No, Tom,  ASD is strictly or mainly behavioral in nature, as I understand 
it.  Non-24 is physiological in nature.  In sighted people, photic input is 
captured by intrinsically photosensitive retinal ganglion cells located in 
the ganglion cell layer of the retina and transmitted to the master body 
clock.  The master body clock then triggers autonomic and neuroendocrine 
signals throughout the body to synchronize peripheral clocks and their 
corresponding rhythms in all other tissues, including but not limited to the 
heart, lungs, liver, pancreas, and gastrointestinal tract.

Also, it has a diagnostic code now.
ICD9 Code 327.34/DSM5 Code 307.45

Steve, K8SP

----- Original Message ----- 
From: "Tom Brennan" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, February 03, 2014 8:59 PM
Subject: Re: Off Topic: Non 24 A Blind Disease?


> 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.