A stream-of-consciousness science podcast. Hosted by Kristen A. Ruka, Ph.D. and Nathan A. Libby, A.D.D. (EXPLICIT CONTENT)
info_outline #Amish4Lyfe [Sympathetic vs. Parasympathetic] 09/21/2020
#Amish4Lyfe [Sympathetic vs. Parasympathetic] Does listening to Headshake activate your fight or flight response? Or maybe it leaves you comfortably in your rest and digest state. Ruka and Libby talk about the differences between these systems while planning Libby’s self-eulogized Viking funeral.
info_outline Kooky Monkey Brains [Sleep Paralysis] 08/24/2020
Kooky Monkey Brains [Sleep Paralysis] Libby and Ruka learn about the strange but harmless experience of being awake and not being able to move. This episode is brought to you by the letter P and delicious chocolate frosted Kooky Monkey Brains: “They’re mentally delicious.”
info_outline Part2itary [Hypothalamus and Anterior Pituitary] 08/10/2020
Part2itary [Hypothalamus and Anterior Pituitary] In an attempt to recover from the last episode’s derailment by boy bands, Ruka speeds through an overview of the hypothalamus and the anterior pituitary. In the process, she discovers Libby’s deep past with the movie Cool Runnings.
info_outline Turkey Saddle [Hypothalamus and Posterior Pituitary] 07/27/2020
Turkey Saddle [Hypothalamus and Posterior Pituitary] A discussion of the hypothalamus and posterior pituitary gets derailed when Libby uncovers Ruka’s painfully comprehensive reserve of 2000’s boy band knowledge.
info_outline Art or Nart? [AI Predicts Art Preferences] 07/13/2020
Art or Nart? [AI Predicts Art Preferences] Libby and Ruka use their artificial artificial intelligence to discuss how actual artificial intelligence helps researchers understand the ways the human brain values art. Celebrate their first in-person recording in eight episodes!
info_outline Sputnik Ganglia [with Dr. Theanne Griffith] 06/29/2020
Sputnik Ganglia [with Dr. Theanne Griffith] It’s Headshake’s first guest ever! Theanne Griffith, Ph.D. joins as a third host to discuss her neuroscience research on specialized ion channels in cold sensation, as well as her brand new STEM-themed children’s book series The Magnificent Makers!
info_outline Ball Change [Somatosensation] 06/15/2020
Ball Change [Somatosensation] Can you feel it? Your pointer finger can. After a visit to the land of Complicatia, Libby and Ruka return to Gap Junction to discuss somatosensation and ask important personal questions about the little man living in your cortex.
info_outline Brain LIGHTNING! [Electrophysiology] 06/01/2020
Brain LIGHTNING! [Electrophysiology] Your body isn’t strung with copper wire. So how does the nervous system send electrical signals? Libby and Ruka discuss this question and attempt to do math. When you’re done listening, remember to write that letter to your Nana Amps. She misses you.
info_outline CORVID-19 [Rodent Operated Vehicles] 05/18/2020
CORVID-19 [Rodent Operated Vehicles] Fast cars, Froot Loops, and poops! This episode has it all, brought to you by psychology researchers who put rats in little rat-sized cars. Spoiler: Rats are better at learning how to drive if they’ve played with more toys and friends.
info_outline EXTRA: The Hole Truth 04/24/2020
EXTRA: The Hole Truth BONUS EPISODE! Ruka scored an EXCLUSIVE interview with the famous supermassive black hole M87*, the first ever black hole to be imaged on Earth only one year ago. Recorded in front of a live remote audience. Interview begins at 10 min 57 sec.
info_outline Blue Light Special [Circadian Rhythms] 04/20/2020
Blue Light Special [Circadian Rhythms] With many of our routines upended these days, our circadian rhythms are getting thrown off, causing what is known as social jet lag. Don’t get too sleepy listening to the soothing sounds of the second remote recording from Libby and Ruka.
info_outline Velocirapture [Vestibular System] 04/06/2020
Velocirapture [Vestibular System] Motion sickness on a pre-apocalyptic cruise prompted Ruka to reflect extensively on the vestibular system. She talks with Libby about this sixth sense and how it affects the body’s balance, movement, and vision.
info_outline Avogadro's Toast [Gray Matter vs. White Matter (Mostly Corrections)] 03/23/2020
Avogadro's Toast [Gray Matter vs. White Matter (Mostly Corrections)] This episode is beefy. It has A LOT of corrections/clarifications from Episodes 2, 3, and 4. Don’t worry, Ruka and Libby eventually get around to discussing gray vs. white matter. Learn about the little sweaters knit by your Grandma Glia.
info_outline A Reptile Dysfunction [Performance Anxiety] 03/09/2020
A Reptile Dysfunction [Performance Anxiety] Theater is where Libby and Ruka met. It is also where the lizard brain causes stage fright. Learn about recent research into a strategy using an electromagnetic current as a possible tool to reduce performance anxiety.
info_outline It’s Halloween Somewhere [Cerebrospinal Fluid] 02/24/2020
It’s Halloween Somewhere [Cerebrospinal Fluid] This episode goes to eleven on spinal taps and cerebrospinal fluid. Travel back in time to 2019, when Ruka and Libby recorded an episode for the first time. It was so long ago, the show didn’t have a title or an Old West word of the day. Happy Halloween!
info_outline Two Humps [Moar Chemistry] 02/24/2020
Two Humps [Moar Chemistry] The hosts find themselves defending each other’s humps in the old west town of Gap Junction. Libby suffers chemical burns from the leftover cookie dough chemistry Ruka serves up. Ruka also makes corrections/clarifications on Episode 1. Libby tells a joke.
info_outline Big Animal = Big Poops [Neurochemistry] 02/24/2020
Big Animal = Big Poops [Neurochemistry] Welcome to Headshake! We’re thrilled (and surprised) you’re here! Today, Ruka tries to teach co-host Libby about neurochemical signaling (cookie dough chemistry). They also explore each other’s knowledge holes.