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Directional Warnings in Scientific Exploration——From the Study of Cellular Ion Channels to the Root Causes of Subversive Errors

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2026-04-18

Directional Warnings in Scientific Exploration
From the Study of Cellular Ion Channels to the Root Causes of Subversive Errors

 

Zuodong Sun

Ya'ou Brain Science Institute of Heilongjiang province

 

The course of scientific exploration is essentially a process of constantly correcting direction and distinguishing cause from effect. The more precise and complex the field, the more prone it is to falling into systematic misunderstandings due to underlying cognitive biases. Similar directional misjudgments exist in the study of cellular ion channels, and correcting such fundamental errors is crucial to the development of the discipline.

Bernstein’s early membrane theory proposed that the negative intracellular resting potential arises from a higher intracellular potassium ion concentration; potassium ions flow outward, leaving negative charges inside the cell. The Hodgkin–Huxley model, built on this foundation, became a classical theory and was awarded the Nobel Prize. However, this system contains a fundamental directional misjudgment in a key link: they attributed the large shift in action potential from −60 mV to +40 mV mainly to macroscopic ion flows driven by transmembrane ion concentration gradients, while relegating the critical dynamic arrangement and rapid exchange of ions closely attached to the inner surface of the cell membrane—those that maintain normal potentials—to a secondary or unclearly explained position in the theoretical model. Precisely this specific arrangement and cooperative movement of membrane-interface ions form the physical basis for the rapid generation and precise regulation of action potentials.

The Dovecote Theory: Applying principles of cellular physical biology, this theory elucidates the pathogenesis of sporadic Alzheimer’s disease at the molecular level. It states that non-essential cations compete with potassium ions for binding sites on the inner surface of the cell membrane, reducing membrane potential and causing abnormal action potentials that lead to abnormal apoptosis of brain cells. Amyloid proteins and plaques are deposits of remains after cell apoptosis, not the causative agents, fundamentally challenging the traditional Aβ hypothesis.

The Ion Channel Origami Windmill Model: Based on the above, the model proposes that the potassium ion channel is an independent functional unit: four α-helices rotate synchronously in the same direction, passively transporting K? unidirectionally without relying on ATP. Gating and ion selectivity are achieved through conformational changes via cooperative rotation, reinterpreting the mechanism of action potential generation. This further derives the Law of Conservation of Membrane Area and the Inequal Ion Equation, providing a self-consistent physical framework for understanding membrane potential that differs from the traditional ion concentration gradient–driven theory.

The history of science abounds with cases of reversed direction and confused cause and effect: the long transition from geocentrism to heliocentrism represents a typical reversal of cognitive frameworks; the phlogiston theory completely inverted the nature of combustion, severely delaying the progress of chemistry; gastric ulcers were long incorrectly attributed to stress or stomach acid, while the real pathogen—Helicobacter pylori and its mechanism—was long overlooked; the Hallucigenia fossil was misinterpreted with its dorsal and ventral sides reversed, an error that persisted in textbooks for decades. These facts warn that deviations in basic assumptions and mismatched causal relationships are the most fundamental and difficult-to-correct types of errors in scientific research.

Scientific research also follows Occam’s razor: entities should not be multiplied unnecessarily. The truth is often simple and direct; many complex ad hoc hypotheses usually stem from forced explanations to preserve an original framework after an initial directional deviation.

Rutherford, the father of nuclear physics, once admonished his students: “You are doing experiments all day; do you have time to think? Don’t forget to think!” He also left the famous saying: “We have no money, so we must think.” This reminds the scientific community: no matter how diligent the experiments or how precise the data, without continuous scrutiny of underlying assumptions and independent critical thinking, one will only reinforce the existing path and may even accumulate large amounts of “accurate” yet irrelevant “correct” data while deviating from the core truth.

Similar directional problems are prominent in the life sciences. Alzheimer’s disease research has long taken amyloid—a hallmark product after neurodegenerative lesions—and retroactively inferred it as the initial cause of the disease. This has led the entire field to focus on clearing protein deposits, yet massive investment has yielded no fundamental breakthrough. This again confirms the huge resource consumption and time cost of the directional error of mistaking “effect” for “cause”.

The most challenging aspect of scientific research is often not minor technical errors, but directional loss at the paradigm level. When a basic framework is biased, the more one pursues precise data and complex models under its guidance, the farther the entire system may drift from essential truth. Therefore, genuine scientific progress requires both solid experimental exploration and the constant courage to question fundamental assumptions, careful calibration of causal logic, and the determination to think independently beyond old paradigms. Only in this way can we avoid continued investment along a path of inverted cognition.

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