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Ann Deschenes (Verticolo)
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Life, where it all begins! | La vie, où tout commence!
Life, where it all begins! | La vie, où tout commence!

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The brain’s fight and flight responses to social threat
A study published in eNeuro exploring the neural correlates of the ‘fight-or-flight’ response finds that people who choose to flee perceive a greater threat, which leads them to mentally and behaviorally disengage from the situation.

Macià Buades-Rotger and colleagues designed a Lord of the Rings-themed experiment in which 36 female participants competed as Frodo against two confederates playing as Sauron and Saruman in a reaction time task.

Participants could choose to avoid a limited number of encounters with their opponents by “putting the Ring on.” If they chose to stay and fight, they had to select the intensity of a sound blast (retaliation) that would be directed toward their opponent if the participant won the task by having a quicker reaction time. The task was set so that participants lost two-thirds of trials, and each opponent gave either high or low sound blasts.

The authors found that brain regions associated with thinking about the mental state of others were engaged when deciding to flee. However, when facing the highly provoking opponent, the “flight” response was associated with reduced activity in these regions and increased activity in the amygdala, indicating increased threat detection.

Journal article:
http://www.eneuro.org/content/4/3/ENEURO.0337-16.2017

Source & further reading:
https://www.eurekalert.org/pub_releases/2017-06/sfn-tbf062117.php

Image: When avoiding the highly provoking opponent there was increased activity in the amygdala and reduced activation in brain regions typically recruited when thinking about others’ feelings and intentions. This pattern suggests that avoidance is associated with enhanced threat detection and reduced perspective-taking.
Credit: Macià Buades-Rotger

#amygdala #neuroimaging #orbitofrontalcortex #prefrontalcortex #socialbehavior #neuroscience
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"Outlook in life changes everything", visionary GP champion, Freddie Spencer shares his view into Silverstone motoGP.
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Beware, safety first! Are you in the "path of totality?
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Primary Mirror JWST

Like some giant, golden space-butterfly, one wing of the Primary Mirror for the highly-advanced James Webb Space Telescope (JWST) is shown open in this picture, and another nearly so, as it is readied for the system's final cryogenic test before the planned launch of the JWST next year (2018).

📖🖼
To ensure the telescope's optics will operate at its frigid destination 1 million miles out in space, it must complete tests at cryogenic temperatures in a vacuum. The biggest and final cryogenic-vacuum test occurs in Johnson's Chamber A, the same vacuum chamber where Apollo spacecraft were tested. This test is critical in that it will verify the performance of the whole telescope as a system end-to-end at its extremely cold operating temperatures. Subsequently, the telescope will continue on its journey to Northrop Grumman Aerospace Systems in Redondo Beach, California, for final assembly and testing with the spacecraft bus and sunshield prior to launch in 2018.

More here: https://goo.gl/ZDr92T

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This video shows in-depth what will happen when James Webb Space Telescope deploys after launch. For more information, see this description on our website:
Video (YT ~5 mins.): https://goo.gl/Bms2Cx

Image (NASA/Chris Gunn): https://goo.gl/81GCQP
Explanatory text: https://goo.gl/jSCTq4
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