Neuroscience

The brain may actively forget during dream sleep

Rapid eye movement, or REM, sleep is a fascinating period when most of our dreams are made. Now, in a study of mice, a team of Japanese and U.S. researchers show that it may also be a time when the brain actively forgets. ...

Psychology & Psychiatry

Coming out about mental health on social media

Susanna Harris was sitting in her lab class for her graduate program at the University of North Carolina at Chapel Hill when she received an email that told her she had failed what she describes as "the most important exam ...

Psychology & Psychiatry

Research on mental health following environmental disasters soaring

New research led by the Yale School of Public Health finds that the number of studies on how environmental disasters affect mental health has increased dramatically and that they consistently find strong associations with ...

Neuroscience

Receptor protein in brain promotes resilience to stress

Scientists have discovered that a receptor on the surface of brain cells plays a key role in regulating how both animals and people respond to stress. The research suggests that the receptor may represent an important biomarker ...

Neuroscience

Simple blood test unmasks concussions absent on CT scans

Many patients with concussion have normal CT scans and are discharged from the hospital without follow-up. But a blood test that is currently under development and costs a fraction of the price of a brain scan may flag concussion ...

Neuroscience

Learning how memory works could be key to treating PTSD

Think back to what you did last weekend. You might be able to picture it clearly, but there should be no doubt in your mind that whatever you are remembering happened in the past. For people with post-traumatic stress disorder ...

Oncology & Cancer

PTSD linked to increased risk of ovarian cancer

Women who experienced six or more symptoms of post-traumatic stress disorder (PTSD) at some point in life had a twofold greater risk of developing ovarian cancer compared with women who never had any PTSD symptoms, according ...

Medical research

Lab's marketing challenge: Recruit veterans for PTSD study

To prove that a medical treatment works, scientists must run not just one human trial but several. This poses a challenge that many scientists aren't formally trained to tackle: Recruit hundreds of participants through elaborate ...

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Posttraumatic stress disorder (PTSD) is a severe anxiety disorder that can develop after exposure to any event that results in psychological trauma. This event may involve the threat of death to oneself or to someone else, or to one's own or someone else's physical, sexual, or psychological integrity, overwhelming the individual's ability to cope. As an effect of psychological trauma, PTSD is less frequent and more enduring than the more commonly seen acute stress response. Diagnostic symptoms for PTSD include re-experiencing the original trauma(s) through flashbacks or nightmares, avoidance of stimuli associated with the trauma, and increased arousal—such as difficulty falling or staying asleep, anger, and hypervigilance. Formal diagnostic criteria (both DSM-IV-TR and ICD-10) require that the symptoms last more than one month and cause significant impairment in social, occupational, or other important areas of functioning.

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