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Residual Type of Schizophrenia: Definition, Lesson & Quiz

Instructor: Sarah Lavoie

Sarah has taught Psychology at the college level and has a master's degree in Counseling Psychology.

Just like cancer and other diseases, schizophrenia is an illness with many sub-types. In this lesson you will learn about the Residual Type of Schizophrenia and reinforce your learning with a quiz.

We also recommend watching Phases of Schizophrenia: Prodromal, Active, and Residual and Genetic and Environmental Influences of Schizophrenia: Causes and Effects

What is Schizophrenia?

Schizophrenia is a serious mental illness that affects about 1% of the population. In psychiatry, schizophrenia is a type of psychotic disorder. A psychotic disorder is characterized by a loss of contact with reality. Schizophrenia is most often the disorder people are thinking of when they use the word 'insane.'

Symptoms of Schizophrenia

  • Hallucinations and Delusions: Hallucinations are experiences that are real in every way to the person experiencing them, but lack a genuine sensory stimulus. Delusions are another symptom often experienced by schizophrenics. Just as a hallucination is a false sensory experience, a delusion is a false belief. Both hallucinations and delusions are considered positive symptoms of schizophrenia.
  • Positive and Negative Symptoms: This doesn't mean 'good vs. bad.' In this instance, the word positive means that they are present. Just like you can be positive or negative for strep throat, a positive result shows strep throat is present. This is the same for schizophrenic symptoms. A negative symptom is when the patient is lacking something that is normally present in a healthy person, such as a normal range of emotions.

Residual Type of Schizophrenia

The Residual Type of Schizophrenia is a subtype of schizophrenia. Subtypes of schizophrenia can be diagnosed in a variety of situations. Schizophrenia can produce different symptoms at different periods in a person's life, and doctors will diagnose a sub-type of schizophrenia when certain symptoms or categories of symptoms are either more prominent or missing altogether.

Residual type of schizophrenia is most often diagnosed when a person is in a transitional stage between full schizophrenia and complete remission. Residual schizophrenia is well named since it may only be lingering symptoms left over from a full-blown schizophrenic episode.

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