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May 7, 2013 By Vivek Misra 2 Comments

“Insight” in Neuropsychiatric Disorders

Lack of awareness of illness, poor insight or ‘denial’ are regarded as fundamental problems in neurology and psychiatry. The ‘object’ of the awareness differs in different conditions. For example a stroke patient may deny their hemiplegia (anosognosia) – a deficit which is visible and objective; a person with Alzheimer’s disease may be unaware of memory problems – which though measurable, are not readily apparent to the observer. Finally, a schizophrenic patient with hallucinations may or may not accept that the ‘voices’ that they alone hear are part of a mental illness. In neuropsychiatry the discrepancy between the patients’ and the relatives’ ratings provide a useful measure of ‘insight’.

In psychiatry, it is more common to use a clinician rating and to consider separate domains.  It has been have suggested that insight in psychosis concerns 3 domains: (1) awareness of mental disorder, (2) ability to re-label psychotic phenomena as pathological, (3) compliance with treatment. This last dimension is obviously important clinically. One question for research is whether these different types of lack of awareness share a common aetiology. Within schizophrenia, insight appears to be correlated with general intellectual functioning. However, this does not explain why many patients are able to detect signs of mental disorder in another person but not themselves. There is some evidence that additional executive or ‘frontal lobe’ deficits contribute to lack of insight. More recently neuroimaging studies using MRI and voxel-based morphometric techniques have shown areas of reduced grey matter density that correlate with loss of various components of insight. Hence insight in psychiatry and neurology has come together thanks to advances in brain imaging.

 

ResearchBlogging.org
Pijnenborg GH, van Donkersgoed RJ, David AS, & Aleman A (2013). Changes in insight during treatment for psychotic disorders: a meta-analysis. Schizophrenia research, 144 (1-3), 109-17 PMID: 23305612

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Filed Under: Mental Health Tagged With: Neuropsychiatry

Vivek Misra

Clinical Neuroscientist | Founder Uberbrain Research Frontier.
Join Me: Twitter / LinkedIN

Reader Interactions

Comments

  1. Tushar Kona says

    February 14, 2014 at 7:32 PM

    Many people suffer from a fear of flying. These fears are often heightened after an error tragedy such as 9/11, but they are not be sole reason to blame. The phobia dictionary classifies the fear of flying as aerophobia. This fear has also been known as a be aviatophobia, aviophobia, or pteromerhanophobia

    Reply
  2. Giavanna says

    October 13, 2014 at 7:38 PM

    This also has an interesting parallel with regard to LSD usage, in that LSD usage is correlated with decreased/damaged frontal lobe function. Initially LSD was thought to be useful in psychotherapy but it’s obvious damaging long-term effects kept it from becoming a conjunctive aide in psychotherapy.

    Reply

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