a Perceptual Mechanism for measurement, judgement and meaning
Your sensory system is not designed to detect absolutes.
It is designed to detect change, difference, deviation…. aka. contrast.
- For the brain to make sense of the data collected from your eyes on “brightness”, there needs to be a register on the change in “brightness”.
- For the brain to make sense of the data collected from your skin, on pressure, there needs to be a register on the difference in “pressure”.
- For the brain to make sense of the data collected from your ears, it needs to register change in the vibrations of air.
Every single sensory channel is a contrast detector.
The brain is built to register delta, the difference between now and before.
If you’re interested in reading more about how our body is decoding frequency and vibration, read this article:
The 11 Million Bits Problem
In QLC #36, I wrote about the brain’s extraordinary filtering system, how 11 million bits of sensory information arrives every second, but only approximately 40 bits ever reach conscious awareness. The rest is handled below the surface, triaged by the prediction library the brain has already been built from prior experience.
The triage process is fundamentally a contrast operation.
❗When the brain scans incoming data, it is asking constantly, automatically, beneath awareness “does this differ from what I predicted?” If the answer is no, the data is suppressed. If it matches the model; it carries no new information; it is filtered out. Only the data that deviates from prediction that presents contrast against the background of expectation makes it through to conscious processing.
This is why novelty wakes us up. This is why surprise is neurologically distinct from ordinary experience. This is why emotional charge attaches to the unexpected far more readily than the familiar.
Your brain is a contrast-detection engine first. Everything else is downstream of that.
If you’re interested in reading more about the Brain on Prediction and Perceptions, you can read this article:
Measurement Requires a Reference Point
And so, Perception (interpreting and making sense of incoming environmental data), requires Contrast.
In other words, it needs something “relative” to measure against it.
You cannot know how tall something is without something shorter beside it. You cannot know how slow a process is without having measured a faster one. You cannot determine whether something is good or bad, better or worse, enough or not enough without a reference point against which you are measuring it.
🤌🏼 Every judgment ever made has a measuring stick behind it. And that measuring stick is always composed of contrast, the implicit opposite that gives the judgment (interpretation) its meaning.
Contrast Is Also How We Know What We Want
The fastest way to arrive at clarity, is to know what we don’t want, first. Then, we can understand instead what we DO want.
Through discontentment, we understand our longing.
Dissatisfaction is a contrast signal.
Misalignment is a contrast signal.
The feeling of being in the wrong life is a contrast signal.
The restlessness, the sense that something is missing, the quiet knowing that this isn’t it; these are not failures of direction. They are contrast data. The mind is registering deviation from something it knows, somewhere, to be more aligned.
This is why contrast exists in life, as the perceptual mechanism by which we get clearer on what we actually came here for.
📌 The dissatisfaction isn’t the problem. It’s the signal. Contrast is the mind’s way of pointing toward alignment.
If you would like a great article to understand what you DO want, I recommend my article here:
Judgment as a Contrast Operation
Judgement is a form of interpretation. And every judgement has two components: a subject, and a reference point.
- “That was wrong”; wrong compared to what?
- “She is unkind”; unkind relative to which standard of kindness?
- “This situation is unfair”; unfair against which expectation of fairness?
This is why everything in our reality is Subjective or Relative.
Judgment, at its most basic structure, is a comparison. It is a contrast operation. And the reference point it measures against is the implicit pole, the opposite that makes the judgment coherent.
I wrote an article on reclaiming information, which is connected to this topic here, based in “selective contrast”. When we label an experience we are measuring the deviation in one direction and ignoring the equal and opposite presence on the other side. The conscious brain is running a contrast operation, but with incomplete data. This article, dives into this on reclaiming the Whole of experience.
The Law of Duality: Equal Complementary Opposites
I speak about the Law of Duality here, specifically, as described by the work of Monica Ion, in which it is described that everything within reality exists as a whole with dual equal opposite complementary halves.
The dual nature of reality exists because consciousness requires contrast to perceive and make meaning of experience.
Duality is the very structure that allows consciousness to know itself and have experiences. And, so, the very act of perceiving anything at all, requires the Law of Duality to operate. It’s the structural condition that makes everything we call the “human experience” possible.
You experience the Law of Duality at all times.
Seeing the Whole Field
When contrast is processed through wholeness, when the perceiving mind can hold both poles simultaneously, can locate the support in the apparent challenge, can find the order in the apparent chaos, something shifts. Now the full data is available. And full data, as DeMartini & Monica Ion would both say in their own way, is what reclaims the hidden order.
You cannot stop experiencing contrast. It is the mechanism of perception. You are built for it. The question is: “what am I doing with the contrast data?”
“Am I using it to locate the opposite to find the wholeness, to reclaim the missing information. OR am I using it to reinforce a one-sided story that keeps me oscillating between seeking and avoiding?
Lastly,
Contrast, as you can see is design, the design of experience.
— Elena
Quantum Leaps of Consciousness
Bridging quantum reality, consciousness, and human potential into an architecture for living.
📢 Academic References:
1. Rao, R. P. N., & Ballard, D. H. (1999)
Predictive coding in the visual cortex: A functional interpretation of some extra-classical receptive-field effects.
Nature Neuroscience, 2(1), 79–87.
doi.org/10.1038/nn0199_79
The landmark peer-reviewed study establishing that the brain processes sensory input by comparing incoming signals against top-down predictions, only the deviation (contrast from expectation) propagates forward.
2. Friston, K. (2010)
The free-energy principle: A unified brain theory?
Nature Reviews Neuroscience, 11(2), 127–138.
doi.org/10.1038/nrn2787
Friston’s foundational paper proposing that the brain’s primary drive is to minimize prediction error, ie. surprise. Perception is the brain’s active management of the gap between prediction and incoming signal. One of the most cited papers in neuroscience.
3. Clark, A. (2013)
Whatever next? Predictive brains, situated agents, and the future of cognitive science.
Behavioral and Brain Sciences, 36(3), 181–204.
doi.org/10.1017/S0140525X12000477
Andy Clark’s peer-reviewed synthesis of the predictive brain framework: the brain as a hierarchical prediction machine that suppresses expected input and elevates only contrast signals.
4. Barrett, L. F. (2017)
The theory of constructed emotion: An active inference account of interoception and categorization.
Social Cognitive and Affective Neuroscience, 12(1), 1–23.
doi.org/10.1093/scan/nsw154
The peer-reviewed academic paper underlying How Emotions Are Made. Barrett’s formal theory that emotions and perceptions are constructed predictions, not passive reactions, directly supporting the article’s section on judgment as a contrast operation and the meaning-construction loop.
5. Seth, A. K., & Bayne, T. (2022)
Theories of consciousness.
Nature Reviews Neuroscience, 23(7), 439–452.
doi.org/10.1038/s41583-022-00587-4
Seth and Bayne’s peer-reviewed review of consciousness theories, including the “controlled hallucination” framework, perception as an inside-out, top-down construction that reality merely constrains.
🧠 And, you can learn further about this topic in these resources:
On the Brain as a Contrast-Detection & Prediction Engine
- Lisa Feldman Barrett: How Emotions Are Made: The Secret Life of the Brain (2017, Mariner Books) The foundational source for the predictive brain model — how the brain constantly generates predictions from prior experience and only updates on contrast (prediction error).
amazon.com/How-Emotions-Are-Made - Anil Seth: Being You: A New Science of Consciousness (2021, Dutton)
Seth’s “controlled hallucination” thesis; perception is not a window onto reality, it is a top-down, inside-out construction the brain generates and reality merely reins in.
anilseth.com/being-you - Anil Seth: TED Talk: “Your Brain Hallucinates Your Conscious Reality” (2017, TED)
A 17-minute accessible companion to Being You, the fastest way into Seth’s core argument if you prefer video over reading.
ted.com/talks/anil_seth - Karl Friston: “The Free-Energy Principle: A Unified Brain Theory?” (2010, Nature Reviews Neuroscience)
The mathematical backbone underlying predictive coding, the brain as a system wired to minimize prediction error, not passively receive input. More technical, but worth knowing the source.
nature.com/articles/nrn2787
On the Law of Duality & Values as Measuring Sticks
- Monica Ion & Stefan Irimia: The 7 Universal Laws: The Hidden Rules Behind the Mind, Emotions, and the Architecture of the Universe (2025)
The primary source for the Law of Duality as discussed in this article, the framework through which reality exists as whole complementary opposites, and how seeing both sides dissolves the polarized perception that creates suffering.
amazon.com — The 7 Universal Laws - John F. DeMartini: The Values Factor: The Secret to Creating an Inspired and Fulfilling Life (2013, Berkley Books)
DeMartini’s framework for how the brain uses a personal values hierarchy as its primary measuring stick for all judgment and meaning-making, directly connected to the “measurement requires a reference point” section of this article.
drdemartini.com/about-values
On Perception, Meaning & the Construction of Reality
- Andy Clark: Surfing Uncertainty: Prediction, Action, and the Embodied Mind (2015, Oxford University Press)
Clark’s accessible companion to Friston, the argument that we are not passive receivers of reality but active predictors constantly riding waves of prediction error. - Lisa Feldman Barrett: Seven and a Half Lessons About the Brain (2020, Houghton Mifflin Harcourt)
A shorter, more conversational complement to How Emotions Are Made, ideal if you want the core ideas in a lighter read.
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