What's the history of this psychedelic guitar riff style?

Hey, folks. I've haven't been by ILM in about a decade, but I figure you all are the best people to ask: Can anyone tell me more about the history of a particular style of guitar riff? It's a slow, fuzzy, retro-sounding, psychedelic, bwa-bwa-BWAA-ba-ba kind of riff. You can hear it in Anemone by the Brian Jonestown Massacre, and it sounded retro even back then, but it's there again on Bellringer Blues off Grinderman 2. It's kinda there on Young Men Dead by the Black Angels. (Links are to youtube.) If all these bands are referring back to something, what are the older versions of this kind of riff?

Like 13th Floor Elevators?

https://youtu.be/EsKny8WnktI

Or

https://youtu.be/QZw20sSiCyY

I mean, it's blues rock, isn't it?

First one sounds to me like Jorma's Kaukonen's playing in Jefferson Airplane, the other two not so much (cursory listens.) All three based on drones.

basically slowed-down Howlin' Wolf innit?

Thought it might have something to do with
Songs where a musician starts "ernie-ing"/summoning up the great musical god Ernie.

basically slowed-down Howlin' Wolf innit?

Slowed-down Hubert Sumlin technically

Thanks, folks!

First one sounds to me like Jorma's Kaukonen's playing in Jefferson Airplane

Or Big Brother.