Brain Chemistry Test (BNA)

The Braverman Nature Assessment (BNA) was introduced in 2005 by Dr. Eric Braverman in his work on neurochemical profiles and behavioral balance. Rather than viewing human personality as an abstract collection of disconnected traits, the BNA models psychological temperament through the functional characteristics of four core neurochemical systems: dopamine, acetylcholine, GABA, and serotonin. Braverman proposed that every individual possesses a distinctive baseline configuration of these four natures, with one or two temperaments often emerging as dominant influences on personal drive, cognitive processing, social interaction, and daily emotional habits.

The Dopamine nature is characterized by high mental energy, structured decision-making, and strong intellectual focus. Individuals with a pronounced dopamine expression typically process complex thoughts rapidly, pursue ambitious goals with purposeful determination, and excel at objective problem-solving. In contrast, the Acetylcholine nature emphasizes creative intelligence, linguistic agility, and vivid memory retention. People aligning strongly with this temperament often thrive when absorbing novel concepts, listening attentively to the nuances of conversations, and exploring innovative or artistic pursuits with flexibility, emotional depth, and open-minded curiosity.

The GABA nature represents grounding stability, organizational consistency, and interpersonal calmness. Those who exhibit strong GABA tendencies tend to maintain an even attention span, navigate social dynamics with patient discernment, and bring dependable order and steady support to their communities and workplaces. Meanwhile, the Serotonin nature reflects sensory acuity, kinetic responsiveness, and practical adaptability. Individuals with prominent serotonin expression are often perceptive, hands-on learners who remain highly attuned to their immediate visual environment, showing strong manual concentration, real-time resourcefulness, and a capacity to recharge through physical engagement.

In everyday life, exploring your BNA profile helps clarify how your primary cognitive strengths, communication preferences, and personal work styles interact. You may find that your everyday approach leans toward the visionary momentum of dopamine, the intuitive learning of acetylcholine, the protective steadiness of GABA, or the agile realism of serotonin. Because the assessment conceptualizes these four natures as complementary dimensions rather than mutually exclusive categories, your results illustrate your relative expression across all four dimensions without forcing your personality into a single rigid label or an artificial aggregate score.

Psychological and neurochemical temperament research demonstrates that individual differences in cognitive processing, behavioral regulation, and sensory perception vary widely across human populations. Evaluating your personal patterns through structured self-report questionnaires provides valuable insight into how you naturally manage mental energy, everyday stress, and relationship dynamics. Please note that the population comparison markers presented on your profile chart are estimated benchmarks derived from published sample data, intended solely for general context rather than formally standardized percentiles or absolute normative metrics.

This assessment is provided strictly for educational and self-exploratory purposes. It does not constitute a medical diagnosis, biochemical test, physiological measurement, or clinical treatment recommendation of any kind. No online self-report inventory can substitute for professional consultation with a qualified physician, psychiatrist, or mental health specialist. This online test is based on the published Braverman Nature Assessment (BNA) and is not affiliated with, sponsored by, or endorsed by Dr. Eric Braverman or any associated academic or clinical institutions.

References

• Eric R. Braverman. The Edge Effect: Achieve Total Health and Longevity with the Balanced Brain Advantage. NY: Sterling Publications, 2005.