20. Disorders Flashcards
The most common substance related disorder is ____.
alcoholism
____ ____ ____ are categorised by continued use of a substance (such as alcohol or cocaine) that negatively affects psychological and social functioning.
Substance related disorders
Research is clearly demonstrated both ____ ___ ____ contributions to alcoholism, although researchers are still trying to track down precisely how genetic transmission occurs in different individuals.
environmental and genetic
With ____, as with alcohol, substance use and abuse not synonymous, although for vulnerable individuals, use tends to lead to abuse.
marijuana
____ is an umbrella term for a number of psychotic disorders that involve disturbances and nearly every dimension of human psychology, including thought, perception, behaviour, language, communication and emotion.
Schizophrenia
Most forms of schizophrenia begin in the late ____ and early 20s.
teens
Preoccupation with delusions or auditory hallucinations. Little or no disorganised speech, disorganised or catatonic behaviour, or inappropriate or flat affect.
Paranoid type schizophrenia
All the following – disorganised speech, disorganised behaviour, and inappropriate or flat affect – are prominent in behaviour, but catatonic-type criteria are not meet. Delusions or hallucinations maybe present, but only in fragmentary or non-coherent form.
Disorganised type schizophrenia
At least two of the following: extreme motor immobility; purposeless excessive motor activity; extreme negativism (motionless resistance to all instructions) mutism (refusing to speak); peculiar or bizarre voluntary movement; echolalia (meaningless repetition of other people’s words).
Catatonic type schizophrenia
Does not fit any of the subtypes above, but meets the symptom criteria for schizophrenia.
Undifferentiated type schizophrenia
Has experienced at last one episode of schizophrenia, but currently does not have the prominent positive symptoms (delusions, hallucinations, disorganise speech or behaviour). However, continues to show negative symptoms and milder variation of positive symptoms (odd beliefs, eccentric behaviour).
Residual type schizophrenia
Symptoms – false beliefs firmly held despite evidence to the contrary.
Delusions
Symptoms – perceptual experiences that distort or occur without external stimulation.
Hallucinations
Symptoms – the tendency of conscious thought to move on associative lines rather than to be controlled, logical and purposeful.
Loosening of associations
Schizophrenic symptoms can be categorised into ____ __ ____ symptoms.
positive and negative
____ symptoms – relatively chronic and include flat affect, lack of motivation, peculiar or withdrawn interpersonal behaviour and intellectual impairments. That called negative because they signal something missing, such as normal emotions.
Negative
____ symptoms – include disorganised (e.g. disordered thought and bizarre behaviour) and psychotic (e.g. delusions and hallucinations) symptoms. They are called positive symptoms because they reflect the presence of something not usually or previously there, such as delusions.
Positive
Theories - ____ of schizophrenia is at least 50%.
Heritability
Theories - Most theorists adopt a ____-____ model of schizophrenia.
diathesis-stress
Theories - ____ may also play a role, at least in some individuals with schizophrenia.
Glutamate
Theories - According to the ____ hypothesis, positive symptoms of schizophrenia reflect too much dopamine activity in the subcortical circuits involving the basal ganglia and limbic system, where is negative symptoms reflect too little ____ actively in the prefrontal cortex.
dopamine
Theories - ____ variables, notably expressed emotion (criticism, hostile interchanges and emotional overinvolvement by family members), play an important role in the onset and course of the disorder.
Environmental
Theories - Other data implicate abnormalities in the ____ __ ____ of the brain, such as enlarged ventricles and corresponding atrophy (degeneration) in the frontal and temporal lobes.
structure and function
____ ____ are characterised by disturbances and emotion and mood, including both depressed and manic states (characterised by symptoms such as abnormally elevated mood, grandiosity and racing thoughts).
Mood disorders
Theories - ____ __ ____ events that affect the developing nervous system my also be involved in some cases of schizophrenia.
Prenatal and perinatal
A less severe type of depression is ____ ____. It (or dysthymia) refers to a chronic low-level depression lasting more than 2 years, with intervals of normal moods that never last more than a few weeks or months.
Dysthymic disorder