I don't agree with your assessment that most autistic people don't have the third trait.
I completely agree that not all, but with limitations to imagination being in the diagnostic criteria for classic autism, I don't think you can claim that because of a few poster's on here that a majority of people don't have a trait.
Personally, I meet 1, 2, 3, and don't know what it means by 4.
Also, alexithymia isn't a diagnosis, its a trait that is common in people on the autistic spectrum, is not unique to the autistic spectrum and has a name.
To explain more about my own particular manner of both lucid dreaming and having very limited dreams and fantasies.
-I don't daydream at all. I'll think about things, but I don't daydream.
-I rarely fantasize about things I want to occur. In the few cases I do, its about things that are directly related to a special interest that are not current available to me (the only example I can think of is fantasizing about how I can get some animal to live with me when the situation made it seem impossible)
-My nighttime dreams are rarely things I can remember, and I usually feel like I didn't dream.
-When I do know I dreamed, they're very realistic dreams. I've had dreams realistic enough that over 6 months later I managed to not be aware that things that it was a dream.
-I do in fact lucid dream. In my lucid dreams, I still am that realistic. I will go lucid in a nightmare and will end up swimming in the dream. I don't go flying or fighting superheros, I find a nearby pool and swim (I'll give it that the pool didn't smell of chlorine though). Normal lucid dreams are similar.
On wikipedia there's the following description:
wiki wrote:
Typical deficiencies may include problems identifying, describing, and working with one's own feelings, often marked by a lack of understanding of the feelings of others; difficulty distinguishing between feelings and the bodily sensations of emotional arousal; confusion of physical sensations often associated with emotions; few dreams or fantasies due to restricted imagination; and concrete, realistic, logical thinking, often to the exclusion of emotional responses to problems. Those who have alexithymia also report very logical and realistic dreams, such as going to the store or eating a meal.
I personally fit all of those traits. If 4 is referring to 'concrete, realistic, logical thinking, often due to the exclusion of emotional responses to problems', I'd also say that from my experiences I don't think a majority of spectrumites don't have that trait.
I'm going to continue to disagree with you. If it isn't true that most people with autism don't fit criterion 3, then most people with autism would fit criterion 3. However, the majority of the general population does not fit criterion three, so that would suggest that if it's the majority among Autistics that meet criterion 3 then restricted imagination would be a key component to autism. I argue against this, first because it seems that everyone on the forum except for you is suggesting the opposite, secondly because most of the optional criteria for autism regarding imagination really just refer to a lack of normal pretend play and the like, and thirdly because I've seen claims that having an intense inner fantasy world is an autistic trait. Regarding the 4th croterion, well I might have completely misinterpreted it.
I'm aware alexthymia isn't considered to be a mental disorder, but isn't it still diagnosable?