Neuroscience

Brain recalls old memories via new pathways

People with anxiety disorders, such as post traumatic stress disorder (PTSD), often experience prolonged and exaggerated fearfulness. Now, an animal study suggests that this might involve disruption of a gradual shifting ...

Neuroscience

Low doses of psychedelic drug erases conditioned fear in mice

(Medical Xpress)—Low doses of a psychedelic drug erased the conditioned fear response in mice, suggesting that the agent may be a treatment for post-traumatic stress disorder and related conditions, a new study by University ...

Neuroscience

Scientists discover a new pathway for fear deep within the brain

Fear is primal. In the wild, it serves as a protective mechanism, allowing animals to avoid predators or other perceived threats. For humans, fear is much more complex. A normal amount keeps us safe from danger. But in extreme ...

Neuroscience

How the brain encodes time and place

When you remember a particular experience, that memory has three critical elements—what, when, and where. MIT neuroscientists have now identified a brain circuit that processes the "when" and "where" components of memory.

Neuroscience

Researchers find amygdala not always necessary for fear

(Medical Xpress)—Researchers at the University of Iowa have found that three volunteer women with defective amygdalas were able to experience internal fear. In their paper published in the journal Nature Neuroscience, the ...

Medical research

Unlocking the molecular mechanism of PTSD treatment

Post-traumatic stress disorder (PTSD) is a difficult-to-cure mental health condition that is caused by experiencing a traumatizing event, such as interpersonal violence or disaster. While sufferers of PTSD have existed across ...

Psychology & Psychiatry

Fear, safety and the role of sleep in human PTSD

The effectiveness of post-traumatic stress disorder (PTSD) treatment may hinge significantly upon sleep quality, report researchers at the University of California, San Diego School of Medicine and Veterans Affairs San Diego ...

Psychology & Psychiatry

Oxytocin helps to better overcome fear

Frightening experiences do not quickly fade from memory. A team of researchers under the guidance of the University of Bonn Hospital has now been able to demonstrate in a study that the bonding hormone oxytocin inhibits the ...

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