Psychology & Psychiatry

Reducing anxiety and stress with pupil feedback

Our pupils are a mirror of our state of arousal: they dilate when we are tense, stressed or even panicky, and constrict when we calm down. Key to this is an area of the brain measuring about 15 millimeters: a nucleus in the ...

Neuroscience

Scientists record powerful signal in the brain's white matter

The human brain is made up of two kinds of matter: the nerve cell bodies (gray matter), which process sensation, control voluntary movement, and enable speech, learning and cognition, and the axons (white matter), which connect ...

Alzheimer's disease & dementia

Q&A: Validating an MRI biomarker for early onset Alzheimer's disease

Alexandra Touroutoglou, Ph.D., and Bradford Dickerson, MD, neuroscientists in the department of Neurology at Massachusetts General Hospital, are the lead authors of a new study published in Alzheimer's & Dementia, The Sporadic ...

Psychology & Psychiatry

How decision-making mechanisms go awry in OCD brains

A new study from UNSW Sydney shows that teenagers with OCD experience deficits in decision making and behavioral control. This is linked to abnormal activity in an area of the brain called the orbitofrontal cortex (OFC). ...

Psychology & Psychiatry

Brain connectivity found to be disrupted in schizophrenia

Schizophrenia, a neurodevelopmental disorder that features psychosis among its symptoms, is thought to arise from disorganization in brain connectivity and functional integration. Now, a recent study in Biological Psychiatry: ...

Radiology & Imaging

Special probes improve ultrasound imaging in obese patients

Ultrasound is used to diagnose many diseases in the abdominal cavity. A new study conducted at the University of Leipzig Medical Center and supported by the Helmholtz Institute for Metabolism, Obesity and Vascular Research ...

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