Why do schizophrenics hallucinate bad/scary things? Why can't they hallucinate nice/fun things?

That’s an amazing question. I wonder if anyone has researched that. You’re right though. I think some people must hallucinate good things, but they probably don’t seek treatment or get misdiagnosed.

My brother has paranoid schizophrenia. Not all people with schizophrenia have hallucinations. Not all hallucinations are auditory. Not all auditory hallucinations are evil or destructive.

They are basically paranoid and fear everything, or, many things, so my guess is that those bad things are at the forefront of all their anxieties and dominate. Maybe they can’t notice good things or they do but because the scenes bounce back and forth they focus on things that scare them more.

I really don’t know.

I think it is because (in the minds of most people) Fear is the supreme ruling emotion. This is why you get a fight or flight emotion in tense situations. Most people are not that laid-back, most people realize that happiness is Ephemeral (fleeting) & almost all of us have a default setting for the brain & that setting is Fear.

If they had an Awesome question button, I would press it here
Here’s an image of the brain in schizophrenia.
Basically, it’s saying that many regions in the brain act abnormally when someone has schizophrenia.
The Basal Ganglia, Auditory System, Occipital Lobe, Hippocampus, Limbic System, and Frontal Lobe all work together abnormally to produce many of they symptoms experienced in schizophrenia.

My brother has schizophrenia, and he has had both types. Once, when I asked him why he was laughing, he told me he sees cartoons most of the day, similar to the ones on TV.

Schizophrenia is characterized by three categories of symptoms: 1) positive – reflects thought disorders, hallucinations, and delusions; 2) negative – are known by the absence or diminution of normal behaviors: flattened emotional response, poverty of speech, and so on; and the 3) cognitive symptoms are similar to the negative symptoms and may produce abnormalities in the same brain regions. I would say that people who suffer from positive symptoms would have scary dreams of persecution, or hear scolding voices, or hold false beliefs that others are plotting and conspiring against them. Because of the dopamine dysfunction in a Schizophrenic’s brain, there are no “good dreams” or “fun dreams” without pharmaceutical treatment.

There are people who have auditory hallucinations and hear voices. Often they say negative things but there are voices that say good things to schizophrenics too. It’s nice to be told nice things about yourself and that kind is harder to treat. Most people want to get rid of the bad voices, but the good ones may make people happy.

To most people a stuffed bear is a pleasant sight. That all changes when you see it everywhere, and it knows things about you.

When you know you are hearing voices, which btw people with schizophrenia do, you know something is terribly wrong. It adds stress, turmoil and duress to their lives and enhances an already bad situation. Think about it. If you start to hear voices, even if they are voices of butterflies and Bambi, it isn’t going to be a good thing. Unlike what @Sunny2 says. It isn’t pleasant to hear voices in your head regardless of what types of things they are saying.

I hallucinate NSFW so yes some times it is fun.

Not all hallucinations are Audio, Visual my Hallucinations are olfactory (???) I smell items that aren’t there strong oranges and the like. I was in church once and could smell “hell” strong sulphate of Iron mixed with sulphur and pipe tobacco. I know that the mind can control many of the senses so it’s possible to have all types of Hallucinations