Stockholm syndrome is a psychological response in which hostages or abuse victims develop positive feelings toward their captors. The term dates back to a 1973 bank robbery in Stockholm, Sweden, and while it has become one of the most widely referenced concepts in popular psychology, it is not an officially recognized psychiatric diagnosis. Understanding what it actually describes, where it came from, and why many experts now question it gives a much clearer picture than the simplified version most people encounter.
The 1973 Bank Robbery That Started It All
On the morning of August 23, 1973, an escaped convict named Jan-Erik Olsson walked into the Sveriges Kreditbanken bank on Stockholm’s Norrmalmstorg square, pulled a submachine gun from under a folded jacket, fired at the ceiling, and announced in English: “The party has just begun.” He took four bank employees hostage and demanded more than $700,000 in currency, a getaway car, and the release of another imprisoned criminal, Clark Olofsson.
What happened over the next five and a half days is what made the case famous. Trapped inside a cramped bank vault, the hostages began forming unexpected bonds with their captors. Olsson draped a jacket over one hostage when she shivered, soothed her after a bad dream, and gave her a bullet from his gun as a keepsake. When another hostage complained of claustrophobia, he let her walk outside the vault on a 30-foot rope. By the second day, hostages were on a first-name basis with the gunmen and had started to fear the police more than the people holding them at gunpoint.
Hostage Kristin Enmark phoned the Swedish Prime Minister directly, pleading with him to let the robbers take her with them in the getaway car. “I fully trust Clark and the robber,” she told him. After more than 130 hours, police pumped tear gas into the vault and the captors surrendered. But the hostages refused to leave first, insisting the robbers exit ahead of them so police wouldn’t shoot. In the doorway of the vault, captors and hostages embraced, kissed, and shook hands. Two of the female hostages cried out, “Don’t hurt them. They didn’t harm us.”
A Swedish psychiatrist and criminologist named Nils Bejerot, who had consulted with police during the siege, coined the term “Norrmalmstorg syndrome” to describe the hostages’ behavior. The international press shortened it to “Stockholm syndrome,” and the concept entered mainstream culture almost overnight.
How It Presents
People described as having Stockholm syndrome typically show three core patterns: positive feelings toward the captor or abuser, sympathy for the captor’s beliefs and behaviors, and negative feelings toward police or other authority figures trying to help. Beyond that emotional shift, the experience often overlaps with post-traumatic stress. Flashbacks, difficulty relaxing, feeling jittery or on edge, loss of interest in things previously enjoyed, and trouble concentrating are all common.
These responses don’t happen in every hostage situation. Most estimates suggest only a small fraction of hostages develop this kind of attachment. The conditions thought to make it more likely include a genuine perceived threat to one’s life, isolation from outside perspectives, small acts of kindness from the captor (even something as minor as offering food), and a feeling that escape is impossible.
Why It Happens: Survival, Not Affection
The popular narrative frames Stockholm syndrome as victims falling in love with their captors, but psychologists increasingly see it as something more basic: a survival strategy. When someone is trapped in a life-threatening situation with no way out, their nervous system shifts into a mode geared entirely toward staying alive. One way to reduce danger is to calm the person who holds the power, and one way to calm them is to mirror their emotions, show agreement, and build rapport.
Some researchers have proposed replacing the term “Stockholm syndrome” entirely with “appeasement,” a word that better captures what’s actually happening. Under this framework, the victim isn’t bonding with the captor out of genuine affection. They’re co-regulating the captor’s emotional state, keeping the situation stable to minimize the chance of violence. This process isn’t conscious or deliberate. It’s a reflexive neurobiological response to terror, the brain’s way of protecting the body when fighting or fleeing aren’t options.
This reframing matters because it shifts the focus from pathologizing the victim to recognizing their response as adaptive. Calling it appeasement emphasizes the power imbalance in the relationship and normalizes the coping response as a survival technique, which can support healthier long-term recovery.
Famous Cases (and Misapplied Labels)
Patty Hearst is probably the most cited example after the original Stockholm hostages. In 1974, at age 19, she was kidnapped by a left-wing guerrilla group called the Symbionese Liberation Army. Over weeks of captivity, her recorded messages shifted dramatically. She eventually announced she had joined the group willingly, participated in bank robberies, and helped extort up to $2 million from her own father. Audio recordings captured a clear progression from terrified hostage to apparent true believer, a trajectory that became a textbook illustration of Stockholm syndrome in criminal psychology.
Elizabeth Smart’s case, however, shows how easily the label gets misapplied. Smart was kidnapped at age 14 in 2002 and held for nine months, yet psychologists debated for years whether Stockholm syndrome explained why she didn’t flee. Many assumed it did. Smart herself has firmly rejected the idea. “Those that say otherwise don’t know what was going on inside my head,” she has said. She reports never developing empathy or affection for her captors. What kept her from escaping was psychological manipulation and rational fear of her captor’s threats, not an emotional bond. Her case illustrates a pattern where media coverage and outside observers project the syndrome onto situations where the victim’s own account tells a different story.
Not an Official Diagnosis
Despite its cultural ubiquity, Stockholm syndrome does not appear in the DSM (the standard diagnostic manual for mental health conditions in the United States). The American Psychiatric Association has never officially recognized it. There are no validated diagnostic criteria, and the empirical research base supporting it as a distinct condition is thin.
This matters for several reasons. Without standardized criteria, the label gets applied inconsistently, often by outside observers rather than the individuals themselves. A review of professional literature on survival techniques during violent crimes found a lack of validated criteria and limited research to support the syndrome as a psychiatric category. In practice, clinicians treating people who’ve been through hostage situations or prolonged abuse typically work within the framework of PTSD and related trauma responses, which are well-studied and have evidence-based treatment approaches.
Controversy and Gender Bias
The origin of the term itself is more fraught than most people realize. Nils Bejerot, the psychiatrist who coined it, never actually spoke with Kristin Enmark or the other hostages before labeling their behavior. Australian journalist Jess Hill, in her 2019 book on domestic violence, described Stockholm syndrome as “a dubious pathology with no diagnostic criteria” that is “riddled with misogyny and founded on a lie.” She pointed out that Bejerot’s diagnosis of Enmark came in direct response to Enmark’s public criticism of how he and the police handled the siege.
In other words, the very first person ever described as having Stockholm syndrome was labeled that way by a man she had publicly challenged, without him ever interviewing her. Critics argue the concept has historically been used to dismiss women’s rational assessments of dangerous situations by recasting their survival instincts as irrational emotional attachment.
Trauma Bonding in Everyday Life
Stockholm syndrome is most associated with dramatic hostage scenarios, but the same dynamics show up in domestic abuse, cults, human trafficking, and other situations involving prolonged control. The term “trauma bonding” is often used in these everyday contexts, and it describes a similar pattern: a person in an abusive relationship develops strong emotional ties to the abuser, often defending them to friends, family, or authorities.
The key ingredient is the same cycle. A perceived threat to safety, isolation from other perspectives, intermittent kindness mixed with abuse, and a sense of being unable to leave. The small kindnesses become psychologically enormous when they arrive against a backdrop of fear. A partner who is violent but occasionally gentle can create the same push-pull dynamic that Olsson created when he draped a jacket over a shivering hostage’s shoulders.
Recognizing this pattern in less extreme settings is arguably more useful than understanding the classic hostage version. People in abusive relationships often struggle to understand why they feel loyalty or love toward someone who harms them, and understanding the survival mechanism behind it can be a meaningful step in processing what happened.
Recovery and Treatment
Because Stockholm syndrome isn’t a formal diagnosis, treatment typically follows the same approaches used for PTSD and complex trauma. Therapy focuses on processing the traumatic experience, rebuilding a sense of safety, and gradually separating the survival responses that developed during captivity or abuse from the person’s current reality. The feelings of loyalty or affection toward an abuser don’t disappear the moment someone is physically free. Untangling those emotions takes time, and the process is easier when the person understands that their response was a normal, biological reaction to an abnormal situation rather than evidence of personal weakness or irrationality.