Psychological Disorders Flashcards
Schizophrenia
perceptual, emotional and intellectual deficits
Loss of contact with reality and inability to function
caused by frontal lobe damage
Psychosis
severe disturbances of reality, orientation, and thinking
Acute schizophrenia
Symptoms develop suddenly and respond well to treatment
Chronic schizophrenia
Symptoms develop gradually and its harder to treat
Type 1 Schizophrenia
The presence or exaggeration of behaviors
Hallucinations or Delusions
Type 2 Schizophrenia
Absence of normal behaviors
Lack of motivation, attention, speech, and pleasure
Resistant to antidopamine drugs
Involves greater cell loss
Vulnerability Model
Suggest genetic predispositions to schizophrenia
Dopamine Hypothesis
Schizophrenia involves excess dopamine activity in the brain
Glutamate theory
Schizophrenia is caused by understimulation of glutamate receptors
Brain anomalies of schizophrenia
Reduced gray matter and limbic area volume
Synchrony
Hypofrontality hypothesis
suggests schizophrenia is underactivation of frontal lobes
Winter birth effect
Schizophrenia is more prevalent in babies born in the winter and spring than those born in summer or fall
Depression
Intense feeling of sadness
Major Depression
lasts for weeks to months at a time
Unipolar Depression
Depression appears alone
Bipolar disorder
Depression occurs with periods of mania
Mania
excess energy, decreased need for sleep, and increased sex drive
Monoamine Hypothesis
Depression involves reduced activity at norepinephrine and serotonin synapses
Monoamine oxidase inhibitors
Block enzymatic destruction of neurotransmitters
Tricyclic antidepressants
Block reuptake
Atypical antidepressants
Target a specific neurotransmitter
Electroconvulsive Therapy
Reduces depression by inducing a seizure
Increases synchrony
Short lived
Circadian Rhythm
Daily biological rhythm
What can relieve depression?
Readjusting circadian rhythm
Reducing the amount of a persons rapid eye movement sleep