A mental disorder characterized by three categories of symptoms: positive, negative, and psychomotor
Symptoms of schizophrenia
Positive: excesses of thought, emotion, and behavior
Negative: deficits of thought, emotion, and behavior
Psychomotor: unusual movements or gestures
Delusions
False beliefs despite evidence to the contrary
Types of delusions
Persecution: believes a person or group intends to harm them
Reference: believes everyday events have a huge bearing on them
Erotomanic: believes someone is secretly in love with them
Somatic: believes their internal or external bodily functions are abnormal
Grandeur: has an overinflated sense of worth, power, knowledge, identity, or relationship with someone famous
Control: believes another person, group, or external force controls their thoughts, feelings, impulses, or behaviors
Formal thought disorder
Disturbance in the production and organization of thoughts
Examples of formal thought disorders
Loose associations: can't stay on track of a thought or conversation
Neologism: making up words
Perseveration: repetition of words
Clang: rhyming words
Hallucination
False sensory perception without external stimuli
Inappropriate affect
Displays of emotion that are unsuited or inappropriate for the situation
Types of catatonia
Catatonic stupor: inability to move, speak, or respond to a stimuli
Catatonic rigidity: stiff and inflexible movements (muscle cramping)
Catatonic excitement: excessive motor activity, restlessness, or agitation
Catatonic posturing: unusual and fixed body positions
Phases of schizophrenia
Prodromal: initial phase, symptoms begin to emerge slowly
Active: diagnosis usually occurs in this stage, experience more impairing symptoms
Residual: severeness of symptoms decrease, characterized by a lower level of functioning than pre-illness
Type I schizophrenia
Dominated by positive symptoms, and is more treatable with a higher prevalence
Type II schizophrenia
Dominated by negative symptoms
Biological factors associated with schizophrenia
Dopamine neurotransmitters
Viral infection during pregnancy could be passed onto the fetus and impact brain development, increasing the chance for the child to develop schizophrenia
The "schizophrenogenic mother" theory, which suggests that cold, domineering, and uninterested mothers cause schizophrenia, is not empirically supported
Cognitive explanation of schizophrenia
Operant conditioning: attention to social cues was not reinforced during childhood, so focus shifts to irrelevant cues
Misinterpreting unusual events
Black and Hispanic Americans are more likely to be diagnosed with schizophrenia than non-Hispanic white Americans, and there is a 4x higher prevalence among immigrant populations
Diathesis-stress relationship in schizophrenia
Higher genetic prevalence = less stressors needed
No genetic prevalence = no matter how many stressors, schizophrenia will not develop
There is usually more negative expressed emotion in schizophrenia cases within the family
Milieu therapy
Trying to provide a therapeutic environment for people to heal and engage in typical social events
Token economy program
Reinforce positive activities by giving tokens, which can be traded in for something
Tardive dyskinesia
Involuntary/repetitive movements of the body with first generation antipsychotics
First generation antipsychotics
Target only dopamine receptors, developed first
Second generation antipsychotics
Target dopamine, serotonin, and other neurotransmitters, developed more recently
Cognitive remediation
Focuses on cognitive impairments, namely attention, planning, and memory; use the computer to complete information processing tasks; helps with social awareness and planning, social relationships, and daily living
Hallucination reinterpretation and acceptance
Challenges inaccurate ideas about hallucinations, reattribute and accurately interpret hallucinations; helps to feel in control and improve delusional ideas
Community approach
Patients receive mental health services in communities rather than institutions, previously focused on institutionalization but has moved to more outpatient care
Assertive community treatment
Trying to implement care earlier
Primary issues with communitycare
Not enough case workers
Not enough funding
Personality
Unique expressed characteristics that influence our behaviors, emotions, thoughts, and interactions
Personality disorder
Enduring rigid patterns of inner experience and outward behavior that repeatedly impairs a person's sense of self, emotional experiences, goals, capacity for empathy, and/or capacity for intimacy
Deep distrust and suspiciousness, isolated, cold, and distant, critical of others but sensitive to feedback, inaccurate and inappropriate beliefs
Schizoid personality disorder
Avoidance of social relationships due to preference of being alone, limited emotional expression and often viewed as cold, humorless, or dull, focus mainly on themselves and are unaffected by others' opinions
Schizotypal personality disorder
Discomfort in close relationships, isolate themselves due to anxiety but often lonely, odd patterns of thinking, behavioral eccentricities, inappropriate, flat, or humorless emotions, difficulty focusing attention
Schizotypal personality disorder differs from schizophrenia in that it does not involve psychosis
Disorders within the "dramatic" personality disorders