Chapter 14 - Schizophrenia and Related Disorders Flashcards
What is Schizophrenia? greek word “split mind”
A psychotic disorder in which personal, social and occupational functioning deteriorate as a result of unusual perceptions, odd thoughts, disturbed emotions, and Moto abnormalities
What is psychosis?
A state in which a person loses contact with reality in key ways. Their ability to perceive and respond to the environment becomes disturbed
What are hallucinations ?
False sensory perceptions, the experiencing of sights, sounds, or other perceptions in the absence of external stimuli
What are delusions?
A strange false belief firmly held despite evidence to the contrary
What is a MICA?
Mentally ill chemical abuser (dual diagnosis patient)
They display both a severe mental disorder, as well as a substance use disorder
What is the downward drift theory?
Theory that schizophrenia causes suffered to fall from a higher to lower socioeconomic level or to remain poor because they are unable to function effectively
What is a common belief, clinicians have about schizophrenia today?
Most believe that schizophrenia is actually a group of distinct disorders that happen to have some features in common
What are the positive symptoms of schizophrenia?
Symptoms of schizophrenia that seem to be excesses of or bizarre additions to normal thoughts, emotions or behaviours (excesses of thought, emotion and behaviour)
What are the negative symptoms of schizophrenia?
Symptoms of schizophrenia that seem to be deficits in normal thought, emotions, or behaviours
What other symptoms of schizophrenia are there?
Significant difficulties with memory and other kinds of cognitive functioning
What are the positive symptoms associated schizophrenia?
These “pathological excesses” to a persons behaviour include delusions, disorganized thinking and speech, heightened perceptions and hallucinations, and inappropriate affect
Which form of delusion is most common?
Delusions of persecution, in which they are being targeted
What are delusions of reference?
Attach special and personal meaning to the actions of others or to various objects or events
What are delusions of grandeur?
Believe themselves to be great inventors, religious saviours, or other specially empowered persons
What are delusions of control?
Believe their feelings, thoughts, and actions are being controlled by other people
What is formal thought disorder?
A disturbance in the production and organization of thought
What are the positive symptoms associated with formal thought disorder?
Loose associations, neologisms, perseveration and clang
What is loose associations (derailment)?
Most common formal thought disorder, rapidly shift from one topic to another, believing that their incoherent statements make sense
What are neologisms?
Made-up words that typically have meaning only to the person using them
What is perseveration?
They repeat their words and statements over and over again
What is clang?
A rhyme to think or express themselves
ex: “well, hell, its well to tell”
What are heightened perceptions?
The perceptions and attention of people with schizophrenia seem to intensify, they feel their senses are being flooded by all the sights and sounds that surround them
What are the tracking skills of a person with schizophrenia?
They have deficiencies in smooth pursuit eye movement, possibly because of their difficulties in attention
What is the most common form of hallucinations?
auditory hallucinations, in which they hear sounds and voices that seem to come from outside of their heads. The voice can either talk directly to them or be overheard by them
What does research suggest about people with auditory hallucinations?
They actually produce the nerve signals of sound in their brains, “hear” them, and then believe that external sources are responsible
Link between Broca’s area and auditory hallucinations?
More blood flow in Broca’s area (the region of the brain that helps people produce speech)
Link between the auditory cortex and auditory hallucinations?
PET scans show that there is heightened activity during a hallucination
Link between the front of the brain and auditory hallucinations?
The front of the brain, responsible for determining the source of sounds is quiet during hallucinations, the brain cannot recognize that the sounds are actually coming from within
What are tactile hallucinations?
May take the form of tingling, burning, or electric-shock sensations
What are somatic hallucinations?
Feel as if something is happening inside the body
What are visual hallucinations?
May produce vague perceptions of colours or clouds or distinct visions of people or objects
What are gustatory hallucinations?
Regularly find that their food or drink tastes strange
What are olfactory hallucinations?
Smell odours that no one else does
What is inappropriate affect?
Displays of emotions that are unsuited to the situation, may undergo inappropriate shifts in mood, may be a result that they are being responding to other stimuli flooding their senses
What are the negative symptoms associated schizophrenia?
“Pathological deficits”, are characteristics that are lacking in a person. Including: poverty of speech, blunted and flat affect, loss of volition, and social withdrawal
What is poverty of speech/ Alogia
Alogia is absence of or a decrease in speech (negative kind of formal thought disorder)