Chapter 16 terms Flashcards
Emotional dyscontrol syndrome
A behavior disorder that may be the result of temporal lobe disorders.
Epidemiology
the study of patterns of disease in a population.
Schizophrenia
Affects approx. 1% of the population. symptoms include dissociative thinking, auditory hallucinations, personalized delusions, and changes in affect.
Dissociative thinking
impaired logical thought
Positive symptoms
abnormal behaviors that are gained. i.e. hallucinations, delusions, excited motor behaviors
Negative symptoms
When certain functions that are lost. i.e. slow thought and speech, emotional and social withdrawal, blunted emotional expression.
hypofrontality hypothesis
a hypothesis that suggests that schizophrenia may be caused by underactivation of the frontal lobes.
Antipsychotics
drugs that work by blocking dopamine D2 receptors.
Dopamine hypothesis
A hypothesis that says schizophrenia results from excess synaptic dopamine or dopamine receptors.
Amphetamine psychosis
a delusional psychotic state caused by large doses of amphetamines.
Dyskinesia
distortion in voluntary movements often a long-term effect of antipsychotics
Tardive dyskinesia
characterized by
repetitive movements involving the face,
mouth, lips, and tongue.
Supersensitivity psychosis
If drug doses of antipsychotic drugs are lowered. this reflects upregulation of receptors during treatment.
Atypical antipsychotics
Successfully treats schizophrenia
• Does not support the dopamine
hypothesis
Blocks some D2 and some serotonin receptors
Phencyclidine (PCP)
a psychotomimetic, producing positive and negative symptoms of schizophrenia. Acts as a NMDA receptor antagonist and prevents glutamate from acting normally.
