Dependence: What Happens in the Brain and How to Recognize It

Dependence is often seen as a character flaw or a lack of willpower. But beneath it lies a specific biological mechanism — the very one Dr. Saулitis describes when explaining how the brain forms any lasting behavioural pattern.

The Brain "Grows" Pathways

Every time we do or experience something, the brain produces a new "film" — a neural response. When the same thing repeats many times, brain cells literally grow into each other: a stable connection forms, a ready-made road along which an impulse travels almost automatically. It follows the same principle as the classic conditioned reflex: signal → response, signal → response, until the response fires without the signal. The result is not merely a habit but an actual brain structure.

How the Ability to Resist Is Lost

Dr. Saулitis stresses that people vary in how susceptible they are to external influence — shaped largely by constitution and the environment in which the brain developed. When an influence (substances, behaviour, surroundings) persists long enough, a person stops perceiving that any choice exists at all. They see only the "film" already built by their neural pattern — and take it for reality.

Signs That the Pattern Is Already in Control

Understanding this mechanism helps recognise dependence. Key signals:

• Automaticity: craving is triggered by a smell, a place, an emotion — before the person has time to think.
• Narrowing of the "cinema": from many possible scenarios, the person ends up in the same one over and over — the one that includes the substance or behaviour.
• Loss of a sense of choice: the person is convinced they "cannot" do otherwise, even though this is not obvious from outside.
• Resistance to the evident: even clear consequences do not change the film — the neural pathway overrides new information.

Why Understanding This Matters

"The picture you see and the way you see it is determined by the pattern of neural connections" — this is not a metaphor but a mechanism. Recognising dependence starts precisely here: not with self-judgement, but with the realisation that the brain has grown a specific structure — one that can be seen and, in time, addressed.