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Sahib Khalsa Profile picture
Sahib Khalsa
@KhalsaLab
Psychiatrist and neuroscientist studying the role of interoception in mental health. Director of Clinical Operations, Laureate Institute for Brain Research.
Mar 13, 2022 • 13 tweets • 5 min read
Has anxiety ever taken your breath away? Wondered how your brain caused that to happen?
A brief🧵 In this review/theory paper led by Justin Feinstein @FloatResearch in a special issue on respiration in Biological Psychology, we highlight an interoceptive role for the amygdala in apnea-induced anxiety & inhibition of CO2-related fear doi.org/10.1016/j.biop…
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Feb 2, 2022 • 22 tweets • 8 min read
Ever wonder how physical sensations such as a racing heart give rise to fear? Using an adrenaline-like challenge during brain imaging we found that abnormal heart-brain communication contributes to increased fear in women with generalized anxiety disorder…ja.ma/3GmzcSH First, women with GAD showed a peripheral hypersensitivity to stimulation across all doses indicating that it took less adrenaline to make their hearts race than unaffected individuals… (2/n)