Psychosis information: Delusions

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Delusions are defined as strong false beliefs which are disconnected from reality. Cultural or religious beliefs are by definition not
to be included as a 'delusion', as the belief has to be idiosyncratic to the person. They don't respond well to facts like contradictory
information and lack of actual proof, and they are often paranoid or otherwise bizarre in nature.

The four groups of delusions

Bizarre:

These delusions are clearly not possible things that can happen in the real world, such as believing that all of your organs have been
replaced with someone else's without leaving a scar.

Non-bizarre:

These delusions are still false beliefs, but are things that can possibly happen in the real world, such as believing that you are under
police surveillance.

Mood-congruent:

A delusion that is consistent to a depressed or manic state. A depressed person may believe that people on television disapprove of
them; a manic person may believe that they are a god.

Mood-neutral:

A delusion that is unrelated to depression or mania, such as believing that an extra limb is growing out of the back of your head.

Themes of delusions - there are a lot, sit tight

Persecutory/Querulant:

By far the most common type of delusion, they include themes where one is being persecuted. Followed, harassed, drugged or
poisioned, cheated, conspired against, spied on, attacked, tormented, sabotaged, tricked, ridiculed, the list goes on and on. The
individual thinks that either harm is going to occur or is occuring, and that the persecutors have intention to harm.

Grandiose:

Also known as delusions of grandeur, they are a subtype of delusional disorder but may also be present in schizophrenia and manic
episodes of bipolar disorder. Usually they consist of beliefs that one is famous, omnipotent, wealthy, powerful, a deity or god-like
figure, etc. They usually have a supernatural, science-fictional, or religious tinge to them. They include exaggerated beliefs of either
self-worth, skill, talent, strength, fame, power, knowledge, identity, or relationship to a deity or famous person.

Delusion of control:

The belief that another person or group is controlling you, controlling your thoughts, feelings, impulses, behaviors, etc. The group
may be a defined person like a manager, or it may be an undefined force.

Cotard's delusion:

The delusion that you are dead. It may also include that you don't exist, that you are immortal or otherwise incapable of dying, or
that you have lost your internal organs, blood, or other body parts.

Delusional (Pathological) jealousy/Othello Syndrome:

The belief that a spouse/lover is having an affair, with of course, no proof to back it up.

Erotomania/Clerambault's Syndrome:

The false belief that another person is in love with you. Usually, the person who is "in love" with you is of higher status, like a
celebrity. A person may believe that the person is sending secret messages to them, and can lead to stalking behaviors.

Delusion of guilt, sin, or self-accusation:

These are feelings of guilt or remorse that are ungrounded to a delusional intensity. This is pathological levels of guilt typically about
moral or religious issues (although it can be non-religious.) It may look like a fear of being evil, or a severe sinking feeling that you've
done something wrong.

Thought broadcasting:

This is the belief that other people can somehow know your thoughts, often a feeling that others can hear them. A person may also
think that their thoughts are being broadcasted on television or the radio.

Delusion of thought insertion:

The delusion that your thoughts are not your own, but are instead someone else's that have been inserted into your mind.

Delusion of reference:

The false belief that insignificant remarks, events, or objects in your environment have personal meaning or significance. Usually
these are negative events, but can be grandiose in nature. It can be the feeling that strangers are talking about you, things in books
have been written specifically for you, believing that lyrics of a song are about you, posts on blogs having meaning to you, and things
such as.

Religious delusion:

The belief that you are a god or are chosen to act as a god.

Somatic delusion:

Delusion that relates to the function of the body, body sensations, or physical appearance, usually relating to the idea of a person
being diseased or abnormal. A specific example would be delusional parasitosis, where you believe you are infested with parasites.

Delusion of poverty:

A person would strongly believe that they are financially incapacitated, impoverished, or destined to fall into poverty.

Nihilistic delusion:

The belief that you or parts of you don't exist, or some object in reality isn't actually real.

Folie à Deux:

Basically, shared psychosis. Symptoms of delusional belief and sometimes even hallucination are shared from one individual to another. Common with couples

Delusional misidentification syndrome:

An umbrella term of delusions that involve the belief that the identity of a person, object, or place has been altered. It includes:

Ideations:

They can be thought of as a lesser form of delusion. Basically, if the person can consider that other explanations for what they
believe, it's an ideation. An example would be a delusion of reference is being convinced that someone else was talking about you,
but in an ideation only considering it or thinking it then being disproven and accepting that it might not be true.

Magical Thinking:

This is somewhat related to delusions due to it coming from a fault in thinking so I'm placing it here. This is the belief that unrelated
events are casually connected, even if there isn't a link between them in reality. This would be like thinking your personal thoughts
can influence the external world without acting on them.