an add-on, but as a core part of what was taken from you.

What Causes Traumatic Brain Injury in Texas Accidents?

The leading cause I see in my caseload is motor vehicle collisions. Texas roads — particularly high-traffic corridors around Arlington like I-30, SH-360, and Highway 287 — produce a steady volume of high-impact crashes. When a vehicle stops suddenly or gets struck, the brain can slam against the interior of the skull even without direct head contact. Texas Car Accident Attorneys handle many of these cases, and brain injury is among the most serious outcomes.

Truck accidents produce some of the worst TBIs I handle. A fully loaded commercial truck weighing 80,000 pounds generates force that passenger vehicle occupants cannot survive without catastrophic injury. Texas Truck Accident Attorneys know that these collisions frequently result in severe, life-altering brain damage rather than mild concussions.

Falls are the second major cause nationwide, and Texas construction sites contribute significantly to that number. Workers fall from scaffolding, ladders, and elevated platforms without adequate fall protection. Texas Construction Accident Attorneys regularly pursue TBI claims in these contexts. Beyond worksites, premises liability cases — a wet floor in a grocery store, a broken stair railing — produce falls that cause serious head injuries. Texas Premises Liability Attorneys handle the property owner accountability side of these claims.

Pedestrian accidents are another significant source. Arlington has stretches of road where pedestrian infrastructure is poor and vehicle speeds are high. When a pedestrian gets hit, there’s no protective frame around them. Texas Pedestrian Accident Attorneys see TBI as a common result. Sports injuries, assaults, and motorcycle crashes round out the main causes. Texas Motorcycle Accident Attorneys deal with TBI outcomes frequently even when the rider was wearing a helmet, because helmets reduce but don’t eliminate injury risk at highway speeds.

According to the CDC, approximately 1.5 million Americans sustain a TBI each year, and motor vehicle crashes remain among the top three causes across all age groups.

What Is a Traumatic Brain Injury?

A traumatic brain injury occurs when an external force disrupts normal brain function. That force can be a direct blow to the skull, a penetrating wound, or a rapid acceleration-deceleration that shakes the brain inside the skull without contact. The disruption can be focal — concentrated in one area — or diffuse, meaning it affects the brain more broadly through axonal shearing.

TBIs are classified as mild, moderate, or severe based on loss of consciousness, post-traumatic amnesia, and Glasgow Coma Scale scores measured at the time of injury. Mild TBI includes most concussions. Moderate and severe TBIs involve longer periods of unconsciousness, more pronounced memory loss, and visible abnormalities on imaging.

One important clinical reality: the “mild” classification refers to the acute injury presentation, not the long-term outcome. A person classified as mild TBI at the ER can go on to develop chronic symptoms, psychiatric disorders, and permanent cognitive deficits. This is something insurance companies exploit — they point to an ER report that says “mild” and argue the injury wasn’t serious. A skilled traumatic brain injury attorney knows how to present neuropsychological testing, imaging, and expert testimony to show the full picture.

Johns Hopkins Medicine describes the structural and functional changes that can follow even mild TBI, including white matter damage that isn’t visible on standard CT scans but appears on diffusion tensor imaging. This kind of advanced medical evidence is exactly what separates well-prepared brain injury lawsuits from ones that fall apart.

Is a Concussion a Traumatic Brain Injury?

Yes. A concussion is a traumatic brain injury — specifically, it falls at the mild end of the TBI spectrum. The term “concussion” often leads people to underestimate the severity of their injury, and that underestimation costs them medically and legally.

During a concussion, the brain undergoes both mechanical disruption and a neurochemical cascade. Potassium floods out of neurons, calcium floods in, and the brain temporarily loses its ability to maintain normal function. Most people recover within days to a few weeks. But a meaningful percentage — estimates range from 15 to 30 percent — develop post-concussion syndrome, with symptoms persisting for months or becoming permanent.

Post-concussion syndrome can include persistent headaches, light and noise sensitivity, cognitive slowing, memory impairment, sleep disruption, and — critically — depression and anxiety. WebMD notes that the psychiatric components of post-concussion syndrome are often more disabling than the physical symptoms over the long term.

In my practice, I’ve seen clients who were told at the hospital that they had “just a concussion” and were cleared to go home. They came to me three months later unable to work, struggling with depression, and worried that nothing was really wrong with them because the injury had been labeled minor. The injury wasn’t minor. It just wasn’t taken seriously early enough. That’s a problem we address directly by building the medical record carefully from day one.

What Are the Long-Term Effects of Traumatic Brain Injury?

The long-term effects of TBI vary based on injury severity, the area of the brain affected, the person’s age at injury, and how quickly treatment was initiated. But several patterns appear consistently.

Cognitive deficits are common. Memory problems — both forming new memories and retrieving existing ones — affect a large percentage of moderate-to-severe TBI survivors. Attention and concentration difficulties make sustained work tasks difficult. Processing speed slows. These deficits can reduce or eliminate a person’s earning capacity, which is a direct economic damage in a Texas brain injury lawsuit.

Personality and behavioral changes are among the most disruptive long-term effects for families. Frontal lobe damage is particularly associated with impulsivity, aggression, disinhibition, and dramatic shifts in personality. Family members often describe the person after injury as fundamentally different from who they were before. These changes are not character flaws — they are neurological damage.

Psychiatric disorders, as discussed above, are well-documented long-term consequences. Major depression affects an estimated 25 to 50 percent of TBI survivors at some point after injury. Anxiety disorders, PTSD, and — in cases of more severe injury — psychotic symptoms are also documented outcomes in the medical literature.

Physical effects include seizure disorders, chronic pain, hormonal dysregulation from pituitary damage, and sleep disorders. A 2023 study published in a peer-reviewed neurology journal found that TBI survivors have significantly elevated risk of developing early-onset dementia, including Alzheimer’s disease. This emerging research is relevant to future damages calculations in Texas brain injury lawsuits.

For a thorough overview of our approach to these complex claims, see our Texas Brain Injury Attorneys page. You can also review what our Arlington clients say about outcomes we’ve helped them achieve.

What Is the Most Common Brain Injury in Accident Cases?

Concussion remains the most frequently diagnosed brain injury in accident cases — by a significant margin. Diffuse axonal injury, contusions, and coup-contrecoup injuries follow in frequency, and they tend to appear in higher-speed or higher-force events.

In Texas accident cases specifically, rear-end collisions on fast-moving highways produce a high volume of concussions from the whiplash mechanism. Even without direct head contact, the brain can sustain injury from rapid deceleration. Contusions — bruising of the brain tissue — appear more often in falls where the head strikes a hard surface. Coup-contrecoup injuries happen when the brain bounces back and forth inside the skull, producing damage at both the impact site and the opposite side.

Understanding what type of injury occurred matters for both medical treatment and legal strategy. Different injury types produce different symptom profiles, respond to different treatments, and show up differently on imaging. A brain injury lawyer who understands the neuroscience can work more effectively with medical experts to connect the injury type to the symptoms and long-term consequences the client is experiencing.

How Texas Law Handles Brain Injury Claims in 2026?

Texas follows a modified comparative fault rule under the Texas Civil Practice and Remedies Code. If you’re found to be more than 50 percent at fault for the accident, you’re barred from recovering damages. Below that threshold, your damages are reduced proportionally. This is relevant in brain injury cases because defendants and insurers frequently try to shift fault onto the injured person.

The statute of limitations in Texas for personal injury claims is generally two years from the date of injury. In 2026, that standard hasn’t changed. Two years sounds like a long time, but in brain injury cases, the complexity of the medical record, the need for expert witnesses, and the time required to properly document long-term psychiatric and cognitive effects mean that waiting is genuinely harmful to your case. Evidence gets lost. Witnesses become harder to locate. Gaps in medical treatment become ammunition for the defense.

Texas also has no cap on economic damages in personal injury cases. Non-economic damages — pain, suffering, mental anguish, loss of consortium — are not capped in standard personal injury claims (caps apply specifically in medical malpractice). That matters in catastrophic brain injury cases where non-economic losses are enormous. A Texas catastrophic brain injury attorney can help ensure those damages are fully documented and vigorously pursued.

If you want to understand how FindLaw or Justia outline Texas personal injury framework, those are useful starting points — but the specifics of a TBI case require counsel who has handled these claims in Tarrant County courtrooms and knows the medical experts who can testify effectively.

You can also read more about our practice and experience to understand how we approach cases from initial investigation through trial.

What to Do After a Brain Injury Accident in Arlington?

Get emergency medical care immediately, even if you feel okay. The brain can swell hours after injury, and symptoms of a serious bleed can be subtle initially. Don’t let anyone — not the other driver, not a well-meaning bystander — convince you that you’re fine without a physician’s evaluation.

Follow up with a neurologist or neuropsychologist, not just a general practitioner. Standard ER workups often miss mild TBI because CT scans don’t show the axonal damage or neurochemical disruption that causes the most persistent symptoms. Ask about advanced imaging like MRI with diffusion tensor sequences.

Document every symptom, including changes in mood, sleep, and behavior. I tell my clients to keep a daily journal. When psychiatric symptoms emerge weeks after the accident, that contemporaneous record becomes powerful evidence that those symptoms are connected to the injury rather than pre-existing.

Contact a brain injury lawyer before speaking with the at-fault party’s insurance company. Anything you say to an adjuster can be used to reduce or deny your claim. Brain injury cases require early preservation of evidence — accident scene documentation, vehicle data, surveillance footage — that disappears quickly without legal intervention.

Talk to a Brain Injury Attorney in Arlington

If you or a family member suffered a head injury in an accident, don’t assume the full consequences are already apparent. The mental health effects of TBI can take months to emerge, and once they do, connecting them to the accident requires careful medical documentation and experienced legal work.

At Dashner Law Firm | Arlington Injury & Accident Attorney, we handle brain injury claims throughout Texas, from initial investigation through settlement negotiations and trial. We work with neurologists, neuropsychologists, and life care planners to build claims that reflect what TBI actually costs — not just today, but years from now.

Call us at (817) 203-8018 for a free consultation. Visit our Arlington office at 4275 Little Rd # 205, Arlington, TX 76016, or contact us online to schedule a time to talk. There’s no fee unless we win your case.

Written by Geoffrey Dashner. Read more about the author.