Incredible Brain Improvements

This piece is drawn from a conversation I had as a guest on Always Better Than Yesterday (ABTY). You can watch the original conversation. What follows is my own perspective, as a cognitive neuroscientist and brain-training coach, on what actually happens when someone trains their brain and we put a second map next to the first.

What does a follow-up brain map actually show?

The most rewarding part of my coaching work is a specific moment that happens around six to eight weeks into training. Someone sits down with me, we pull up their second QEEG brain map, and we put it side by side with the baseline we recorded before they started. On the screen, I can show them a clear shift toward the normative range in measures of executive function and cortical activity.

That shift means something concrete. A QEEG measures the power and distribution of brainwave activity across frequency bands at standardized electrode sites. When I describe a baseline as deviant, I mean the person's EEG at a given site sits well outside the normative range for their age. Movement back toward the center of that distribution is a large, measurable change on the bell curve. It is the difference between a brain that scores in the bottom few percent on a regulatory measure and one that scores near the middle of the pack.

How do you train your way from a baseline map to a better one?

Early on, training feels like working with a personal trainer. You show up, we set a target, and you report variable experiences. One week you tell me your mother-in-law made you furious and your focus fell apart. Another week you tell me something clicked. We adjust. We try a protocol, watch the response, and refine.

The mechanism underneath is operant conditioning of brainwave activity. In sensorimotor and EEG training, you produce a target rhythm and the system rewards it with feedback in real time. Over repeated sessions, the brain learns to generate that state more reliably on its own. For attention and self-regulation, a common target is sensorimotor rhythm, or SMR, the 12 to 15 Hz band over sensorimotor cortex. Training SMR is thought to engage the same thalamocortical circuits that generate sleep spindles, which is one proposed reason people frequently report both steadier daytime focus and better sleep (Sterman & Egner, 2006). That dual benefit is a well-replicated observation across SMR protocols.

Other protocols target the balance of slow and fast activity. In ADHD-pattern brains, the research describes a subgroup with excess theta relative to beta over frontal and central sites, which tracks with the activation-energy problem people describe as knowing what to do and being unable to start (Arns et al., 2013). Training that ratio down, or training alpha where the gating mechanism needs work, shifts the regulatory baseline. Alpha oscillations appear to actively inhibit task-irrelevant regions, so the research suggests improving alpha control sharpens what gets through and what gets filtered out (Klimesch et al., 2007).

What changes outside the clinic?

The map is the measurement. The reason it matters is what people notice in their lives. When someone comes back at week six, the report sounds different from the early sessions. Their mom has been noticing it. Their spouse has been noticing it. A teacher tells a younger client they seem focused now. The person tells me they feel proud of themselves.

That behavioral change lines up with the electrical change. Improved executive function on a QEEG corresponds to better task initiation, steadier attention, and more self-control in daily life. These are the same circuits, measured two ways. The map gives you the mechanism; the family and the teacher give you the outcome.

How much can the brain actually change?

The honest range matters here. Research on neurofeedback and cognition reports gains of varying size depending on the individual and the population studied, and the field's evidence is real but uneven. Motor-skill and performance improvements show up across groups in the research, from athletes to people recovering from brain injury. There is also structural evidence: studies have associated training with measurable changes on MRI, which appear to be a downstream consequence of repeated functional change rather than a direct effect of the feedback itself (Ghaziri et al., 2013).

I separate what I tell you by evidence strength. Functional EEG change and the behavioral gains that track it are well-established for the protocols used most. Structural MRI changes after training are emerging, supported by a smaller set of studies. The specific magnitude any one person will see is something I estimate from their baseline, not something I promise. None of this is a diagnosis or a treatment claim about any individual; it is what the research shows about brains and about neurofeedback as a method. You can read more about where the science stands in Is Neurofeedback Legitimate? and Does Neurofeedback Work for ADHD?.

What does this mean for someone starting out?

If you are considering training, the path is straightforward. We record a baseline QEEG to see your actual pattern, not a guess based on symptoms. We set protocols against what the map shows. You train, you report what you notice week to week, and we adjust. Around six to eight weeks, we record a second map and compare.

When that second map shows the shift, I get to point at the screen and tell a client, including the young ones, look at your brain, you changed it. Then the conversation turns to the next target. That is the part that keeps the work interesting: the brain is plastic, the change is measurable, and there is almost always something else worth training next.