I can directly trace mine to a traumatic brain injury when I was 2. The blindness factor came in much later (at age 23) and no light perception was Feb 2010. so, I can say its not just for those of us who are blind (although we probably notice it a lot more). Basically, there is at least 15% of the population that may suffer from it (regardless of other disabilities). Here is one thing that doesn't seem to be getting publicized: I know of at least 2 profoundly deaf friends who also suffer the "night owl" problems. One was deaf from birth and the other lost his to a TBI suffered when he was a teen. Yet, the only ones really being mentioned are the totally blind. Curious that?
-eric
On Feb 3, 2014, at 6:59 PM, Tom Brennan wrote:
> Oh, I've had it all my life. That really doesn't address the issue of exactly
> what is going on, though. Its in the same box as "autism spectrum".
>
> Tom
>
>
> Tom Brennan KD5VIJ, CCC-A/SLP
> web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
>
> On Mon, 3 Feb 2014, Steve wrote:
>
>> Date: Mon, 03 Feb 2014 16:47:59 -0500
>> From: Steve <[log in to unmask]>
>> Reply-To: For blind ham radio operators <[log in to unmask]>
>> To: [log in to unmask]
>> Subject: Re: Off Topic: Non 24 A Blind Disease?
>>
>> Tom,
>>
>> It is a very low incidence in sighted people.
>> I actually heard about some studies in this area as part of my Human
>> Resources job in the mid 1990s. I worked with a consultant that specialized
>> in optimizing schedules for continuous/rotating shiftworkers as is set up in
>> many manufacturing plants as well as the utility company I worked for. Some
>> shiftworkers who work a lot of night shifts and are only exposed to
>> artificial light exhibit some of the same characteristics, but to a somewhat
>> lesser extent.
>>
>> The consultant didn't know that I was blind. When he met me, he asked if I
>> had any issues with sleeping? I think my jaw dropped. His company was
>> based out of Boston, and he said he was aware of some research at Harvard
>> involving sleep issues faced by the blind. Again, this was in circa
>> 1996-97.
>>
>> By the way, I've been fighting the sleep-wake issue for years, and almost
>> lost a previous job over thirty years ago because I fell asleep in a
>> meeting. I can most definitely assure you it is not a contrived phenomenon
>> for those of us who experience it in its more extreme cases.
>>
>> Steve, K8SP
>> ----- Original Message -----
>> From: "Tom Brennan" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Monday, February 03, 2014 7:47 AM
>> Subject: Re: Off Topic: Non 24 A Blind Disease?
>>
>>
>>> Interesting thing about all of this is that it is also seen in sighted
>>> folks who
>>> have unusual sleep schedules. The must interesting question to all of
>>> this is
>>> whether it is actually a disorder or a result of physiology -- its a
>>> chicken and
>>> egg question.
>>>
>>> Tom
>>>
>>>
>>> Tom Brennan KD5VIJ, CCC-A/SLP
>>> web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
>>
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