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Aug 18, 2021 · One recent investigation in primates showed that a circuit involving the area commonly known as the brain’s emotional center, the amygdala, and a region of the brain responsible for higher thought named the medial prefrontal cortex (mPFC) might underlie fear learning.
- 3 min
Feb 9, 2018 · Here we examined previously unexplored brain oscillatory responses to characterize the neurodynamics and connectivity during brief (~250 ms) and longer (~883 ms) exposures of fearful faces with...
- Cody A. Cushing, Hee Yeon Im, Reginald B. Adams, Noreen Ward, Daniel N. Albohn, Troy G. Steiner, Kes...
- 2018
Mar 8, 2016 · Optogenetic induction of prefrontal 4-Hz oscillations coordinates prefrontal–amygdala activity and elicits fear behavior. These results unravel a sustained oscillatory mechanism mediating prefrontal–amygdala coupling during fear behavior.
Feb 15, 2016 · During fear behavior, prefrontal 4-Hz oscillations lead amygdala and synchronize spiking activity between the two structures.
- Nikolaos Karalis, Cyril Dejean, Fabrice Chaudun, Suzana Khoder, Robert R Rozeske, Hélène Wurtz, Soph...
- 2016
Feb 15, 2021 · The present study capitalizes on the Activation Likelihood Estimation (ALE) method of meta-analysis to identify: (a) the “core” network of fear processing in healthy individuals; (b) common and specific neural activations associated with explicit and implicit processing of fear.
- Di Tao, Zonglin He, Yuchen Lin, Chang Liu, Qian Tao
- 2021
Sep 17, 2020 · According to recent studies, your brain learns and expresses fear at a certain brainwave frequency, and changing the frequency can change the feeling. Researchers found that the brainwave frequency of fear is four cycles per second, or 4 hertz.
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Could a brain circuit underlie fear learning?
Does optogenetic induction of prefrontal 4-hz oscillations elicit fear behavior?
Are 4-hz oscillations a physiological signature of fear memories?
Are there fear circuits in the human brain?
What causes a fear reaction?
How fast does fear deflection occur in the amygdala?
Aug 1, 2016 · There was a main effect of spatial frequency from 206–240 ms (cluster threshold P < 0.01) and an emotion by spatial frequency interaction from 290–334 ms (cluster threshold P < 0.05).