> There is ample evidence that auditory hallucinations do not exist as solitary symptoms
I'm still concerned about this. Auditory hallucinations occur across a range of different disorders. They also occur in the context of drug taking or sensory deprivation or sleep deprivation. There has been some talk of their being a continuum of hallucinatory or hallucination-like experiences.
I'm quoting from Bentall:
'The first systematic study of hallucinations in ordinary people was conducted in Britain in the end of the ninteenth century by the Society for Psychical Research. The society assumed that their findings would have implications for the understanding of apparently supernatural phenomena. A large team of interviewers questioned over 14,000 men and women. Although no attempt was made to obtain a truely random sample, anyone suffering from obvious signs of mental or physical illness were excluded. Of those questioned, nearly 8% of men and 12% of women reported at least one vivid hallucinatory experience... Fifty years later, the society attempted to check these findings by conducting a much less extensive survey, obtaining very similar results...
Modern surveys have continued to provide evidence that hallucinations are experienced by people who appear otherwise to be normal, and who do not regard themselves as mentally ill, and who have not felt the need to obtain psychiatric treatment. For example, in the United States, psychologists Thomas Posey and Mary Losch questioned 375 college students and found that 39% had heard a voice speaking their thoughts aloud... Perhaps even more surprisingly, 5% reported holding conversations with their hallucinations. Subsequent surveys of students in Britain... and in the United States... Have obtained comperable results.
Of course college students are hardly representative of the population as a whole, so it may be wrong to generalise from student samples. However, this limitation does not apply to the most comprehensive survey of hallucinations in the general population so far conducted... Although the definition of hallucinations used by Tien was taken from the DSM III R his findings were remarkably similar to those obtained almost a century earlier by the Society for Psychical Research. He estimated that the proportions of the 18,000 ECA participants who had experienced hallucinations at some time in their lives was between 11 and 13 per cent...
Two subsequent studies have provided broad support for Tien's findings. Jim Van Os and his colleagues conducted psychiatric interviews with over 7,000 randomly selected people randomly selected from the general population of Holland. When abnormal experiences secondary to drug-taking or physical illness were excluded, 1.7 were found to have experienced 'true' hallucinations, but that a further 6.2% had experienced hallucinations that were judged not clinically relevant because they were not associated with distress. Comperable results were obtained in a survey of 716 residents of Dunedin, New Zealand...
To appreciate the significance of these findings it may help to compare them with the available epidemiological data on schizophrenia.
Recent estimates suggest that, in most countries, fewer than 1% of the general population receive a dx of schizohrenia in their lives. It now appears that about 10 times that many people have experienced hallucinations'. pp. 96-96
> We need to be careful to not under pathologize in a clinical situation. Much harm comes to patients who are deemed on a spectrum of 'normal' rather than on a spectrum of 'abnormal' for the purposes of diagnosis and treatment.
But we also need to be careful not to overpathologise too.
> Any psychiatrist should be able, on the majority of occasions, be able to distinguish between internal monologue and auditory hallucinations.
But one of the leading theories of auditory hallucinations is that they just are internal monologues that are interpreted as being externally generated. Evidence for this includes sub-vocalisations (by measuring facial muscle movement) and activity in language production areas.
> I think most psychiatrists would also not change, for not other reason, a schizophrenic's medication regimen who hears chronic Aud Halluc., and has no other symtpoms.
Right. But do you mean to pathologise voice hearing in the absence of other symptoms?
Some more Bentall:
As we walked through the pristene white corridoors of the brand new conference centre one morning, Romme and I discussed our different approaches and, in the middle of this conversation, he said something that I will never forget:
"I really like your research on hallucinations, Richard. But the trouble is, you want to *cure* hallucinators, whereas I want to *liberate* them. I think they are like homosexuals in the 1950's - in need of liberation, not cure".
It took me a little time to recognise the power of this simple idea.
If people can sometimes live healthy, productive lives while experiencing some degree of psychosis (and the evidence we considered in Chapter 5 suggests they can), if the boundaries between madness and normality are open to negotiation (and the cross-cultural evidence we considered in Chapter 6 suggests they are), and if (as we have seen in this Chapter) our psychiatric services are imperfect and sometimes damaging to patients, why not help some psychotic people just to *accept* that they are different from the rest of us? *Fear of madness* may be a much bigger problem than madness itself.
[with respect to the cross cultural variation the basic idea is that many cultures have hallucinatory experiences as an important part of them. surely we don't want to pathologise the shamen and religious leaders of societies as being latently schizophrenic when their only symptom is hallucinatory experiences]
Of course this suggestion does not imply that people in distress should not be offered the most affective treatment that is available (drugs or psychotherapies). It also does not imply that steps should not be taken to protect society from the very small number of patients who behave dangerously towards others. However, it acknowledges that, for many people experiencing psychosis, treatment may not be the most helpful way forward in their lives. pp. 511-512.
http://www.amazon.com/Madness-Explained-Richard-P-Bentall/dp/0140275401
(winner of the british psychological society book award 2004)