What Causes Switching With Dissociative Identity Disorder? (2024)

Dissociative identity disorder (DID) is a mental health condition that was formerly known as multiple personality disorder or split personality disorder. This condition causes a person to have multiple distinct identities. It typically develops from significant childhood abuse, traumatic events, or overwhelming experiences.

This article discusses triggers that can cause "switching" between identities, or alters, in people with DID.

What Causes Switching With Dissociative Identity Disorder? (1)

Dissociative Identity Disorder Stats

Dissociative identity disorder is a rare condition, affecting about 2% of people worldwide.

What Is Switching?

People with dissociative identity disorder have at least two distinctly different identities, but some believe as many as 100 can emerge. Switching is the process of shifting from one identity state to another. This can occur slowly, with obvious signs, or very fast.

According to some research, switches can be consensual, forced or triggered. A consensual switch might be planned ahead of time. For example, an alter who is educated might plan to take over during a scheduled exam at school.

Forced switches are agreed upon by some of the alters, but not all of them. A stronger alter might be pushing out in front of a weaker alter in a particular situation.

Triggered switches are not intentional. Rather, they occur when a situation forces a particular alter to come forward. There are a variety of triggers that can lead to switching.

Outward Signs of Switching

A variety of physical signs can indicate that a person with dissociative identity disorder has switched from one alter to another. These can include:

  • Muscle twitching
  • Confusion
  • Slow, heavy blinking
  • Memory loss
  • Headache
  • Clearing the throat
  • Change in the pitch of their voice
  • Change in vocabulary
  • Different temperament
  • Different functional abilities or skills
  • Lack of eye contact
  • Change in handwriting
  • Appearing "spaced out"
  • Adjusting clothing
  • Change in posture

Causes of Triggered Switching

Triggered switches can be caused by many different things. In some cases, the trigger is not known.

Stress

Stress is a big trigger for switching. In fact, periods of heavy stress can lead to rapid cycling between alters, causing the person to display multiple identities within as little as a few minutes. This type of switching has been referred to by some as carousel-switching or rolledexing.

Memories and Strong Emotions

Memories can cause a person with dissociative identity disorder to switch from one alter to another. These memories can be either good or bad. An alter switch might occur while a person is looking at old pictures or other memorabilia.

Sudden changes in a person's emotions, whether positive or negative, can also trigger an alter switch.

Senses

Switches can be triggered by a person's senses. Smell, sound, taste, textures, and sights can all cause a particular alter to present itself. For example, a person who has a history of abuse might smell or see something that brings up past experiences.

The result is alter switching—whether the alter appears as a frightened child, or an aggressive, dominant alter who is going to stand up for the abused child.

Many movies will depict characters with DID as having a "bad alter"—someone sinister or violent. It is important to note that these characters are not representative of a strong majority of people with DID.

Other Causes of Switching

Drinking alcohol and using drugs can be a trigger for switching. Changing of the seasons or special events such as holidays or birthdays can also be a trigger.

Switching can be triggered by a particular situation that requires specific skills, such as public speaking. It can also occur when a person encounters another person who has a relationship with a particular alter.

When to Talk to Your Healthcare Provider

If you suspect that you or someone you know has dissociative identity disorder or is experiencing alter switching, talk to a healthcare provider, such as a mental health professional. DID is a serious condition that can significantly impact a person's daily life, but treatments are available.

Inward Signs of Switching

A person might not always be aware that they are switching between alters, but in many cases, there are some inward signs. These can include:

  • Time-lapse
  • Memory loss
  • Forgetting how to perform a skill
  • Auditory or visual disturbances
  • Having an "out of body" experience
  • Being in a trance-like state
  • Being out of touch with reality
  • Flashbacks

Signs and Symptoms of Dissociative Disorders

Summary

There are a variety of triggers that can cause switching between alters, or identities, in people with dissociative identity disorder. These can include stress, memories, strong emotions, senses, alcohol and substance use, special events, or specific situations. In some cases, the triggers are not known.

6 Sources

Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

  1. American Psychiatric Association. What are dissociative disorders?

  2. The Recovery Village Drug and Alcohol Rehab. Dissociative identity disorder facts and statistics.

  3. Cleveland Clinic. Dissociative identity disorder (multiple personality disorder).

  4. Dissociative Identity Disorder Research. Switching and passive influence.

  5. Loewenstein RJ. Dissociation debates: Everything you know is wrong.Dialogues Clin Neurosci. 2018;20(3):229-242. doi:10.31887/DCNS.2018.20.3/rloewenstein

  6. Dell. PF. A new model of dissociative identity disorder.Psychiatric Clinics of North America. 2006;29(1):1-26. Doi:10.1016/j.psc.2005.10.013

What Causes Switching With Dissociative Identity Disorder? (2)

By Aubrey Bailey, PT, DPT, CHT
Dr, Bailey is a Virginia-based physical therapist and professor of anatomy and physiology with over a decade of experience.

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What Causes Switching With Dissociative Identity Disorder? (2024)

FAQs

What causes switching in dissociative identity disorder? ›

There are a variety of triggers that can cause switching between alters, or identities, in people with dissociative identity disorder. These can include stress, memories, strong emotions, senses, alcohol and substance use, special events, or specific situations. In some cases, the triggers are not known.

What are the main causes of dissociative identity disorder? ›

You're at greatest risk of having a dissociative disorder if you've had long-term physical, sexual or emotional abuse during childhood. Other shocking, distressing or painful events also may cause dissociative disorders to arise.

Can alter switch whenever they want? ›

Purposefully Switching on Camera

A person with DID is unable to switch alters on command. While it is possible to influence/force certain alters to front through certain triggers, DID systems cannot switch in whatever alter they want just because they want to.

What generally causes a dissociative disorder to develop? ›

Most mental health professionals believe that the underlying cause of dissociative disorders is chronic trauma in childhood. Examples of trauma included repeated physical or sexual abuse, emotional abuse or neglect.

Can an alter take over permanently? ›

Nonetheless, much like common personas, they share far more with their host than they are distinct. As such, it is not meaningful to suggest that some alter took over, suppressed, or deleted their host.

How fast can alter switch? ›

As each "alter" or personality reveals itself and controls your behavior and thoughts, it's called "switching." Switching can take seconds, minutes, or days. You might seek treatment with hypnosis, where your different "alters" may be responsive to your therapist's requests.

What causes alters to form? ›

' Alters typically develop from dissociation caused by prolonged early childhood trauma, as evidence suggests (International Society for the Study of Trauma and Dissociation, 2011). The alters may have different names, genders, ages, roles, attitudes, preferences, and even memories.

What childhood trauma causes dissociative identity disorder? ›

Dissociative identity disorder—a type of dissociative disorder—most often develops during early childhood in kids who are experiencing long-term trauma. This typically involves emotional, physical, and/or sexual abuse; neglect; and highly unpredictable interactions with caregivers.

How to tell if someone is dissociating? ›

First, you need to know how to figure out if someone is dissociating. And while everyone's different, some common indications are "if their eyes glaze over, they seem 'checked out' or 'spacey,' their tone changes, they're quieter than usual, or they're staring off into space," explains Schwartz.

What can trigger a switch? ›

Some Known Triggers (that cause switching)
  • something someone says.
  • past perpetrator.
  • people who look like past perpetrator (someone that holds same kind of job as perpetrator same location or venue (similar) mannerism or laugh is similiar)
  • certain times of the year.
  • objects.
  • things.
  • colors/textures.
  • smells.

Do people with DID know they are switching? ›

Some people with DID are aware of their different identities, while others are not. There is a lot of disagreement between researchers over the notion of DID. We think of someone with DID as having different identities.

What does alter switching look like? ›

Often people will experience some kind of physical symptom, like headaches, just before or after switching occurs. Loosing track of time could be another indicator that a person switched. Obviously finding yourself in a place or situation in which you have no idea how you got there is a sign that you have switched.

What triggers dissociative identity disorder? ›

Removing yourself from a stressful or traumatic environment (like moving homes). Close relatives or your children reaching the age at which you experienced trauma. A recent traumatic or stressful experience (like a vehicle accident). An abuser passing away or experiencing a life-threatening illness.

What does shutdown dissociation look like? ›

Eye contact is broken, the conversation comes to an abrupt halt, and clients can look frightened, “spacey,” or emotionally shut down. Clients often report feeling disconnected from the environment as well as their body sensations and can no longer accurately gauge the passage of time.

What is the root of dissociative identity disorder? ›

Dissociative identity disorder is associated with overwhelming experiences, traumatic events and/or abuse that occurred in childhood. Dissociative identity disorder was previously referred to as multiple personality disorder.

What causes new alters to form? ›

The alternate personalities in DID are often referred to as 'Alters. ' Alters typically develop from dissociation caused by prolonged early childhood trauma, as evidence suggests (International Society for the Study of Trauma and Dissociation, 2011).

Do people with DID know when they switched? ›

Yes, it's possible that someone can have DID without knowing. While some people are aware of their identities, many people don't know when a new identity takes over. When a new identity steps in, you may not remember some events because another personality experienced them. This causes gaps in memory, called amnesia.

Do alters know they are alters? ›

Alters are created for the purpose of survival and coping with trauma. Each alter holds different memories and roles within the system - depending on what the system needs to cope or survive. While some alters are fully aware that they are alters, others (such as the host) may have completely no idea.

What does switching between alters look like? ›

External signs that a switch may have just occurred include the following: heavy blinking as if the individual is just waking up; mild muscle spasms or jerks; disorientation or visible confusion; checking the clock or one's watch; seeming not to remember anything that just happened; complaining of a mild or moderate ...

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