Wednesday, September 30, 2009

A strange version of dementia

Younger onset dementia - Health Report

Here's an interesting article which deals with a type of dementia I hadn't heard of before: young onset frontotemporal dementia:

John Hodges: Frontotemporal dementia means it's affecting the frontal lobes predominantly and the main hallmarks of that are personality change and language deficits, which we call aphasia.

Lynne Malcolm: Give me an example of the sort of behaviour that might present in frontotemporal dementia?

John Hodges: Becoming socially inappropriate, saying embarrassing things, the type of things one might think but not say. You know, meeting somebody that you haven't seen for a long time and saying 'oh, you've put on a lot of weight,' or, you know, 'you're very fat since I saw you last time.' Or often rather sexually disinhibited comments, particularly the men, which is usually put down to, oh well, you know, one too many drinks. Because part of this disinhibition is that people often do start to drink too much alcohol. Problems with judgment, often making unwise decisions, becoming very gullible to scams and losing a lot of money, making bad investment choices, these are all symptoms that are related to us by families that we see.

This range of symptoms mean that the cause is often not recognised for some time. Instead, depression is usually first suspected. So what are the early signs?:
John Hodges: Well we don't want an outbreak of everybody with a little bit of an occasionally inappropriate thing being thought to have frontotemporal dementia, but I think a persistent change in character. I mean the one thing the families say about people with frontotemporal dementia is, you know, 'they are no longer the person they used to be. There's been a real change in their empathy and judgment.' So I think that's a very important hallmark.
And it turns out that a difficulty with understanding sarcasm is part of it too.

I wonder to what exact there is a degree of self awareness of the personality changes in the early stages.

Overall, a very unusual disease.

In other dementia news: playing a game in which you stand a good chance of repeated concussion is not a good idea.

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