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SCHIZOPHRENIA
 
    Schizophrenia is a long-term mental health condition that causes a range of different psychological symptoms, including:
  • hallucinations - hearing or seeing things that do not exist
  • delusions - unusual beliefs not based on reality which often contradict the evidence
  • muddled thoughts based on the hallucinations or delusions
  • changes in behaviour
   
  Doctors often describe schizophrenia as a psychotic illness. This means sometimes a person may not be able to distinguish their own thoughts and ideas from reality.

Changes in thinking and behaviour are the most obvious signs of schizophrenia, but people can experience symptoms in different ways.
 
 
The symptoms of schizophrenia are usually classified into one of two categories: positive or negative.
  • Positive symptoms represent a change in behaviour or thoughts, such as hallucinations or delusions.
  • Negative symptoms represent a withdrawal or lack of function which you would usually expect to see in a healthy person. For example, people with schizophrenia often appear emotionless, flat and apathetic.
The condition may develop slowly. The first signs of schizophrenia, such as becoming socially withdrawn and unresponsive or experiencing changes in sleeping patterns, can be hard to identify. This is because the first symptoms often develop during adolescence and changes can be mistaken for an adolescent 'phase'.
 
 
Positive symptoms of schizophrenia
Hallucinations
A hallucination is when a person experiences a sensation but there is nothing or nobody there to account for it. A hallucination can involve any of the senses, but the most common is hearing voices. Hallucinations are very real to the person experiencing them, even though people around them cannot hear the voices or experience the sensations. Research using brain-scanning equipment shows changes in the speech area of the brain in people with schizophrenia when they hear voices. These studies show the experience of hearing voices as a real one, as if the brain mistakes thoughts for real voices.

Some people describe the voices they hear as friendly and pleasant, but more often they are rude, critical, abusive or annoying. The voices might describe activities taking place, discuss the hearer’s thoughts and behaviour, give instructions or talk directly to the person. Voices may come from different places or one place in particular, such as the television.
 
 
Delusions
A delusion is a belief held with complete conviction, even though it is based on a mistaken, strange or unrealistic view. It may affect the way people behave. Delusions can begin suddenly or may develop over weeks or months.

Some people develop a delusional idea to explain a hallucination they are having. For example, if they have heard voices describing their actions, they may have a delusion that someone is monitoring their actions. Someone experiencing a paranoid delusion may believe they are being harassed or persecuted. They may believe they are being chased, followed, watched, plotted against or poisoned, often by a family member or friend.

Some people who experience delusions find different meanings in everyday events or occurrences. They may believe people on TV or in newspaper articles are communicating messages to them alone, or that there are hidden messages in the colours of cars passing in the street.
 
 
Confused thoughts (thought disorder)
People experiencing psychosis often have trouble keeping track of their thoughts and conversations. Some people find it hard to concentrate and will drift from one idea to another. They may have trouble reading newspaper articles or watching a TV programme. People sometimes describe their thoughts as ‘misty’ or ‘hazy’ when this is happening to them. Thoughts and speech may become jumbled or confused, making conversation difficult and hard for other people to understand.
 
 
Changes in behaviour and thoughts
Behaviour may become more disorganised and unpredictable, and appearance or dress may seem unusual to others. People with schizophrenia may behave inappropriately or become extremely agitated and shout or swear for no reason.

Some people describe their thoughts as being controlled by someone else, their thoughts are not their own, or that thoughts have been planted in their mind by someone else. Another recognised feeling is that thoughts are disappearing, as though someone is removing them from their mind. Some people feel their body is being taken over and someone else is directing their movements and actions.
 
 
Negative symptoms of schizophrenia
The negative symptoms of schizophrenia can often appear several years before somebody experiences their first acute schizophrenic episode. These initial negative symptoms are often referred to as the prodromal period of schizophrenia.

Symptoms during the prodromal period usually appear gradually and slowly get worse. They include becoming more socially withdrawn and experiencing an increasing lack of care about your appearance and personal hygiene. It can be difficult to tell whether the symptoms are part of the development of schizophrenia or caused by something else. Negative symptoms experienced by people living with schizophrenia include:
  • losing interest and motivation in life and activities, including relationships and sex 
  • lack of concentration, not wanting to leave the house and changes in sleeping patterns 
  • being less likely to initiate conversations and feeling uncomfortable with people, or feeling there is nothing to say
The negative symptoms of schizophrenia can often lead to relationship problems with friends and family because they can sometimes be mistaken for deliberate laziness or rudeness.
 
LINK : http://www.nhs.uk/Conditions/Schizophrenia/Pages/Symptoms.aspx
 
 
     
 
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