Schizophrenia
Schizophrenia
• About 1 in every 100
people are diagnosed
with schizophrenia.
Symptoms of
Schizophrenia:
1. Disorganized thinking.
2. Disturbed perceptions.
3. Inappropriate emotions
and actions.
Disorganized Thinking
• The thinking of a person
with schizophrenia is
fragmented and bizarre;
also distorted with false
beliefs.
• Disorganized thinking
comes from a breakdown
in selective attention they cannot filter out
information.
• Often causes . . .
Delusions (false beliefs)
• Delusions of
Persecution
• Delusions of
Grandeur
Disturbed Perceptions
• Hallucinationssensory experiences
without sensory
stimulation (usually
auditory like voices in
their head).
Inappropriate Emotions and Actions
•
•
•
•
Laugh at inappropriate times.
Flat Effect - (zombielike state).
Senseless, compulsive acts.
Catatonia - motionless for hours.
Positive vs. Negative Symptoms
Positive Symptoms
• Presence of
inappropriate
symptoms
Negative Symptoms
• Absence of
appropriate ones.
Types of Schizophrenia
Disorganized Schizophrenia
• Disorganized speech or
behavior, or flat or
inappropriate emotion.
• Clang associations:
• "Imagine the worst
systematic, sympathetic
quite pathetic, apologetic,
paramedic. Your heart is
prosthetic.“
• Word salad:
• “It’s all over for a squab true tray
and there ain’t no music, there ain’t
no nothing besides my mother and
father who stand alone upon the
Island of Capri where there is no
ice.”
Paranoid Schizophrenia
• Preoccupation with
delusions or hallucinations
of persecution.
• Always looking over your
shoulder like somebody is
out to get you!
•
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Catatonic Schizophrenia
• Flat effect.
• Waxy Flexibility.
• Immobility and/or
parrotlike repeating
of another’s speech
and movements .
Undifferentiated Schizophrenia
• Many varied symptoms.
• "Undifferentiated
schizophrenia" is used
as a label for cases of
schizophrenia that
don't match any of the
established types of
schizophrenia.
Residual Schizophrenia
• This subtype is diagnosed
when the patient no longer
displays prominent positive
symptoms (i.e. hallucinations).
• The person does show some
negative symptoms like
speaking little or being
apathetic.
Causes of Schizophrenia
• No known single cause.
• Possible causes:
• Excess of dopamine
receptors.
• Low activity in frontal
lobes.
Causes of Schizophrenia
• Possible causes:
• Enlarged ventricles
in the brain.
• Shrinkage of brain
tissue in limbic
system.
• Prenatal viruses.