Trust: What It Is and How to Recognise It

Trust is often described as a choice or a personality trait. From the perspective of how the brain actually works, however, trust is first and foremost a state of the nervous system — and it can be recognised by concrete, observable signs.

What happens in the brain when trust is present

When a person is locked in a chronic avoidance pattern, the frontal part of the brain — the cortex responsible for critical thinking and impulse inhibition — is effectively switched off. The brain responds automatically: stimulus → immediate reaction, with no pause and no evaluation. This is reactivity.

Trust arises when the avoidance programme no longer dominates. The frontal lobe comes online; a gap appears between stimulus and response. A person begins to perceive the world not as a threat but as an environment they can engage with.

How to recognise trust

Trust is not "enlightenment," and it is not a permanent state one can never fall out of. Its presence can be noticed through several signs:

• Openness without a defensive reflex. A person does not automatically "shut down" on contact with another. The doctor describes this as a child beside its mother, or an animal that presses close and relaxes out of attachment — complete openness without anxiety.
• Reduced reactivity. The same triggers that previously caused instant emotional flooding no longer produce an automatic response.
• Critical thinking remains intact. When trust is present, the cortex is working: a person can evaluate information rather than simply react to it. If critical thinking has switched off, what is present is merging or suppression — not trust.

What trust is not

Trust is not naivety and not the absence of boundaries. It is important not to confuse openness with an inability to detect manipulation. On the contrary — it is precisely a functioning frontal lobe that allows a person to notice when someone else is deliberately destabilising their emotions in order to disable their critical thinking. A reactive, "weak" brain does not notice this; it is already reacting.

Why trust comes and goes

This state is not fixed permanently. It is cultivated gradually, and can gradually recede — for instance under chronic stress, disrupted homeostasis, or when a person "starts slipping." The capacity for trust develops like a neural skill: it requires consistency and conditions in which the nervous system is stable enough to sustain it.