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Stress resilience, susceptibility traced to neurons in reward circuit

A specific pattern of neuronal firing in a brain reward circuit instantly rendered mice vulnerable to depression-like behavior induced by acute severe stress. The same firing pattern had the opposite effect when the depression-like behaviors were induced by chronic mild stress. Split-second control of the implicated circuit, via optogenetics, showed that context -- stressor type and intensity -- is pivotal to the workings of brain rapid antidepressant mechanisms.
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Very interesting.
I especially liked the jungle test in the fun tests.
- Dan Bierenga

All fun and informative tests,
I shared them with all my friends. Great way to better understand folks.
- Matthew McAvoy