The Evolution of Autism (The Solitary Forager Hypothesis) [CC]
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- เผยแพร่เมื่อ 14 ม.ค. 2022
- I am so incredibly excited to tell you all about this study !! I know this video is a little longer than I usually make them but trust me, it's worth it :)
Sources and such!! -
This paper - journals.sagepub.com/doi/full...
Crash course evolution - • Human Evolution: Crash...
Anxiety & adaptation - deepblue.lib.umich.edu/bitstr...
Depression & adaptation - people.uncw.edu/bruce/psy%2029...
Schizophrenia & adaptation - www.researchgate.net/publicat...
Psychopathy & adaptation - is.muni.cz/el/1423/podzim2012...
PTSD & adaptation - cogprints.org/6345/1/2008_Brac...
ADHD & adaptation (Book) - / 278998.attention_defic...
ADHD & adaptation (Article) - pubmed.ncbi.nlm.nih.gov/9401328/
Baron-Cohen’s empathy paper - direct.mit.edu/books/book/389...
Baron-Cohen’s genetics paper - docs.autismresearchcentre.com...
Baron-Cohen’s extreme male brain theory paper - www.google.com/search?q=the+e...
Systemizing - docs.autismresearchcentre.com...
Nature Deficit Disorder - richardlouv.com/blog/what-is-n...
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Autism Resources:
Ultimate resource guide - www.disabledautisticlesbian.c...
How to support an autistic person - www.disabledautisticlesbian.c...
Help! I think I’m autistic - www.disabledautisticlesbian.c...
Unmasking/How to Start Over - www.disabledautisticlesbian.c...
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Hello my dears!
My name is Sydney and I’m an actress/singer-songwriter who writes music about my experiences being autistic, disabled, gay, and in general, a human. My goal is to fill musical gaps and write about things people often forget to make music about. I’m also a vintage enthusiast and disability advocate (among other things). I’ve now released 3 albums and, most importantly, my favorite color is buttercup yellow.
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![Autism & Animals (feat. my dog) [CC]](http://i.ytimg.com/vi/IjgLBsWWtSY/mqdefault.jpg)
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This lines up extremely well with how I looked at autism in the population at large. My hypothesis was that autistic traits accumulated in higher density in hunter/gatherer societies because it would be an advantage over other people, and these traits were then passed down to us. For example, those of us with sensitive hearing (myself included) may cringe in physical pain from the noise created by traffic, but in the wild, it means we can hear even the quietest disturbances that would allow us to track game. In fact, I quite enjoy hunting (or just sitting in nature) because I feel more connected in that kind of environment
I've had most of these ideas but I've never seen anyone talk about them before. I went on a 52 day hike that ended about this time last year, and I didn't know I could be so functional, happy and confident in my ability to get things done. Like, I didn't know my brain and body could ever exist that way. I even gained weight thanks to my ability to eat the same foods as often as I wanted, getting into an easy routine of very similar snacks and meals at the same times every day.
The things that normally caused me the most distress were almost totally eliminated. The only times I had meltdowns were when I needed to cross a deep or fast moving stream or creek, when I was worried my chronic illness or an injury could take me off trail, or a couple times where I had to cover more miles than I expected or didn't know where I was going to camp for the night, and had to push myself to keep going with inadequate breaks.
When I was able to have meltdowns on my own time, without worrying about other people's thoughts and perceptions, I was actually able to let them happen and I learned that they serve as a vent. I actually can move forward, if I'm free of others expectations and demands and left totally alone to regulate myself in an environment that meets my sensory needs and actively engages my personal interests (plants & ecology). I learned I'm not defective, I can be very effective, I just can't fit others expectations of me or monetize what I'm able to do. And that's not my fault, really.
LOOOOOOOVE! Human evolution is one of my special interests. Autism is one of my special interests. BOOM! Omg pleeeeease make more like this. I will probably watch this a few times because I love it and my adhd brain missed bits. At some point I will also read the paper(s). You’ve probably already read this but The Anatomy of Love is a fascinating delve into cultural/social evolution. I read the original edition a few years ago but when I went to buy a copy for a friend I realised there is a new edition that is twice the size so I bought it for myself instead lol. Haven’t read it all yet, so many things to read, too much ADHD lol. Thank youuuu for all the time and effort of this video 😁😁😁
Bookmarking it right now!! I will try to check it out if I have time in the next few months :)
My understanding of homo sapiens / homo neaderthalensis is that it was a combination of interbreeding and pushing them out. Homo sapiens have a body shape more suited to grassy planes, and homo neaderthalensis had a body shape more suited to dense forests, and as the ice age ended Europe went through a period where grasslands became more common than forests, and so homo sapiens habitat increased while homo neaderthalensis habitat shrunk.
I believe you've just cleared a wee bit of dust from my high school history class memory, thank you! :)
@@disabled.autistic.lesbian Yay! I'm helpful. 🙂
I'm an autistic field biologist, and being in nature definitely feels like home to me. The solitary forager idea is probably correct, and converges with the monotropism model (high attention allocation, low attention flexibility, slow attention transition). Interestingly I recently learned snakes, especially boas, most of whom are ambush predators, seem to exhibit monotropism. Captive snakes enter "feeding response" when herpetoculturalists approach the enclosure, characterized by extreme focus on the handler, and will strike even when they know the keeper for years. Snakes are often trained to disengage feeding response with a stimulus (eg a snake hook), and crucially, they take time (often minutes) to transition out of feeding response. But that's not all. When handled for an extended periods of time, snakes may take time to be comfortable returning to their cages. Some species, again usually boas, exhibit self-injurious behavior ("rubbing") when their enclosures are inadequate.
Very well spoken and well researched video about a fascinating aspect of autism. And you even provided all of that without obnoxious reminders about likes, subscribing, donations or sponsors (which sadly is very rare nowadays). Thank you for your excellent and hard work! The only thing I'm surprised about, is why you have so few views.
Thank you so much for allowing us neuro-nerds (I LOVE THAT PHRASE btw) to know some of the specifics lol --from a person with a special interest in neuroscience
I’m on the autism spectrum, I also have complex PTSD, and a physical handicap. I don’t usually publicly share what my physical handicap is, because I get asked a lot of ignorant questions, or I get people thinking that I’m just crazy, because they see somebody typing, but they have a physical handicap. I have a lot of empathy, and I feed off other people’s emotions. Good or bad. For example, if I hear somebody laughing, I start laughing, because I’m extremely happy when they’re happy and having a good time. When someone is stressed, I feel their stress, which I’m extremely tough on myself for that. Usually my autism doesn’t get in my way of daily life. Sometimes my CPTSD does, but I usually do my best to not allow it to get in my way. My physical handicap is the main thing that gets in my way of daily living.
I didn't fall down this rabbit hole, it pounced on me and dragged me right in.
This was so interesting!! I loved learning about this and would totally love more videos like this in the future!!
This jives with something I have felt and thought for a long, LONG time. Thank you for putting words and thought and science into this
This was super interesting! My major may be chemistry but I'm so fascinated my evolutionary and molecular biology so... Also saying "Everyone is a bit autistic" is as right and wrong as saying "Everyone is a bit black". Sure we all have come from Africa at some point but we are not all black. It's more about how we deal with it in this society.
Sydney, this is seriously brilliant. Thank you so much for putting this video together 👏😘🤗
Neanderthals are thought to have evolved in Northern Europe following one of the migrations out of Africa by Homo erectus, and prior to the evolution of Homo sapiens in Africa. (Special interest ✅ 😉)
This is wonderful content, immediately felt comforted and understood by your presence and "vibe" as a queer, neurodivergent person, that is a rare feeling. - Definitely subscribed
I'm in the spectrum and iv always said I can tell what strangers are on the spectrum aswell by their look.
I noticed last year that every single one of us at a autism group had large ears as kids.
wow oh wow. very glad you pointed me to that paper. excellent blog material!!
In specific circumstances, your greatest strength can become yore greatest weakness, and vice-versa.
I've heard of autistic dogs before. They don't have the diagnosis of autism, but from what I understand, they can get diagnosed with canine dysfunctional behavior (that's a horrible name😒). Some of these dogs are even known to line up their toys. It's interesting to me that dogs are also social animals.
Also, if I look it up I keep getting canine cognitive dysfunction in the results, which is actually canine dementia. I'm pretty sure it's an unrelated diagnosis.
That is very interesting! I will definitely have to look more into that, thank you !!
@@disabled.autistic.lesbian You're welcome☺
That is so fcking cool. Thanks for sharing
THANK YOU SO MUCH FOR MAKING THIS VIDEO AND SHARING THE SOURCES 💕💕💕 I AM SHOUTING IN EXCITEMENT AND STIMMING WITH JOY. (This is making me want to do a Masters degree 😮)
My script for this was the equivalent of a 21 page college paper with 15+ sources and I'm realizing that low key that is a masters... I don't like school though so that's a bit of an issue
Im not even halfway through the video and i have to keep pausing and taking notes because it us so jam packed with information, thank you for making this. I started thinking about this yesterday when pondering about how we and apes share a common ancestor, and wondering what types of species we might be a common ancestor for in the future and what that would look like, maybe more evolution in the brain than physical. Thanks again, this is super interesting.
I read this paper on a plane and filled like 10 pages of my journal with notes I totally feel you!! I've never been so engaged in a topic before so I'm glad you felt the same way :)
I like the patterns your thinking follow. I recommend watching videos from Stefan Milo, North 02, and Gutsick Gibbon for some quality anthropology information presented in a digestable manner.
So now the issue is, how do we reclaim our land?
Outstanding
Reading Desmond Morris' 'Naked Ape' way back when was a similar 'ah ha!' moment for me: I'm sure most of it is way out of date now but it really helped form my way of trying to understand other humans and their mysterious ways...
the hyper-male brain theory on autism posits higher than normal pre-natal exposure to testosterone ie in the womb. Not necessarily higher serum testosterone levels overall.
Fascinating! I am curious about something- I have read that there is evidence that older parents are more likely than young ones to have a child with autism. If autism/forager gene is a regular variant, I am curious about why autistic offspring are more common from older parents
That's super interesting! I have not seen that research. Honestly, there are SO many factors as to why that could be the case (and also note that most studies that show "statistical significant difference" are like. 42% to 58% so it's not exactly real-world applicable) so if anything I think there's probably something spurious going on with that correlation. First thought being that maybe autistic people have children later in life which leads to a higher correlation, maybe older people are more likely to spot autism in their child and bring them to be diagnosed while younger people ignore it and try to assimilate them, etc.
@@disabled.autistic.lesbian Ah, that makes sense. I should have gone deeper to investigate that claim and what it means or may not mean. Thank you so much for the thoughtful response. All of your essays are so insightful and well thought out. Your channel has been a favorite resource as I process my late autism diagnosis. I appreciate your content so much. Thank you
In the psychology course I'm taking it's introduced 5 approaches, the biological approach, the learning approach, the cognitive approach, the psychodynamic approach, and the humanist approach.
The biological approach speaks about the evolution to human behaviour and we can see this throughout history. In the biological approach, evolution is when a particular gene increases and spreads for the purpose of changing behaviours to behaviours required for survival.
The percentage of people being born with neurological differences primarily genetic is continually increasing as time's passing by. Neuroscience shows us that in neurodivergant people alternative brain regions have variation as well. If we take blind people for example, a blind person's brain has variation in alternative regions that give the individual the natural ability to read braille instead of writing.
Scientists have hypophisised that approximately 90% of technological inventions came from the minds of autistic people. It's noticed there's a disproportion between entrepreneurs that the majority of them are dyslexic with science showing their brains are naturally more creative. It's seen so many of the greatest artists in all forms of art are diagnosed with Down Syndrome and that their brain functions artistically by its nature.
As scientists have stopped staring at neurodevelopmental disabilities through a pathological lense, they've began seeing great advantages as well as great difficulties because of the variation in alternative brain regions.
So many people including scientists are believing the genetic information behind neurodevelopmental disabilities is a step in human evolution by these genes increasing.
"In the 19th century the concept of "normal" received numerical support from the French statistician Adolphe Quetlet, who collected data about height, weight, and other variables and came up with the mean for the "average" man. This methodology of averaging takes us out of the range of particular individuals and places in their stead the idea of a pure mathematical value. The average of 12, 6, 8, 9, and 15 is 10, yet 10 isn't even represented in any of the original numbers - it's a new number, something else besides the actual reality of what is given. In the same way, there really isn't an "average" person anywhere; "average" merely represents a statistical artifact. For something that doesn't really have any tangible existence, the idea of "normal" certainly has been invested with a great deal of power in our society!"
(PhD. Thomas Armstrong, The Power of Neurodiversity)
People with neurodevelopmental conditions are well above "average" in just as many areas as they are below "average".
"Psychiatry calls great elation 'a hypomanic disturbance,' which is like calling it a hilarious distress, and regards all heightened states, whether of chastity or sensuality, scrupulosity or carelessness, cruelty or compassion, as pathologically suspect - how little would a healthy life mean if its only goal were a middle condition between two extremes! How drab it would be if its ideal were really no more than the denial of the exaggeration of its ideals!"
(Robert Musil, author of The Man Without Qualities)
I think that's a great point, how ideal is the life of someone in denial of the ideals of life itself?
you are an energy pill, subbed, I"m still gonna go with the extreme male brain theory, it fits my experience.
Somewhere along the road, I came across a story about a cat with Down syndrome. Also, inbreeding in puppy Mills ?
This is a WONDERFUL video, thank you!
Down Syndrome is a clear "cause" for lack of a better word, so that genetic difference (typically an extra of chromosome 21) could happen in some manner in other species to some degree?
I do love the orangatang angle though
Also, also... Have you found out if some areas of the world have a high likelihood of Autism? With Fragile X there are certain pockets of families in different locations around the world.
Interesting! Since making this video I have learned a bit about the Founder Effect which leads to things like that in isolated populations. Not entirely 100% sure how that plays into all of this, but it definitely does
How interesting! Be an orangutan in a world full of chimps!!!
Done do done lo 👌👌👍👌
I cant take the constant qualifiers, trigger warnings, and general hang-ups. Maybe there was pertinent information here but I couldn't get past the first 5 min.
You know that most people viewing this are probably authistic, right? So why did you put this one bright pixel in the mid of your face, which is slighly out of focus? How can you be so cruel? :-D