Psychotic Disorders Flashcards
What does DSM stand for?
Diagnostic and Statistical Manual of Mental Disorders.
Give the five symptom dimensions of psychotic disorders.
Delusions, hallucinations, disorganised thinking, grossly disorganised or abnormal motor behaviour, and negative symptoms.
Name five positive symptoms.
Hallucinations, delusions, thought disorder, motor disturbances, and disorganisation in thought and behaviour.
Define thought disorder.
A state of highly disorganised thinking characteristic of individuals with schizophrenia.
Give three negative symptoms.
Affective flattening, alogia, and avolition.
Define avolition.
The inability to initiate or persist with important activities.
Define affective flattening.
A severe reduction or the complete absence of affective responses to the environment.
Define alogia.
A deficiency in the quantity of speech.
Give two other names for thought disorder.
Formal thought disorder or loosening of associations.
How does the DSM-5 define a hallucination?
A perception-like experience with the clarity and impact of a true perception but without the external stimulation of relevant sensory organs.
Roughly __% of patients with schizophrenia report hallucinations.
75
Between what percent of people with schizophrenia report auditory hallucinations, particularly those of voices?
60-70%
Between what percent of people with schizophrenia report command hallucinations?
33-74%
Give an example of a visual hallucination.
Seeing the face of a tormentor.
Give an example of an olfactory hallucination.
Smelling something rotting.
Give an example of a gustatory hallucination.
Tasting something metallic.
Give an example of a tactile hallucination.
A hand on your shoulder.
What is a somatic hallucination?
A perception of a physical experience inside the body.
Give an example of a multimodal hallucination.
A voice accompanied by the image of a figure.
List the neurological conditions that can result in hallucinations. (4)
Temporal lobe lesions, complex partial seizures, migraines and brain injuries.
What is intoxication with hallucinogens associated with?
Alterations in visual perception of the colour, size and shape of objects and the perception of more abstract images.
What percent of psychotic experiences disappear over time?
70-95%
Define hallucination.
A psychotic symptom entailing perceptual experiences that are not real, which can occur in any sensory modality.
Define hallucinogens.
Substances including LSD and MDMA that can produce perceptual illusions and distortions.
Define delusion.
A psychotic symptom entailing a strongly held belief that is not consistent with what almost everyone else believes and despite obvious proof to the contrary.
Define paranoid delusion.
A false belief of delusional intensity that someone is seeking to harm the individual or their interests.
How does the person’s beliefs and expectations influence the extent of distress associated with symptoms?
Distress is more likely if the voice is perceived as malevolent than benevolent.
Give another name for paranoid delusions.
Persecutory delusions.
What are delusions of references?
A false belief strongly held by an individual that environmental stimuli have a particular significance for them, for example, messages of a highly personal nature are being conveyed through neutral sources.
Which form of delusion is most commonly reported in clinical settings?
Paranoid delusions.
What is a somatic delusion?
A false belief of delusional intensity regarding the appearance of functioning of one’s body.
What can somatic delusions be accompanied by? (2)
Somatic hallucinations, like a feeling of electricity through the body or heightened vigilance for internal bodily sensations.
Define grandoise delusions.
A false belief of delusional intensity about the self including ideas of inflated worth, power, knowledge, ability, identity or relationships with well-known figures.
What are grandoise delusions most often associated with?
The manic episodes of bipolar disorder.
Between what percent of people with schizophrenia have religious delusions?
25-39%
What are nihilistic delusions and delusions of guilt commonly associated with?
Episodes of severe major depression.
What do nihilistic delusions involve?
A conviction that one is dead or that parts of the body or environment have ceased to exist.
What do delusions of guilt involve?
Beliefs of personal responsibility and the idea that a punishment is deserved for specific events or outcomes of catastrophic proportions.
Give two other names for jealousy delusions.
Morbid jealousy, and Othello syndrome.
What do jealousy delusions usually involve?
The belief that a partner has been unfaithful.
How may people experiencing jealousy delusions arrive at the conclusion that their partner is unfaithful?
Based on illogical evidence, like coded messages from the television.
What are erotomanic delusions?
A false belief that the patient’s romantic feelings for another, often a person perceived by the patient to be of significant status or influence, are reciprocated by the other person.
How do people experiencing erotomanic delusions justify a disavowal of feelings from the other party?
By alternative interpretations, including the conclusion that the person is prevented from directly expressing their love by other parties.
Are stalkers with psychotic disorders more or less likely to by violent than other stalkers?
Less likely.
What is passivity phenomena?
Delusions that entail a belief that the patient is under the control of some person, force or agency.
Give some examples of passivity phenomena. (2)
A belief that thoughts are being interfered with, either being implanted or removed from the mind, or the belief that actions, impulses or emotions are being directly influenced by external forces.
Give an example of a non-bizarre delusion.
The neighbour is spreading malicious gossip.
Give an example of a bizarre delusion.
Thought broadcasting, the belief that one’s thoughts can be heard by others.
What are primary delusions.
Delusions that have formed without a prior psychopathological event or process having led to the false conclusion, seemingly out of the blue.
What are secondary delusions.
Delusions that are secondary to abnormal changes in mood, memory or perception, particularly hallucinations.
How are complex delusional belief systems affected by a change in environment?
They are highly adaptive, and will change to incorporate the new environment.
Name Haddock, McCarron, Tarrier, and Faragher’s inventory for measuring psychotic symptoms.
The Psychotic Symptom Rating Scales (PSYRATS).
Who developed the Psychotic Symptom Rating Scales? (4)
Haddock, McCarron, Tarrier, and Faragher.
What do the Psychotic Symptom Rating Scales measure? (3)
The degree of preoccupation and distress associated with the delusional belief, the level of conviction in the belief, and the disruption to the person’s life caused by the belief.
What does formal though disorder refer to?
Disturbances in the logical sequencing and coherence of thought.
How is the severity of formal thought disorder measured?
Through assessments of the person’s speech, particularly thought sequencing (flow) and form (structure or coherence).
What can disturbances in the coherence of speech range from?
Subtle increases in the use of vague language to highly incoherent speech where the individual’s phrases are disjointed and nonsensical.
What can disturbances in thought be divided into?
Positive or negative manifestations.
Name some examples of positive thought disorder. (7)
Circumstantiality, tangentiality, derailment, clang associations, echolalia, using words idiosyncratically, and neologisms.
Define circumstantiality.
Speech that is very indirect and long-winded in conveying meaning.
Define tangentiality.
Oblique or irrelevant responses to questions.
Define derailment.
The person’s comments slip off one idea onto another, only partially-related topic.
What are clang associations?
A more extreme manifestation of thought disorder, where phrases become linked through sounds instead of meaning.
What is echolalia?
Occurring during acute phases of psychosis, repeating the utterances of others.
What are neologisms?
False words.
What is catatonic behaviour?
Marked motor abnormalities like adopting unusual postures or repetitive movements.
Name the twelve symptoms of catatonia.
Stupor, catalepsy, waxy flexibility, mutism, posturing, mannerism, stereotypy, agitation, grimacing, echolalia, and echopraxia.
Define stupor.
No psychomotor activity not related to environment.
Define catalepsy.
Maintaining a rigid body posture or rigidity of the limbs even when this would normally require effort.
Define waxy flexibility.
A tendency to remain in a posture even when limbs are moved into place by another.
Define mutism.
Opposition or no response to instructions or external stimuli.
Define posturing.
Spontaneous and active maintenance of a posture.
Define mannerism.
Odd, circumstantial caricature of normal actions.