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Parkinson's Can Affect More Than Movement. Here's What to Know.

Hallucinations in Parkinson's mean seeing, hearing, feeling, or smelling things that aren't real, which can be common symptoms of Parkinson’s. SASPAP is a short, validated screener that helps you identify these symptoms so you can talk about them with your healthcare provider.[1]

Key takeaways

  • Hallucinations and delusions are a recognized non-motor symptom of Parkinson's, and they are often manageable.[1][4]
  • Many people don't mention them out of embarrassment or because they don't realize the symptoms are connected to Parkinson's.[1][3]
  • The SASPAP screener asks just four questions, and StrivePD emails you a copy of your results and responses.[1]
  • It's a screening tool, not a diagnosis. Your care team interprets the results.

Understanding the SASPAP screener: 

Take the SASPAP screener for a chance to win $300 or an Apple Watch to use with StrivePD. Entry takes about a minute. 

What are hallucinations in Parkinson's disease?

A hallucination is when your brain perceives something that isn't actually there. In Parkinson's, they are most often visual, but any sense can be involved:[5][6]

  • Seeing people, animals, or objects that aren't there
  • Hearing voices, music, or footsteps with no source
  • Feeling a touch or something crawling on your skin
  • Smelling odors others can't detect
  • Tasting something with nothing in your mouth (less common)

Some people know at the moment that what they're experiencing isn't real. Others find it harder to tell.

Hallucinations, illusions, sense of presence, and delusions: what's the difference?

Doctors group these together as Parkinson's-associated psychosis. The SASPAP covers four types:[1][4]

  1. Illusions: misinterpreting something real, like mistaking a coat on a chair for a person.
  2. Sense of presence: feeling someone is nearby or behind you when no one is there.
  3. Hallucinations: perceiving something that isn't there at all.
  4. Delusions: strongly held false beliefs, such as feeling someone is stealing from you or being unfaithful.

Illusions and sense of presence are sometimes called minor hallucinations. They may not be a problem on their own, but they often progress to more serious hallucinations, so they are worth recognizing.[1][7]

How common is this in Parkinson's?

More common than most people realize. Psychosis eventually affects around 50% of people with Parkinson's.[1][2] If you're experiencing this, you are far from alone.

Why don't people talk about it?

These symptoms often aren't volunteered during clinic visits because of embarrassment or lack of insight.[1][3] People worry about being judged, or about what it might mean. Care partners sometimes hold back too. A short, structured screener makes the first step easier, because you don't have to find the words yourself.

What is SASPAP?

SASPAP stands for the Self-Administered Screening Questionnaire for Parkinson's Disease-Associated Psychosis. It was developed by a committee that included neurologists, a psychiatrist, a person living with Parkinson's, and a patient advocate, and was published in the journal Movement Disorders.[1] StrivePD offers it under license from the International Parkinson and Movement Disorder Society (MDS).

  • 4 questions, covering illusions, sense of presence, hallucinations, and delusions
  • Self-administered, so no appointment is needed to complete it
  • Results by email: you receive your results, and a copy of your responses, in your inbox
  • A conversation starter, not a diagnosis

Take the SASPAP screener 

How accurate is it?

In a study of 250 people with Parkinson's, the SASPAP had a sensitivity of 87.8% and a specificity of 92.3% compared with expert assessment.[1] What does this mean? It was good at catching people who had symptoms and good at not flagging those who didn't. The researchers concluded it can be self-completed at the start of a visit.[1]

What do my results mean?

If your screen is negative: Your responses suggest you are likely not experiencing Parkinson's-associated hallucinations or delusions right now. That's reassuring, but Parkinson's changes over time. Keep monitoring your symptoms, tell your healthcare provider about any changes, and plan to repeat the screener in 3 to 6 months. StrivePD will remind you.

If your screen is positive: Your responses suggest symptoms that may be consistent with Parkinson's-associated hallucinations and/or delusions. Here's what to keep in mind:

  • This is not a diagnosis. Your care team knows your full history and can help interpret the results.
  • These symptoms may be treatable and may be related to medications or other manageable conditions.
  • Do not stop or change your medications without talking to your healthcare provider.
  • Contact your provider if symptoms appear suddenly or get worse.
  • Share your results at your next appointment. Your emailed copy makes this easy.

Tips for talking to your doctor

  1. Bring your results. Print or forward the email.
  2. Be specific. Note what you experienced, when, and how often.
  3. Bring your care partner. They may have noticed things you haven't.
  4. Don't wait for your next routine visit if symptoms are new, sudden, or worsening.

If you ever feel unsafe, or worry you might harm yourself or someone else, seek urgent medical help.

Frequently asked questions

What does SASPAP stand for?
Self-Administered Screening Questionnaire for Parkinson's Disease-Associated Psychosis.[1]

How many questions are in the SASPAP?
Four, one for each of illusions, sense of presence, hallucinations, and delusions.[1]

Is the SASPAP a diagnosis?
No. It's a screening tool that helps identify symptoms to discuss with your healthcare provider.

What should I do if my result is positive?
Share the results with your care team, keep taking your medications as prescribed, and contact your provider promptly if symptoms are sudden or worsening.

What if my result is negative?
Keep monitoring your symptoms and report any changes. Retake the screener in 3 to 6 months.

Does having hallucinations mean my Parkinson's is progressing?
Not necessarily. Medications, sleep problems, infections, and other factors can contribute. Your provider can help sort out the cause.

Can a care partner complete it?
Yes, in the research, patients and caregivers both completed the questionnaire, and comparing their separate responses showed substantial agreement.[1][8] An individual’s care taker who knows one’s symptoms can absolutely complete the form on the behalf of their loved one.  

Additional resources

Take the next step

Take the SASPAP screener

This article is for educational purposes only and isn't medical advice. Talk with your healthcare provider about any symptoms or medication questions.

The SASPAP is © 2023 International Parkinson and Movement Disorder Society, used under license.

References

  1. Koneru V, et al. The Self-Administered Screening Questionnaire for Parkinson's Disease-Associated Psychosis (SASPAP). Movement Disorders. 2023. doi:10.1002/mds.29627. https://pubmed.ncbi.nlm.nih.gov/37937768/
  2. Fernandez HH, et al. Scales to assess psychosis in Parkinson's disease: critique and recommendations (Movement Disorder Society Task Force report). Movement Disorders. 2008;23(4).
  3. Chaudhuri KR, Prieto-Jurcynska C, Naidu Y, et al. The nondeclaration of nonmotor symptoms of Parkinson's disease to health care professionals: an international study using the nonmotor symptoms questionnaire. Movement Disorders. 2010;25(6):704-709.
  4. Ravina B, Marder K, Fernandez HH, et al. Diagnostic criteria for psychosis in Parkinson's disease: report of an NINDS, NIMH work group. Movement Disorders. 2007;22(8):1061-1068. doi:10.1002/mds.21382
  5. Fénelon G, Mahieux F, Huon R, Ziégler M. Hallucinations in Parkinson's disease: prevalence, phenomenology and risk factors. Brain. 2000;123(4):733-745. doi:10.1093/brain/123.4.733
  6. Fytche DH, Creese B, Politis M, et al. The psychosis spectrum in Parkinson disease. Nature Reviews Neurology. 2017;13:81-95. doi:10.1038/nrneurol.2016.200
  7. Goetz CG, Fan W, Leurgans S, Bernard B, Stebbins GT. The malignant course of "benign hallucinations" in Parkinson disease. Archives of Neurology. 2006;63(5):713. doi:10.1001/archneur.63.5.713
  8. NeurologyLive. Short questionnaire accurate in identifying Parkinson disease-associated psychosis. https://www.neurologylive.com/view/short-questionnaire-accurate-identifying-pd-associated-psychosis

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