【Deep Brain Science】Is Your World Bound by "Scotoma (Psychological Blind Spots)"? The Tomabechi Method Reveals the Secret to Breaking Free from Cognitive Shackles and Reaching "Beyond the Status Quo"

Is what we call “reality” truly an objective truth? Or is it merely an extremely biased “illusion” created by the filter that governs our finite brain resources? Countless opportunities, profound truths, and rich human connections constantly lie before us as we live in modern society. Yet, most of them slip through the net of our consciousness and vanish into the void.Physical light reaches the retina, yet it is never projected onto the screen of consciousness—we cannot truly say we are living our own lives without unraveling this mysterious phenomenon.

The key to unlocking this phenomenon of “seeing yet failing to recognize” lies in the cognitive science concept of “scotoma” (psychological blind spot). Dr. Hidetoshi Tomabechi, a world-renowned cognitive scientist and master coach, asserts that this principle of scotoma is both the greatest factor limiting human potential and, when properly understood, the most powerful lever for dramatically transforming one’s life.Dr. Tomabechi himself asserts that “without understanding this, the Tomabechi Method cannot be grasped,” underscoring how central this principle is to self-transformation.

This article thoroughly explores the “Scotoma Principle,” the foundation of the Tomabechi Method. We examine how the brain blocks information and solidifies our reality. We then delve into insights from both neuroscience and information theory, physics, and existential philosophy on how to break through this “cage of perception” and reach true goals beyond the current reality—goals once unimaginable.If you currently feel a sense of stagnation or limitation in your life, it may not be due to any lack of ability, but simply the result of scotoma caused by your brain’s survival strategy. Let’s begin this “journey of knowledge” to break free from those shackles.

The Brain’s Limitations and the “Scotoma Principle”

The term “Scotoma” originates from the Greek word meaning “darkness” or “shadow,” and is a specialized term in ophthalmology. Deep within our eyeballs lies the optic disc, where bundles of optic nerves connect to the brain. This area lacks photoreceptor cells, creating a physical “hole” incapable of detecting light. This is called the physiological blind spot.

Yet, in our daily lives, we never sense a gaping black hole in our field of vision. Why? Because the brain “infers” the missing part based on surrounding images and information from the other eye, filling in the gaps to create a seemingly perfect world. In other words, we are constantly seeing a “coherent world fabricated by the brain,” not the objective images themselves.

The legendary coach Lou Tice expanded this mechanism of the physical blind spot into the realms of psychology and cognitive science, applying it to human capability development. He named this aspect of the mind, where “the brain automatically filters out information we deem unimportant,” scotoma.Just as eyes have blind spots, our minds possess vast “unrecognizable domains.” This is not merely a metaphor but a phenomenon grounded in extremely physical and rational reasons vital to our survival.

The Brain’s Energy Consumption and Information Processing “Shortcut” Mechanism

Why does our brain need to block out so much information and create scotomas? The answer lies hidden in the brain’s astonishing energy consumption structure.The human brain contains roughly 16 billion neurons (brain cells) densely packed together, each forming networks with thousands of synapses. The total number of these connections is estimated by some to be 100 trillion, a complexity said to rival the total number of observable galaxies in the entire universe.

If the brain attempted to process all the vast information entering through the five senses (sight, hearing, touch, taste, smell) at full speed and in parallel, without missing a single bit, the computational load would be unimaginable. Estimates from early supercomputers suggest that running the human brain at full capacity would require an enormous amount of electricity, equivalent to that produced by a single nuclear power plant or a massive substation.

However, the amount of food we humans can consume in a day is limited. Physically supplying such enormous energy is impossible. Therefore, the survival strategy chosen by our life-filled brain during evolution was thorough “shortcuts” and “information discarding.”The brain prioritizes processing only the information that “directly impacts survival in this very moment” or that “past experience has judged valuable,” discarding everything else as “noise” into the trash bin, thereby minimizing energy consumption.The scenery we “see” is nothing more than a “low-resolution digest version” synthesized by the brain with the least possible effort. We can say that scotoma was an essential “wisdom” for life preservation, protecting the brain from overheating and saving it from starvation.

Importance Function and Selective Perception

In cognitive science, the internal algorithm determining this evaluation criterion of “what to see and what to discard” is called the “Importance Function.” This function is constantly active when we perceive the external world. Only what the function flags as “1 (important)” rises into consciousness, while what is deemed “0 (unnecessary)” blends into the background, vanishing beyond the frame of perception—into the scotoma.

The wristwatch experiment often cited by Dr. Tomabechi vividly demonstrates the workings of this importance function. “Without looking at your wristwatch right now, draw its face accurately.Once you’ve drawn it, look at your actual watch and record the time.” Something strange happens. Despite seeing your watch hundreds of times daily, most people cannot accurately depict the font of the numbers, the precise position of the brand logo, or the intricate shape of the hands. This is because the brain’s purpose for looking at the watch is “to know the current time,” and the function processes the appreciation of design details as “unimportant” for survival.

What’s even more intriguing is that when instructed to “look at the watch for grading,” you can scrutinize the design in detail. Yet, when asked “What time was it just now?” you often can’t answer. The moment your conscious focus shifts to “grading (checking details),” the original purpose—the “time” information—gets hidden in a scotoma.We are not “seeing what we want to see”; rather, we are “extracting only what is judged important to construct our perception.” Understanding this principle alone should reveal how far we live in a subjective cage, detached from the “world of truth.”

The Cage of Perception: Why We Only See What We Want to See

Physically governing this scotoma is a neural system called the “Reticular Activating System (RAS)” that spans from the brainstem to the midbrain. The RAS functions like a massive gatekeeper, sifting through the vast amount of information—said to be 11 million bits per second—entering through the five senses. It selects only the few pieces of information relevant to us and sends them to the cerebral cortex.

So, what criteria does the gatekeeper RAS use to judge what is “important”? There are primarily three criteria. The first is “information vital to sustaining life (such as fear, hunger, sexual desire, etc.)”. The second is “information related to one’s own name, beliefs, or identity”. And the third is “information one is interested in and holds a strong interest in”.

For example, the “cocktail party effect” – where you instantly hear your name being called or keywords related to a passion you’re deeply invested in, even amidst a noisy party – is a result of the RAS at work.Conversely, for someone with no interest in the latest hybrid cars, vehicles on the street are merely “moving blobs.” But the moment they decide, “I’ll buy a Prius,” they suddenly notice an astonishing number of Priuses everywhere. Though the same streets remain, their RAS filter has been rewritten, causing hidden information to “emerge” from the scotoma.

Analyzing it this way reveals that our “reality” is the result of being arbitrarily filtered by our knowledge, beliefs, and roles (like being a father, company employee, or expert).We think we observe the world with free will, but in reality, we are trapped within the “cage of perception” created by our own RAS. And frighteningly, as long as we remain within this cage, we absolutely cannot perceive the “solutions” or “opportunities” outside it, even if they are right before our eyes. This is the physical reason why so many people cannot escape their current situation.

The Mechanism by Which Scotoma Fixates Reality (Homeostasis and Goals)

Further examination reveals that scotoma does more than just block information; it plays a vicious role in binding our “future” to an extension of the past.Humans possess a powerful biological function called “homeostasis” that strives to maintain the current state. Just as sweating occurs to lower body temperature when it rises, a force constantly works to swing our self-image, social positioning, and comfort zone (familiar territory) back within a certain range.

For the brain, maintaining the current you is an “established survival strategy”—an efficient state that requires minimal energy.In contrast, “change” or “unknown challenges” are perceived solely as risks requiring enormous energy expenditure. Therefore, to maintain homeostasis, the brain prioritizes “reasons to affirm the status quo” or “excuses to remain where we are,” even when dissatisfied, intentionally pushing information necessary for change into the scotoma.

Dr. Tomabechi cites the results of a statistical survey conducted jointly by Lou Tice’s organization and the U.S. government. According to this survey, the average lifespan of people who retired from a company they had worked at for many years and entered a state of “no longer needing to do anything (having lost their goal)” was a shockingly short 1 year and 6 months. This is not merely a matter of aging.It’s because a brain that has lost its goal (importance function) loses the reason to predict tomorrow’s future and process information, effectively turning off its own life-sustaining switch. For the brain, “having no information that needs to be seen tomorrow” means practical death.

We recognize today based on yesterday’s memories and predict tomorrow from that recognized world.When this “memory → recognition → prediction” loop is closed, our future becomes deterministically fixed. Your blind spot is a powerful psychological barrier keeping you “the same as yesterday,” making you a slave to the status quo. To break this negative chain, it requires not mere effort or grit, but violently rewriting the “importance function itself”—the very core of information processing.

The Ultimate Significance of Setting Goals “Outside the Status Quo” (Invent on the Way)

So, how can we break through this robust homeostasis of “status quo” and peel away the scotoma from its very foundation? The answer lies in the core of the Tomabechi Method: “Setting Goals Beyond the Status Quo.”

Many people tend to set goals based on “what they can do now” or “what seems achievable.” But that won’t change anything. Because “what you can do” already lies within your comfort zone, and the information needed to achieve it is already within your awareness (= no new information emerges from the scotoma). A true goal must be something “utterly impossible for your current self to achieve, and for which you have absolutely no idea how to proceed.”

The moment you set a goal so vast that you “don’t know how to achieve it,” your brain’s importance function undergoes a restructuring accompanied by unprecedented panic and excitement. By placing the goal at the “center,” a vast amount of information previously judged as “0 (unnecessary)” suddenly begins to shine brightly as “essential resources indispensable for achieving the goal.”This is the true meaning behind Lou Tice’s golden rule: “Invent on the Way.” When Edison invented the light bulb, he didn’t understand every physical law from the start. It was precisely because he never moved from the goal of “making it light” – a goal outside his current reality – that the previously overlooked filament material emerged from his blind spot.

Pushing this insight to a deeper level, understanding scotoma even touches on the creation of the universe. As the “many-worlds interpretation” in quantum mechanics suggests, the universe contains an infinite number of possibilities (wave states) existing in superposition.When we set our own importance function (observation conditions), one reality converges and becomes recognized from within that infinite potential. In other words, removing your blind spot and incorporating new information into your awareness is not merely a matter of mindset. It is the very act of increasing the “resolution” of the universe you experience and materializing another parallel world.

By rewriting our own filters of perception, we are literally creating “new worlds.” The key to accessing the vast cosmic truth “beyond the status quo” lies not in intellect or academic credentials, but in the courage to consciously control our own blind spots and design our own significance. The future is not something to be predicted, but something to be “discovered” by removing our blind spots.

Conclusion and Next Actions for the Future (Three Habits to Remove Your Blind Spots)

The cold yet hopeful truth the “Scotoma Principle” confronts us with is this: “The solution to your problem already exists before your eyes. It’s just that your RAS has judged it unimportant and hidden it within your scotoma.”

The reality we experience is like an extremely constrained, “unfree dream” presented by the brain—an organ bound by energy efficiency. To awaken from this dream and attain true freedom, incorporate the following next actions into your daily life starting today.

• Question your “certainty”: Always be aware that behind your fixed beliefs lies a vast blind spot. Doubting your own correctness creates space to accept new information.
• Set a massive goal “outside the current reality”: Instead of fearing that you don’t know how to achieve it at all, cultivate the habit of feeling joy that “the most worthwhile blind spot to rewrite lies there.”
• Shake up your comfort zone: Visit places you don’t usually go, pick up books in fields you don’t normally read. Intentionally feed disparate information to your RAS to prevent functional rigidity.

The universe of truth overflows with trillions of times more information and abundance than we currently perceive. The key to unlocking the “prison of perception” called the scotoma is already in your hands. It is the decision to “choose what matters for yourself.”Shed the mirror image of your past self that is your current reality, and expand your perception into the world of unknown light. Beyond the removal of the scotoma lies a new, abundant reality where you yourself emerge as the creator.