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Mueser and colleagues (1990) examined 117 DSM-III-R schizophrenic or schizoaffective disorder patients and reported a prevalence of 16% for visual hallucinations. Interestingly, they found that the global severity of illness was higher in patients with schizophrenia and visual hallucinations. Teeple and colleagues (2009) observe that this finding makes sense ...


4

No – at least, they shouldn't be required. Wikipedia describes the DSM-5 as requiring "delusions, hallucinations, or disorganized speech". Delusions are distinct from hallucinations in that they aren't necessarily perceptual in a conventional sense, though both diverge a person's conscious experience from empirical reality. Disorganized speech is ...


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According to the DSM V, for the diagnosis of schizophrenia, the following is necessary: two (or more) of the following, each present for a significant portion of time during a 1-month period (or less if successfully treated): (1) Delusions (2) Hallucinations (3) Disorganized speech (4) Grossly disorganized or catatonic behavior (5) Negative ...


2

There is some evidence that thought disorder (also called loose association) arises, at least partially, from increased spreading activation; schizophrenics, for example, often show a greater increase in activation to indirectly related words compared to unrelated words, than do non-thought disordered controls. This is primarily a cognitive mechanism, not a ...


2

Since asking the question, I was able to locate a first-person account of monothematic delusion, namely, of denial of ownership of one's own limbs (somatoparaphrenia/asomatognosia). It is due to the neurologist and writer Oliver Sacks, who in his fourth book A Leg to Stand On (1984) described his recovery after a fall in a remote region of Norway in which he ...


1

It is to be noted that if you have a very complex piece of abstract art, and you view this art on a computer monitor, but the screen resolution has been reduced to a mere 640x480, then you most likely will not be able to make heads or tails of the picture itself. Thus, if complex events occur in our reality, they may be too complex for average people to see ...



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