If a person’s story changes in the weeks following an alleged sexual assault, are they not telling the truth?

It’s a criticism I’ve seen on social media and heard in the public conversation surrounding the by a plaintiff known as Jane Doe, a former student at Cornell University, accusing seven male students of rape.

Initially, Doe discussed events with her friend a friend but . It wasn’t until weeks later, when her experience was labeled as a gang rape by others, that .

Survivors are often questioned about . When societal expectations about how rape survivors should respond do not align with the victim’s experience, it’s easy to assume that the victim is lying and the assailant is innocent.

Research indicates 60% to 70% of female rape survivors . That’s especially true for college students. Instead, rape survivors often describe their experience in more general terms, referring to it as That’s both because of how sexual assault affects a survivor’s mind, brain and body and because of how society thinks about rape.

In my experience doing crisis intervention work with rape and sexual assault victims, it is very common for survivors to prefer to continue as if the assault never happened and to be driven by a strong desire to return to normalcy. While this seems counterintuitive, understanding the biological and psychological survival processes that sexual assault can activate may help explain why this response is perfectly logical.

The sexual assault allegations against the so-called Cornell 7 have spurred national outrage.

Trauma’s immediate impact

Immediately following a rape, survivors – whether they characterize their experience as rape or not – often experience myriad symptoms broadly referred to as . These symptoms include and feelings of fear and humiliation. These symptoms often lead to problems with sleep, headaches, muscle tension and fatigue.

Psychologists generally diagnose symptoms consistent with rape trauma syndrome as . Acute stress disorder reflects the unique psychological reactions immediately following trauma, whereas the longer-term effects are characterized as post-traumatic stress disorder, or PTSD.

People with acute stress disorder experience at least nine symptoms across several categories, including avoidance of trauma reminders, persistent negative mood and dissociation – defined as a disconnection between thoughts, feelings and bodily sensations. Other symptoms include intrusive experiences like nightmares or flashbacks, feeling like they are reexperiencing the trauma, constantly being on high alert and having overly intense emotional reactions to reminders of the traumatic event.

The brain on trauma

During acute stress, the brain shifts into survival mode.

Two of the main bodily systems activated during this period are the and the . The limbic system controls emotions, memory and behavior. The hypothalamic-pituitary-adrenal axis controls how the body responds to stress by regulating hormones like cortisol.

These systems mobilize the body’s key survival responses – .

When the limbic system and hypothalamic-pituitary-adrenal axis , the internal commotion that ensues takes over the brain’s ability to control thinking, planning and decision-making. This effectively prevents the brain from making accurate sense of what happened and from coping with the trauma in a healthy way.

Trauma kicks the brain into survival mode and mobilizes the body’s survival responses.

Self-blame and denial are protective

For rape survivors, a common outcome of this neurobiological storm is – a tendency to hold themselves responsible for the events that led to the trauma. Generally, people believe they live in a world that feels safe and predictable, and they tend to adhere to the , which posits that good things happen to good people. To preserve the illusion of control, safety and predictability, survivors blame themselves in an effort to to restore order to a world that has been incredibly shaken by trauma.

Rape survivors often experience – the belief that they should have been able to predict or prevent an assault. This belief, which further reinforces self-blame, is fortified by a culture in which rape prevention programs tend to , leading women to believe they alone are responsible for and can prevent rape.

Then there’s that can take the form of avoidance of or dissociation from the trauma. Because the reality of what has happened is overwhelming to the brain and psyche, denying or ignoring it provides a defense from the flood of emotion that follows trauma and helps reestablish a sense of stability.

Common – for example, that rape is mainly committed by strangers in a novel situation, not by acquaintances during everyday experiences – reinforce these feelings. In fact, statistics indicate that 80% to 90% of women are .

Judging a changing story

A person assessing the reactions of a rape and trauma survivor generally does so in a calm and collected frame of mind. Yet the actions they are judging were made under extreme duress – under mental and physical hurricane conditions, you could say.

For a survivor of rape, an inability to clearly name the assault for what it was is a common outcome of the biological and psychological factors at play during acute stress. This denial functions to preserve their identity and sanity during acute stress, restore order to their world and help them make rational sense of what has happened to them.

Breaking through these self-preservation mechanisms often takes time – time that observers too often misinterpret as a false accounting of what actually happened.

Original article