Schizophrenia : Positive and Negative Symptoms

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Psychology Flashcards on Schizophrenia : Positive and Negative Symptoms, created by Aisha Khan on 26/12/2016.
Aisha Khan
Flashcards by Aisha Khan, updated more than 1 year ago
Aisha Khan
Created by Aisha Khan over 7 years ago
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Question Answer
what is Schizophrenia? Schizophrenia is a Psychotic disorder, in which the individual has lost contact with reality.
Criteria A symptoms: The criteria A symptoms include, (2/more) Delusions Hallucinations Disorganized speech catatonic behavior
criteria B : Social/Occupational Dysfunction? The criteria B symptoms include, one or more major areas of life such as work, interpersonal relationships, self care are significantly below the level prior to onset of symptoms.
Criteria C : Duration continuous signs of the disturbance persist for at least 6 months, including criteria A symptoms for a month
Positive symptoms of Schizophrenia The positive symptoms refer to the presence, excess and distortion to a persons normal functions. These include, Hallucinations and Delusions
Negative symptoms of Schizophrenia The negative symptoms refer to the loss or impairment to the individuals normal functions. These include, Speech poverty (Alogia) and Avolition
Positive Symptoms: Hallucinations Hallucinations are sensory experiences which do not correspond with reality. the person may hear, feel or smell things which are not present and most Hallucinations are Auditory (person hearing voices).
Positive Symptom: Delusions Delusions are beliefs which do not correspond with reality. schizophrenics have delusional beliefs about their own abilities thinking they could control others minds.
Negative Symptoms: Alogia (Speech Poverty) Speech Poverty- this is the loss of fluency of speech and SZ struggles to produce speech at a normal speed, speak less complex sentences and have difficulty on verbal fluency tasks.
Negative Symptoms: Avolition Avolition is reduction of motivation and an inability to initiate or persist with goal orientated behaviors. LACK OF ENERGY!
Issues With Diagnosis- Reliability Reliability- this means that the diagnosis of SZ is consistent and replicable. this means that the same clinician would make the same diagnosis at different points in time (test retest reliability), or that a different clinician would make the same diagnosis (inter- rater reliability).
Issues with Diagnosis- Validity Validity refers to whether or not clinicians diagnosis are actually correct, and whether the diagnostic criteria are measuring what they claim to measure.
Key Study- Rosenhan (1973) one of the most
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