10/14/2025
# # **EEG-Based Electromagnetic Tomography: Advancing Human Performance and Emotional Insight**
**Source:** Collura TF, Wigton NL, Zalaquett C, Chatters-Smith S, Bonnstetter RJ. *The Value of EEG-Based Electromagnetic Tomographic Analysis in Human Performance and Mental Health.* *Biofeedback*, 2016; 44(2):58–65. [DOI: 10.5298/1081-5937-44.2.03]
# # # **Overview**
Collura and colleagues (2016) present how EEG-based **electromagnetic tomographic analysis (ETA)**—including **standardized low-resolution electromagnetic tomography (sLORETA)**—offers real-time 3D imaging of cortical activation. This technology allows clinicians and performance specialists to observe **precognitive brain processes** that precede conscious awareness, bridging neuroscience and applied practice in counseling, coaching, and biofeedback.
# # # **Key Insights**
* **Approach vs. Avoidance:** Left frontal gamma activation corresponds with approach-oriented responses; right frontal with avoidance or withdrawal.
* **Emotional Validity:** ETA imaging can confirm or contrast self-reported feelings, adding an objective dimension to emotional assessment.
* **Practical Applications:** Demonstrations showed differences in brain responses to languages, emotionally charged words, and behavioral cues (e.g., smoking), highlighting how neural patterns shape everyday decisions.
* **Speed and Precision:** ETA captures **six frames per second**, revealing subtle neural shifts that occur within 30 milliseconds—before conscious thought.
* **Future Promise:** ETA can inform **education, leadership, psychotherapy, and wellness**, enabling personalized strategies that align with individual brain patterns.
# # # **Clinical Translation with BrainMaster**
BrainMaster’s **Discovery 24E**, **Atlantis**, and **BrainAvatar® 4.0** systems bring this research into everyday clinical and research practice:
* **Assessment:** Use **qEEG with sLORETA** to visualize cortical sources and approach–avoidance asymmetry.
* **Training:** Combine **Z-Score neurofeedback** or **alpha/gamma balancing protocols** to support emotional regulation and performance.
* **Integration:** Generate reports through **Z-Builder** and **Brain Panel** for baselines, session tracking, and client education.
# # # **Suggested Visual Figure**
**Title:** *Frontal Gamma Asymmetry in Approach–Avoidance States*
**Description:** A side-by-side sLORETA 3D brain image showing left-frontal activation (approach/positive) vs. right-frontal activation (avoidance/negative). Use gradient color mapping (red = activation, blue = inhibition) to illustrate asymmetry in gamma band (38–42 Hz).
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# # # **Why It Matters**
By visualizing the neural signatures of emotion and decision-making, ETA empowers practitioners to:
* Identify hidden performance barriers or emotional triggers.
* Align coaching and therapy with each client’s unique neural dynamics.
* Track objective progress toward optimized mental performance.
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# # # **Call to Action**
**Experience BrainAvatar® with sLORETA.**
Discover how real-time EEG tomography can elevate assessment, training, and insight in your clinical or performance practice.
➡️ [**Explore BrainAvatar® 4.0 and Discovery 24E**](https://www.brainmaster.com)
➡️ [**Contact BrainMaster Technologies**](https://www.brainmaster.com/contact) for demonstrations, education, or research collaborations.
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> *Disclaimer: This content is for educational and informational purposes only and is not medical advice. BrainMaster products support clinical decision-making and training workflows. Clinicians should rely on their professional judgment, local regulations, and device labeling.*