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Mental health symptoms of Parkinson's

As well as affecting movement, Parkinson's often affects the way people think and feel. About two-thirds of people with Parkinson's experience mental health problems at some point during the course of their condition.

It's normal to feel anxious and depressed when you are first diagnosed. In time this may subside.

Wira MacIntyre, Information and Support Worker

People often don't realise that these mental health symptoms could be related to Parkinson's.

This means the symptoms can remain untreated, despite the fact that they can have a bigger impact on people's lives than the movement-related problems.

Mild memory problems

In the earlier stages of Parkinson's, many people complain of certain difficulties in thinking and memory that can interfere with day-to-day life.

This can be experienced as a slowing down of thinking, much in the same way as they might experience slowing down of movement.

While some people do complain of forgetfulness, memory problems are not usually a significant complaint in the early stages of Parkinson's.

It is more likely that other factors, such as stress, depression and poor general health will have an impact on the ability to think, recall and process information efficiently.

Read more on memory problems and mild cognitive impairment and learn some coping strategies in our Mild memory problems information sheet.

Dementia

A diagnosis of Parkinson's dementia is given if the symptoms of dementia appear after those of Parkinson's.

Symptoms of dementia can include:

  • slowness of thinking
  • poor recall
  • executive dysfunction (poor planning, multi-tasking)
  • impaired concentration and attention
  • less talking

Memory problems, such as forgetfulness and repetitive questioning, can also be experienced. However, some people can have dementia with hardly any memory problems.

In general, people with Parkinson's dementia find they have problems with judgment and problem solving. This means it is difficult for them to make complex decisions, such as financial decisions and choice of medical treatment.

Activities of daily living, such as dressing, hygiene, cooking and cleaning may also become increasingly difficult. Extra help from carers may be necessary.

Read more about the impact of dementia and its relation to Parkinson's in our Parkinson's dementia information sheet.

Depression

Depression is more than feeling sad or unhappy now and then. A diagnosis of depression will be made if someone has been in a low mood for a long time - usually at least 2 weeks.

When someone is depressed they may experience a loss of pleasure or interest in their usual activities.

A depressed person might also experience feelings of hopelessness, helplessness, low self-esteem and inappropriate guilt.

Other symptoms can include problems with thinking, sleep, appetite, energy and sexual drive. Anxiety, panic attacks and feelings of being 'wound up' often accompany depression.

Sleep changes include excessive sleeping and not wanting to get out of bed, or having difficulty falling asleep, accompanied by waking up in the early morning.

In some cases, depression may be particularly severe and may be accompanied by suicidal ideas or abnormal changes in perceptions (hallucinations) and beliefs (delusions). In such cases, it is called 'psychotic depression' and may require hospitalisation.

Treatment can include medication or 'talking therapies', such as cognitive behavioral therapy.

It can be very difficult for someone to recognise depression in themselves. Therefore, if you think the person you care for is depressed, it's important to let their healthcare professionals know.

Read more in our Depression and Parkinson's information sheet.

Anxiety

Anxiety can be an entirely normal feeling, ranging from worry and stress to the bodily symptoms, including sweating, pounding of the heart, shortness of breath and unpleasant feelings in the stomach.

Some people with Parkinson's have anxiety related to the 'on/off' state of their motor symptoms. When 'off' and less able to move well, they may develop significant anxiety symptoms and, at times, may even have panic attacks.

Anxious personIf anxiety is related to movement problems, then talking to a doctor about altering anti-Parkinson's medication can help.

For anxiety symptoms that do not respond to changes in anti-Parkinson's medication, a trial of either talk therapy, such as cognitive behavioural therapy, or medications may be helpful.

For those who experience mild anxiety every now and then, avoiding stimulants, such as caffeine, alcohol and cigarettes, can help.

Some people find relaxation tapes, yoga, massage, acupuncture and complementary therapies beneficial. Read more in our Complementary therapies and Parkinson's booklet.

Find out more about coping with anxiety in our Anxiety and Parkinson's information sheet.

Hallucinations

When a person hallucinates they may see, hear, feel, smell or taste something that, in reality, does not exist.

Hallucinations are rare, but some people with Parkinson's may experience visual hallucinations of quite complex scenes.

Typically, these involve seeing small animals, insects or other people in the room. The length of the hallucination varies and is usually visual. Auditory hallucinations are rarer for people with Parkinson's.

Sometimes, when people with Parkinson's hallucinate, they experience a feeling that an animal or object is present, just next to them, but they do not actually see it.

Hallucinations are caused partly by Parkinson's itself and partly by the medication that is prescribed to treat it. Dopamine agonists and anticholinergic drugs are more likely to cause hallucinations.

If you are experiencing hallucinations, it is important that you visit your doctor so that the cause can be identified and any appropriate treatment given.

Our Hallucinations and delusions in Parkinson's information sheet provides more detail on the causes, treatments and kinds of hallucinations that people with Parkinson's may experience.

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