Mental Fixation: The Brain Programs You Cannot Uninstall

Programs installed years ago are still running in your head, and there is no uninstall button. The host of the French-language PsykoCouac channel argues that nearly every mental health struggle runs on the same mechanism: fixation . In its broad sense, fixation means a system stubbornly repeating the same response. Sometimes that stubbornness protects you, sometimes it wrecks your life. Mistrust learned from harsh parents becomes a trap once it spreads to everyone you meet. This article follows the video's argument together with current research findings, in plain language.

The host uses fixation as the umbrella name for a large family: rigid schema, mental set, mental block, design fixation. The mechanism can be adaptive or destructive: staying alert in danger protects you, staying alert after the danger has passed exhausts you. The everyday examples feel familiar: the anxious employee who reads the same email fifteen times, the depressed person convinced they are finished, the trauma survivor locked in danger mode, the person with low self-worth who dismisses their own value. Tastes, attachments and orientations can all be read through this lens, and obsessive-compulsive patterns sit at its most rigid extreme. According to Wikipedia, the Einstellung effect shows the same stubbornness in problem solving: after solving many water-jar problems with one method, people keep using it even when a simpler road is open, because Luchins' 1942 study proved how previous experience stamps new problems, a finding that also illuminates rigid repetitions in mental health.

Memory Is a Network, Not a Filing Cabinet

The host finds this ubiquity unsurprising, because the raw material of fixation is memory itself. Nobody is born checking email, clinging to a creed or living in gloom; these responses are the sediment of lived days. A child who lives through hard years records that tomorrow will be hard too, and the adult keeps reading the world through that record. But the archive is nothing like tidy shelves. Memory works as a network : when one word is heard, everything close to it in sound, spelling and meaning wakes up together. The host demonstrates this with a wordplay in his own language. A childhood record such as 'expect nothing from others' can fire decades later at an innocent remark about a film you love, switching on a defense with no enemy in sight. Fixation, then, is a memory network strong enough to seize behavior through frequent firing.

These records carry no single-event stamp; temperament, close circle and conditions write them together. A grumpy, withdrawn child raised by harsh parents may learn to read the world through a 'strike first' rule. The recorded sentence is not 'I am finished' but 'expect nothing from others'. According to the cshlp review by Karim Nader of McGill, a recalled long-term record briefly turns malleable, and this reconsolidation window is an effect known for over fifty years, grounded in rat fear-conditioning work and carrying genuine hope for treatment. The finding completes the video's intuition that records cannot be deleted: the road forward is to add a new trace beside the old one at the moment it fires.

Why does the brain cling to these programs so stubbornly? The first answer is the reward-effort calculus . The brain prefers the tried, cheap road over the uncertain one that demands effort. Skipping public speaking pays off in the moment: no movement, no danger. The person reaching for the same relief every evening runs the same math; no outside product delivers that much comfort for that little effort. When access gets harder and the cost of obtaining rises, craving falls, and addiction research confirms the equation. That is also why change on the therapeutic road costs so much effort, and the host points here to his video on willpower: choosing the low-effort road is not weak will, it is the brain's default setting, and the road toward health starts by making peace with that setting.

A Brain With Weak Brakes

The second answer is the high price of flexibility. Sometimes the fault is not in the accelerator but in the brakes: the gear that should stop the program never engages. As the host's emotion-management video explains, the brain regions that serve as brakes evolved late, run slowly, tire quickly and cost a fortune to develop. The result shows clearly in people with a borderline personality pattern and in maltreated children: imaging studies find they are no more sensitive than others, while the regions meant to calm them underperform. A harsh past leaves marks, but the heavier burden is never having learned the way out of them. According to the Psychiatryonline study by Silbersweig and colleagues from 2010, the ventromedial prefrontal cortex fails to engage when inhibition is needed under negative emotion in borderline personality, a neural counterpart of the regulation struggle. The 2023 Bielefeld study in Frontiersin completes the picture: insular activity drops during acceptance while caudate activity rises during suppression, so the mode of the brake decides the outcome, a lesson that guides emotion-regulation work in mental health.

The third answer is the race between the habit system and the reflection system. Both stay online, but the side demanding less effort wins most rounds. Fifty thousand years ago the fast responders survived, not the deep thinkers, and the habit system remains that era's heir in today's snap decisions. According to the NIH-hosted study by Michiels and colleagues, overtrained stimulus-response links raise the cost of switching back to goal-directed control, a cost measured in longer reaction times; habit expression runs on sensorimotor areas and the posterior putamen, while goal-directed control recruits the posterior caudate, the insula and prefrontal regions. So the brain keeps the old road not only from fondness, but because it sees the bill for switching.

The fourth answer is sneakier: fixations feed themselves. A mind locked on 'what do people think of me' sends the twenty-times-checked email, receives a warm reply, and instead of calming down latches onto one uncertain detail and moves the inspection there. New information never refutes the system; it becomes the system's material. People with low self-worth convert positive experience into negative, and in depression attention keeps gathering 'finished' evidence. Inside the loop a voice always says 'keep going, look, the system works', which makes this largely an attention problem. Change therefore never comes from information alone; it starts with noticing the self-feeding loop .

Between Stability and Plasticity

The fifth answer is the stability-plasticity balance . Since fixations are records of past learning, the cure looks like destruction, but the brain destroys grudgingly. Moving from tennis to table tennis means not only learning new strokes but partly dismantling old ones, and overdoing the dismantling ruins your tennis too. Had the brain erased everything each time, every day would start from zero; had it erased nothing, every day would repeat yesterday. Problem-solving studies confirm the pattern: solvers trained on the long road keep taking it with the shortcut wide open. According to the 2021 Uddin review in Nature, flexibility runs on large-scale networks spanning lateral and orbital frontoparietal regions, the midcingulo-insular belt and frontostriatal pathways, with cognitive training, regular exercise and bilingual experience counted among the roads that support these networks. The host's promise for the next video points at the same balance: build a new structure around the faulty program instead of burning it.

A side note adds emotional weight : the more a matter means to you, the stronger the fixation grows. That is the annoying part for humans; rigidity peaks exactly where flexibility matters most. According to the Kent-hosted text by Luoma and Hayes, cognitive defusion lets a thought be seen as an ongoing process, an approach rooted in cognitive distancing, described by Beck and Hollon in 1979 as the first critical step, and developed through Hayes's 1987 comprehensive distancing into acceptance and commitment treatment. The host stresses that these accounts compete with nobody; they complete each other, and his practical advice is to pick the angle that speaks to you, because the coming video tells the loosening roads from each angle. For anyone who has spotted their rigid programs, that is a fine start.