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For decades, mental health has been evaluated almost entirely through symptoms. How you feel. What you struggle with. What boxes you check on a questionnaire.
But there is a more fundamental question that is often left out:
What is actually happening in your brain?
The Brain Health Assessment was created by Daniel G. Amen, MD, founder of Amen Clinics and a pioneer in functional brain imaging, to help people better understand how their brain is functioning and how that function influences focus, mood, stress, and behavior.
Developed from decades of clinical brain imaging research, the Brain Health Assessment translates insights gained from SPECT scans into personalized results that help people make more informed choices about supporting their brain, even if they have not had a scan themselves.
This article explains why Dr. Amen believes looking at the brain itself matters, how brain imaging shaped the Brain Health Assessment, what SPECT brain scans reveal and why they are clinically important, how the Brain Health Assessment works, and how understanding Brain Types can guide practical, everyday decisions to improve brain health and quality of life.
This is not a personality quiz.
And it is not a diagnosis.
It is an educational, science-informed assessment designed to help people understand their brain more clearly so they can do what is best for it.
Why Looking at the Brain Changes Mental Health Care
Symptoms matter, but they don’t tell the whole story.
Two people may both feel anxious, unfocused, or depressed, yet the underlying brain function driving those experiences can be very different. Treating symptoms without understanding brain function often leads to trial-and-error approaches that frustrate patients and clinicians alike.
Dr. Amen’s work has shown that when people understand what is happening in their brain, several important things tend to occur. Blame decreases. Understanding increases. Motivation improves. Engagement and follow-through improve.
When people can see that their struggles have a biological component, they are often more willing to commit to lifestyle changes, treatment plans, and long-term brain-healthy habits.
Structural Imaging vs. Functional Brain Imaging
Most people are familiar with MRI or CT scans. These are structural scans. They show what the brain looks like.
Many mental health challenges, however, are not caused by structural damage. They are related to how the brain is functioning.
Functional brain imaging focuses on activity rather than anatomy. It helps answer questions such as which areas of the brain are overactive, underactive, or out of balance. This functional perspective adds important context when evaluating behavior, mood, focus, and resilience.
What Is a SPECT Brain Scan?
SPECT (Single Photon Emission Computed Tomography) is a nuclear medicine brain imaging study that evaluates regional cerebral blood flow, also known as perfusion.
Because active brain regions require more blood, perfusion patterns are commonly used as an indirect marker of brain activity. A SPECT scan produces a three-dimensional image that allows clinicians to observe how different regions of the brain are functioning relative to one another.
SPECT imaging can provide insight into patterns related to attention, impulse control, emotional regulation, mood, memory, cognitive performance, and the effects of trauma, toxins, or head injury.
At Amen Clinics, SPECT scans are never interpreted on their own. They are always reviewed alongside medical history, symptom patterns, cognitive testing, and comprehensive clinical evaluation.
Why Dr. Amen Uses SPECT Imaging
For more than 30 years, Dr. Amen has used SPECT imaging because it provides information that symptoms alone cannot.
Over time, reviewing nearly 300,000 brain SPECT scans revealed something important. Certain brain activity patterns appear consistently. These patterns help explain why people with similar symptoms may need different solutions. Seeing the brain reduces blame, increases understanding, and helps people stay more engaged with recommendations for care and lifestyle change.
Rather than asking only, “What diagnosis fits?,” SPECT imaging allows clinicians to ask a more useful question:
How is this person’s brain functioning, and what does it need to function better?
This imaging-informed approach remains a cornerstone of care at Amen Clinics and continues to guide how Dr. Amen approaches mental health and long-term brain wellness.
"Based on the world’s largest database of brain scans related to behavior, my colleagues and I developed the Brain Health Assessment to help people predict what their brain might look like if they were scanned. It’s the next best thing to getting a scan." - Daniel G. Amen, MD
Brain Patterns and the Origin of Brain Types
As functional patterns appeared again and again across large numbers of patients, it became clear that while every brain is unique, certain patterns of brain activity are predictable and repeatable.
Grouping these patterns into categories made it easier to explain complex brain science, help people recognize themselves in the patterns, and guide more personalized strategies for improvement.
These recurring functional patterns became known as Brain Types.
Brain Types are not diagnoses and they are not labels. They are frameworks for understanding how the brain tends to function and what it may need to work more optimally.
"This quiz helps you determine your Brain Type. Knowing your Brain Type can help you understand more about how you think, act, and interact with others. More importantly, it can help you learn how to optimize your individual brain to help you feel better and make you more successful in every area of your life – at work, at school, at home, and in relationships." - Daniel G. Amen, MD
Primary Patterns and Overlapping Brain Types
Most people are not just one Brain Type.
Many individuals show a primary Brain Type along with additional patterns. Some Brain Types reflect overlay patterns such as low mood, trauma load, significant stress, or burnout that interact with a person’s baseline wiring.
This layered view reflects what clinicians see in real life. Brain function is dynamic and influenced by life experience, stress, health, and environment.
The 16 Brain Types Explained
The Brain Health Assessment identifies 16 Brain Types based on functional patterns observed through clinical brain imaging.
Many people show one dominant Brain Type along with one or more overlapping patterns.
Here are brief descriptions of the 16 different Brain Types:
Brain Type 1: Balanced Brain
Even activity across brain regions. Tends to be adaptable, focused, and emotionally steady.
Brain Type 2: Spontaneous Brain
Lower activity in impulse-control regions. Often creative and energetic, but may struggle with organization or follow-through.
Brain Type 3: Persistent Brain
Higher activity in control-related regions. Often driven and detail-oriented, but may get stuck in rigid thinking.
Brain Type 4: Sensitive Brain
Increased activity in emotional centers. Often empathetic and intuitive, but more reactive to stress.
Brain Type 5: Cautious Brain
Heightened activity in mood- and stress-related regions. Often careful and prepared, but prone to worry.
Brain Type 6: Depressed Brain
This pattern is associated with low mood, reduced motivation, and decreased energy.
Brain Type 7: Anxious Brain
This pattern is marked by heightened fear and worry circuits that can amplify stress responses.
Brain Type 8: Focused Brain
This pattern is associated with deep concentration and strong task engagement, sometimes with difficulty shifting attention.
Brain Type 9: Unfocused Brain
This pattern is linked to distractibility, mental fatigue, and difficulty sustaining attention.
Brain Type 10: Impulsive Brain
This pattern involves reduced impulse control that can lead to acting quickly without pausing to consider ramifications.
Brain Type 11: Rigid Brain
This pattern is characterized by a strong preference for routine and predictability, with difficulty adapting to change.
Brain Type 12: Sad Brain
This pattern is associated with emotional heaviness and prolonged low mood, often influenced by stress or life events.
Brain Type 13: Nervous Brain
This pattern is marked by heightened vigilance and sensitivity to stimulation.
Brain Type 14: Burned-Out Brain
This pattern is associated with severe stress, exhaustion, and mental depletion.
Brain Type 15: Traumatized Brain
This pattern is influenced by past trauma or injury, often associated with hypervigilance or emotional reactivity.
Brain Type 16: Combination Brain
A blend of multiple Brain Type patterns. This is very common and reflects real-world brain complexity.
Each Brain Type has distinct strengths, vulnerabilities, and support needs. Understanding your Brain Type helps guide more informed and personalized decisions.
Why Dr. Amen Created the Brain Health Assessment
SPECT imaging remains a powerful clinical tool, particularly for individuals who need deeper evaluation or highly personalized care.
At the same time, Dr. Amen recognized that many people could benefit from understanding their brain patterns earlier, before challenges escalate.
The Brain Health Assessment was created to extend the insights gained from decades of brain imaging into an accessible, educational tool that helps people understand their brain, identify priorities, and make informed decisions about supporting long-term brain health.
The Brain Health Assessment complements clinical care and imaging and often serves as a meaningful first step.
How the Brain Health Assessment Works
The Brain Health Assessment is a structured online assessment that evaluates brain patterns and daily habits.
It identifies Brain Types, calculates a Brain Fit Score, and provides personalized education and guidance to support better brain health decisions.
Take the Brain Health Assessment
If you have ever wondered why certain approaches have not worked, or why focus, stress, or mood challenges keep returning, understanding your brain patterns can be a powerful first step.
Created by Dr. Amen and informed by decades of brain imaging research, the Brain Health Assessment offers a science-informed way to understand your brain and make better choices for your future.
"Over 2 million people have already taken the BHA, and versions of the quiz are used by thousands of medical and mental health professionals around the world." - Daniel G. Amen, MD
Take The Brain Health Assessment →
References:
Amen, D. G. (2023). You, Happier: The 7 Neuroscience Secrets of Feeling Good Based on Your Brain Type. Tyndale House Publishers.
Amen, D. G. (2018). Feel Better Fast and Make It Last. Tyndale House Publishers.
Amen, D. G. (2015). Change Your Brain, Change Your Life. Harmony Books.
Camargo, E. E. (2001). Brain SPECT in neurology and psychiatry. Journal of Nuclear Medicine, 42(4), 611–623.
American College of Radiology. (2022). Practice Parameter for Brain SPECT Imaging.
Society of Nuclear Medicine and Molecular Imaging (SNMMI). (2021). Procedure Standard for Brain Perfusion SPECT.
Amen Clinics. (2024). Brain SPECT imaging research database and Brain Health Assessment methodology. Amen Clinics, Inc. https://www.amenclinics.com
