Exam 2 Flashcards
(167 cards)
Epidemiology of Psychotic Disorders
About 1% of the population
Same percent is found internationally and across cultures
75% of all mental health expenditures
High Rates of Suicides 9-13% successful, 50% attempt
Life Span is 10 years less than average
Course of Psychotic Disorders
Onset in adolescence to early adulthood
Premorbid predictive factors: deficiencies in attention, poor coordination, lack of emotional warmth, high ratio of angry, sad, and fearful expressions to joyful ones.
Phases of Psychotic Disorders
Prodromal-before any active illness
Active- florid psychosis
Residual- Impairment between active episodes
Never go back to prodromal after first episode
Pathogenesis of Psychotic Disorders
Genetics, Perinatal insult, cognitive deficits, biology (Neuroanatomy, neurotransmission)
Cognitive Deficits of Psychotic Disorders
Consistent with frontal and temporal lobe dysfunction, more predictive of outcome then symptom severity, independent of acute phase symptoms (stable), May present premorbidly, more pronounced in higher cognitive function
Mild Cognitive Impairment
15th Percentile
Perceptual Skills
Confrontation naming
Moderate Cognitive Impairment
5th Percentile
Delayed recall and immediate memory
Distracted with irrelevant information
Visual Motor Coordination
Severe Cognitive Impairment
>1st Percentile
Serial Learning
Executive function
Verbal Fluency
Working Memory
CATIE Study
Clinical Antipsychotic Trials in Intervention Effectiveness
Cognitive Impairment: Present in almost all persons with schizophrenia, associated with poor functional outcomes, predicts poor work performance, more predictive of dysfunction than positive or negative symptoms
Dopaminergic Tracks in the Brain
Mesocortical
Negative Symptoms
Cognitive Deficits
Attention Deficits
Dopaminergic Tracks in the Brain
Mesolimbic
Positive Symptoms (Hallucinations, delusions, disorganized speech, and bizarre behavior)
Dopaminergic Tracks in the Brain
Turberoinfundibular
Endocrine function
Temp Control
Sexual Arousal
Circadian Rhythms
Dopaminergic Tracks in the Brain
Nigrostriatal
EPS
Tardive Dyskinesia
NMS
Serotonin and Schizophrenia
Has modulating effect on dopamine
SGAs are combination serotonin/dopamine blocking agents
Glutamate and schizophrenia
Is the major excitatory neurotransmitter in the brain
Of the eight genes for schizophrenia, all go through the glutamate pathways
May be potential pathway to improve cognitive function
DSM Criteria for Schizophrenia
Two of the following: Delusions, Hallucinations, Disorganized speech, grossly disorganized behavior, negative symptoms
Significant decrease in functioning over significant period of time
Six months continuous disturbance and at least one acute episode
Not a mood disorder or caused by drugs
not autism
Prevalence of Psychotic Symptoms
Delusions 90%
Auditory Hallucinations 50%
Visual Hallucinations 15%
Tactile Hallucinations 5%
Level One insight about hallucinations
Hallucinations of stopped and person has full understanding of their pathological nature
Level Two Insight about Hallucinations
Hallucinations have stopped, but the person believes they were real
Level Three Insight about Hallucinations
Patient understands a contradiction between reality and hallucinations, but is unable to resolve the contradiction and may choose to keep quiet
Level Four Insight about Hallucinations
Patient talks about hallucinations as real, but does not act on them
Level Five Insight about Hallucinations
Patient accepts the hallucinations as “real” and acts accordingly
Formal Thought Disorders
Tangentiality Claging Echolalia Self-Reference Neologisms Word Approximations Derailment Incoherence Poverty of Content
Positive Symptoms of Psychotic Disorders
Hallucinations Delusions Thought Disorder Ideas of Reference Agitation Violance