MinuteEarth

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Thanks also to our supporters on https://www.patreon.com/MinuteEarth :
- Maarten Bremer
- Jeff Straathof
- Today I Found Out
- Tony Fadell
- Muhammad Shifaz
- Mark Roth
- Melissa Vigil
- Valentin
- Alberto Bortoni
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Our functional map of the brain has changed. Here's why.

Credits (and Twitter handles):
Script Writer: David Goldenberg (@dgoldenberg)
Script Editor: Emily Elert (@eelert)
Video Illustrator: Qingyang Chen
Video Director: Emily Elert (@eelert)
Video Narrator: Emily Elert (@eelert)
With Contributions From: Henry Reich, Alex Reich, Kate Yoshida, Ever Salazar and Peter Reich
Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder

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Like our videos?
Subscribe to MinuteEarth on YouTube: http://goo.gl/EpIDGd
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If you liked this week’s video, we think you might also like this:
A digitally remastered look at the injuries of Phineas Gage, history's most famous lesion patient: http://www.nejm.org/doi/full/10.1056/...

FYI: We try to leave jargon out of our videos, but if you want to learn more about this topic, here are some handy keywords to get your googling started:

Brain lesion: Damage to the brain caused by disease or injury.

Broca’s area: Region in the frontal lobe associated with speech production.

Fusiform face area: Structure near the back of the brain associated with facial recognition.

Hippocampus: Seahorse-shaped brain structure associated with memory formation.

Amygdala: Small brain structure associated with emotions and memories.

fMRI: An imaging procedure that measures brain activity by tracking changes associated with blood flow.
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References:

Rorden, C., Karnath, H. (2004). Using human brain lesions to infer function: a relic from a past era in the fMRI age? Nature Reviews Neuroscience 5 (812-819). Retrieved from http://www.nature.com/nrn/journal/v5/...

Barbey, A., Colom, R., Solomon, J., Kreuger, F., Forbes,C., Grafman, J. (2012). An integrative architecture for general intelligence and executive function revealed by lesion mapping. Brain,135 (1154-1164). Retrieved from http://brain.oxfordjournals.org/conte...

Yildirim, F., Sarikcioglu (2007). Marie Jean Pierre Flourens (1794–1867): an extraordinary scientist of his time. Journal of Neurology, Neurosurgery, and Psychiatry, 78(8) 852. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/arti...

Barbey, A. (2016). Personal Communication.

Rorden, C. (2016). Personal Communication.

Direct download: ME_93_-_Which_Parts_Of_The_Brain_Do_What.mp4
Category:general -- posted at: 10:00pm EDT

This video was supported by the Heising-Simons Foundation. To learn more, visit https://www.heisingsimons.org/

Thanks also to our supporters on https://www.patreon.com/MinuteEarth :
- Today I Found Out
- Maarten Bremer
- Jeff Straathof
- Mark Roth
- Tony Fadell
- Muhammad Shifaz
- Melissa Vigil
- Alberto Bortoni
- Valentin
___________________________________________

Credits (and Twitter handles):
Script Writer: Emily Elert (@eelert)
Script Editor: Rachel Becker (@RA_Becks)
Video Illustrator: Ever Salazar (@eversalazar)
Video Director: Emily Elert (@eelert)
Video Narrator: Emily Elert (@eelert)
With Contributions From: Henry Reich, Alex Reich, Kate Yoshida, Omkar Bhagat, Peter Reich, David Goldenberg
Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder

_________________________________________

Like our videos?
Subscribe to MinuteEarth on YouTube: http://goo.gl/EpIDGd
Get early, exclusive access to our videos on Vessel: https://goo.gl/hgD1iJ
Support us on Patreon: https://goo.gl/ZVgLQZ

Also, say hello on:
Facebook: http://goo.gl/FpAvo6
Twitter: http://goo.gl/Y1aWVC

And find us on itunes: https://goo.gl/sfwS6n
___________________________________________

If you liked this week’s video, we think you might also like this:
Fantastic Aurora: Inside the Sun to Earth's Poles https://youtu.be/N5utQxtma2U?t=3m1s

FYI: We try to leave jargon out of our videos, but if you want to learn more about this topic, here are some handy keywords to get your googling started:

Abiogenesis – the process of life arising from non-living matter, such as simple organic compounds.

Amino Acids – a class of organic compounds. Twenty of the roughly 500 known amino acids appear in the genetic code, and, when strung together into long chains, form the basic building blocks of proteins.

Faint Young Sun Paradox – describes the apparent contradiction between evidence for a warm ancient Earth, and stellar models, which predict that the young Sun was 25% dimmer than today's Sun. First described by Carl Sagan and George Mullen in 1972.

The Miller–Urey experiment – a landmark experiment in the 1950s in which scientists demonstrated that amino acids could form spontaneously from inorganic gases present in Earth's early atmosphere

Snowball Earth – a climatic state of Earth in which the entire surface becomes frozen over.

Molecules featured in this video:
- Carbon dioxide (CO2)
- Methane (CH4)
- Nitrous oxide (N20)
- Hydrogen cyanide (HCN)
- Amino acids (especifically threonine, valine, cysteine and methionine)
- Adenine (C5H5N5)
- Glycine (C2H5NO2)


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References:

Airapetian, V. S., Glocer, A., Gronoff, G., Hébrard, E., & Danchi, W. (2016). Prebiotic chemistry and atmospheric warming of early Earth by an active young Sun. Nature Geoscience Nature Geosci, 9(6), 452-455. doi:10.1038/ngeo2719

Earth's changeable atmosphere. (2016). Nature Geoscience Nature Geosci, 9(6), 409-409. doi:10.1038/ngeo2735

Feulner, G. (2012). The faint young Sun problem. Rev. Geophys. Reviews of Geophysics, 50(2). doi:10.1029/2011rg000375

Leconte, J., Forget, F., Charnay, B., Wordsworth, R., & Pottier, A. (2013). Increased insolation threshold for runaway greenhouse processes on Earth-like planets. Nature, 504(7479), 268-271. doi:10.1038/nature12827

Marchi, S., Black, B., Elkins-Tanton, L., & Bottke, W. (2016). Massive impact-induced release of carbon and sulfur gases in the early Earth's atmosphere. Earth and Planetary Science Letters, 449, 96-104. doi:10.1016/j.epsl.2016.05.032

Sagan, C., & Mullen, G. (1972). Earth and Mars: Evolution of Atmospheres and Surface Temperatures. Science, 177(4043), 52-56. doi:10.1126/science.177.4043.52

Wolf, E. T., & Toon, O. B. (2014). Delayed onset of runaway and moist greenhouse climates for Earth. Geophys. Res. Lett. Geophysical Research Letters, 41(1), 167-172. doi:10.1002/2013gl058376

Direct download: ME_94_-_The_Faint_Young_Sun_Paradox.mp4
Category:general -- posted at: 12:33pm EDT

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