Schizophrenia Flashcards
what is a delusion?
This is a false belief held by a person or individual and is not part of the persons culture, and cannot be controverted despite contrary evidence
What are the different Types of Delusions?
i. Erotomania: a delusion in which a person (typically a woman) believes that another person (typically of higher social status) is in love with them.
ii. Delusions of Grandeur: a strongly held belief that you are someone with special abilities and powers, eg: you believe that you are a superhero
iii. Delusions of Reference: a strong belief that events in the environment are related to you for example, the belief that a television programme is talking about you
iv). believing that people are always speaking about you
v) Nihilistic: false belief that they exist as aliens (exist in shadows, ghosts, etc.)
vi) Persecutory delusion: a strongly held belief that you are in danger, that you are being conspired against, and that others are pursuing you to try to do you harm
What is an hallucination?
- False perception held by an individual that is not part of their culture and cannot be controverted despite contrary evidence. They mainly affect the senses.
Types Of hallucinations
- Visual hallucinations: false visual perceptions
- Auditory hallucinations:
- Gustatory hallucinations: taste * Olfactory: smell
- Tactile hallucinations: sense of touch
Hallucinations of the visceral
What are negative symptoms?
Flattening of Emotions
Anhedonia Avolition: lack of motivation
Inappropriate emotions
Biological (Genetic) Explanationsof Schizophrenia
Twin studies: MZ Twins (100% DNA) and DZ Twins (100% DNA)
Adoption Studies: helps seperate the influence of genetics and the environment.
Biological (Biochemical) Explanation
Dopamine Hypothesis: States those with schizophrenia produce more dopamine than those without
Drug Trials
Post-Moterm Studies
PET Scans
Cognitive Explanations
Frith:
Abnormality in self monitoring. appply logic to their hallucinations making them believe they are from external source
Biological treatments
Typical Anti-psychotics:
1st Gen 1950’s. reduce dopamine (dopamine antagonists) effects but have severe side effects (tardive dyskineasia)
Atypical anti-psychotics:
2nd gen 1990’s. less side effects but lose their effect in a shorter time
ECT: Passses electricity through thr brain to cause a seizure
Psychological Treatments
CBT: talk therapy that disputes irrational thoughts
mostly used alongside anti-psychotics