Researchers have identified a pre-programmed neural circuit in the basolateral amygdala of mice that processes both positive and negative stimuli.
The more a person experiences severe depression through their lifespan, the less they react emotionally to negative faces during current depressive episodes.
Daily release of glucocorticoids depends on coordination between the clock gene and activity rhythms of neurons within two parts of the hypothalamus.
Withdrawal from psychostimulants including methamphetamines, cocaine, and nicotine, produced restructuring of brain regions and major increases in functional connectivity, a new mouse study reveals.
New findings reinforce the idea that dementia with Lewy bodies can be pathologically classified as two different and distinct disease types.
The function of the opioid system is connected to eating triggered by external stimuli. The findings could lead to the development of new therapies that target the opioid system to reduce obesity.
Heightened states of arousal altered neural circuits in a brain area associated with decision making, resulting in some neurons changing from decision making to internal state monitors.
Regardless of symptom severity, otherwise healthy young people diagnosed with COVID-19 develop abnormalities with the system that governs the fight-or-flight response in the sympathetic nervous system.
Study reveals how the amygdala plays a role in prepulse inhibition by activating inhibitory neurons in the brain stem of mice. The findings could have positive implications in the development of treatments for schizophrenia, OCD, and other disorders marked with impaired somatosensory gating.
The central amygdala isn't only the hub for fear response in the brain, it also contains microcircuits that regulate the suppression of fear response.
Saturated fatty acid levels rise in the brain during the formation of new memories, researchers say. The highest levels of saturated fatty acids were found in the amygdala, an area of the brain associated with fear and emotional memories.
The "fight or flight" response in those who sleepwalk is significantly lower than in those who sleep soundly at night.
