When OCD tries to prevent future doubt
A check may be about more than feeling certain in the moment. It may also be an attempt to create a memory that can later serve as evidence when OCD asks, “Are you absolutely sure?” The person begins preparing for doubt before it has even arisen. This article examines that less visible function of OCD.
What is a proactive function in OCD?
We often associate OCD with obsessions and compulsions. Yet the visible action does not necessarily reveal what the strategy is intended to achieve. A check may both reduce distress in the moment and prepare the person for doubt they expect to arise later.
The model of retrospective, reactive and proactive functions distinguishes between the different roles a strategy can take on. The part of the strategy that attempts to establish certainty in advance has a proactive function. The same check may also have a reactive function when it reduces present distress and a proactive function when it is intended to create evidence that can be used when doubt returns. This article explores that proactive function in depth.
The proactive function may involve checking especially carefully, committing details to memory, monitoring thoughts or deliberately focusing attention on an action so that it can later be reconstructed as evidence that everything was done correctly.
I developed the concept of the proactive function in OCD and first described it in my 2009 publication Den proaktive funktion ved OCD (The proactive function in OCD). I have since developed the concept further and incorporated it into a broader model of retrospective, reactive and proactive functions through my clinical work at OCD Klinikken. Later international research has independently described related proactive strategies intended to prevent or reduce future doubt.
A functional analysis using the model of retrospective, reactive and proactive functions therefore needs to examine what the person does, what the strategy is meant to achieve in the moment and what it is intended to provide later. This determines whether treatment merely reduces the extent of the ritual or also changes the function that keeps OCD going.
Memory evidence: when checking is meant to be used later
Memory evidence is a central example. The term refers to an attempt to create such a clear memory of an action that it can later be used as evidence.
A person with checking OCD may, for example, lock the door while deliberately taking in every detail: the sound of the lock, the sensation in their hand, the sight of the key, the resistance of the door and the inner sense that the action was completed correctly. The check then serves two functions: making sure the door is locked and giving the person something to hold on to if doubt returns on the way to work or later that evening.
Similarly, a person with contamination OCD may keep close track of everything their hands have touched since they last washed them. Ordinary memory cannot provide the kind of complete guarantee that OCD demands. The harder the person tries to remember every detail, the more apparent it may become that something could have been missed.
This is how memory evidence can become a trap. It seems sensible because it appears to provide greater control. At the same time, it teaches the brain that ordinary memory and a reasonable assessment of probability are not enough.
Monitoring: when certainty needs constant checking
Another proactive strategy is monitoring. Here, the person keeps a close watch on their thoughts, actions, bodily sensations or surroundings in an attempt to prevent something from going wrong.
Monitoring may involve repeatedly checking whether a particular thought has gone, whether the person feels “wrong”, whether their emotional response is correct, or whether their body is signalling unease, guilt or danger.
Because monitoring can look like responsibility, thoroughness or sensible preparation, it may be hard to spot. If something matters, it seems logical to keep an eye on it. In OCD, however, attention often becomes so heightened that it creates further doubt. What the person is trying to feel certain about may consequently take up more space, seem more significant and become harder to leave alone.
Why do proactive strategies help in the short term?
Proactive strategies can bring short-term relief because the person feels prepared for doubt that may come later. The preparation offers a sense of agency and can reduce helplessness.
The strategy can therefore gain a strong hold. It does not resolve OCD in the longer term, but it can feel useful in the moment. When doubt arises, the evidence may provide some relief. That relief makes the person more likely to use the strategy again.
The person may gradually learn that future doubt requires ever more preparation and control. Everyday tasks become slow and exhausting, and even minor interruptions may trigger renewed doubt.
Why do proactive strategies keep OCD going?
The proactive function keeps OCD going because it reinforces the premise that doubt can only be managed if sufficiently convincing evidence has been created in advance.
The problem is that OCD rarely accepts any evidence for long. A check may prompt a new question: “Did I do it carefully enough?” A memory may prompt further doubt: “Can I trust that I remember correctly?” Monitoring may lead to more monitoring: “Did I notice the right thing?”
The person therefore does not learn through experience that doubt can return after the event, feel convincing and still be left unanswered. If they learn only to check less, the later doubt may continue to control the situation.
The more the person tries to obtain certainty, the more OCD can demand. Treatment therefore focuses on recognising the strategy and practising a different response, both in the moment and when doubt returns later.
What do proactive strategies mean for OCD treatment?
When proactive strategies are present, treatment needs to examine both the visible compulsion and what the action is meant to provide later.
In exposure and response prevention, the work may need to extend beyond the checking, washing or other ritual itself. The person may need to practise refraining from building evidence or reconstructing the situation, and from monitoring their thoughts or seeking additional certainty from others.
Treatment must also address the point at which OCD later creates retrospective doubt: “Can I really trust that I did it correctly?” Here, the person learns to allow doubt to be present without turning to mental images, memory evidence, rechecking or analysis. Once the person can handle the later doubt, the need to prepare for it in advance diminishes.
Two treatments can look the same from the outside
Imagine a person with checking OCD who used to check the front door many times before they could leave home. After treatment, they now check only twice. This looks like clear progress, yet two courses of treatment with the same visible result may teach the person something very different.
When treatment focuses only on reducing checks
In the first course of treatment, the main focus has been the number of checks. The person has gradually reduced their checking and now stops after two checks. This is genuine progress, and OCD demands less time and energy in everyday life. Yet both checks still need to feel right, and the discomfort is harder to tolerate when the person needs to be away from home for longer. They still try to register the sound of the lock, the sensation in their hand and the image of the door so they can later convince themselves that everything was all right.
When doubt returns later in the day, they still use their memory as evidence. They try to reconstruct the situation mentally, sense whether the check felt right or find reassurance in details from the moment. OCD has become less visible, but the proactive function remains active. When the strain increases, the pattern can quickly intensify again.
When treatment also addresses the doubt that comes later
In the second course of treatment, the person also works to reduce the checking, but treatment does not end there. They practise checking in an ordinary way without deliberately creating a memory to use as evidence. They then practise facing the moment when doubt returns: “Can I really be sure that the door was locked?”
The task is to allow the doubt to remain rather than going back, analysing the check or trying to recreate a secure inner feeling. Over time, the person learns that they can stay with the retrospective doubt without giving OCD the evidence it demands.
Relatives should also avoid becoming part of the chain of evidence. This can happen when they confirm that something was done correctly or help the person reconstruct a situation. Support is not about providing new evidence. It means acknowledging that the doubt is difficult and helping the person stick to the treatment plan without engaging with OCD’s demand for evidence.
The two courses of treatment can look the same if we count only the checks. The difference becomes apparent when doubt returns. In the first course, the remaining checks must still provide evidence. In the second, the person can leave the doubt unresolved.
Fewer checks can free up time and energy. Treatment addresses the proactive function only when the person can also manage the later doubt without searching their memory for evidence.
Treatment becomes more precise when the question is not only “What does the person do?” but also “What is OCD trying to secure now so that the person will not have to face doubt later?”
From prevention to freedom
The proactive function explains why fewer or shorter rituals do not always change the OCD pattern. The strategy attempts to protect the person from later doubt that feels impossible to bear. The person must therefore also practise allowing this doubt to arise without responding with new evidence.
When the person can leave the question open, the need to check, remember, monitor and document in advance diminishes. The crucial shift does not occur when OCD is convinced, but when the person no longer needs to build certainty in advance before moving on.
Frequently asked questions about proactive OCD strategies
What is a proactive function in OCD?
In the model of retrospective, reactive and proactive functions, a strategy has a proactive function when the person tries to establish certainty in advance to avoid doubt they expect to arise later. It may involve a check, an especially clear memory, ongoing monitoring or other documentation intended to serve as evidence later. The same strategy may also have a reactive or retrospective function.
How does a proactive OCD strategy differ from ordinary preparation?
Ordinary preparation responds to a reasonable need and can end once the necessary steps have been taken. A proactive OCD strategy seeks a degree of certainty that doubt can still undermine. The person may therefore repeat or extend the preparation, then check it again.
What is memory evidence in OCD?
Memory evidence is an attempt to create an especially clear memory of an action so that it can later serve as evidence. The person may register sounds, visual details or bodily sensations while checking so they can later convince themselves that the action was completed correctly.
Can a proactive OCD strategy be mental?
Yes. The strategy may involve committing details to memory, mentally reviewing a situation in advance, monitoring thoughts or feelings, or creating a particular inner feeling to use later as reassurance. It need not be visible to others.
Why are fewer checks not always enough?
Fewer checks can be an important step forward. Yet if the remaining checks still need to feel completely right or provide evidence later, the proactive function remains active. The person should also practise handling the later doubt without resolving it through mental evidence, rechecking or analysis.
How can relatives avoid becoming part of OCD’s chain of evidence?
Relatives can become part of the chain directly by confirming that something was done correctly or helping to reconstruct a situation. It can also happen indirectly if the person uses them as an extra source of certainty because they were present, saw something, remember something or were the last person to do something. Support means acknowledging the distress and helping the person stay with what was agreed in treatment without supplying new evidence to OCD.