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Risk of psychotic disorders has disease-specific brain effects

Brain abnormalities in people at familial risk of schizophrenia and bipolar disorder emerge in unique patterns, despite the symptom and genetic overlap of the disorders, according to a new study. Similarities between schizophrenia and bipolar disorder …

Alzheimer’s drug reverses brain damage from adolescent alcohol exposure in rats

A drug used to slow cognitive decline in adults with Alzheimer’s disease appears to reverse brain inflammation and neuron damage in rats exposed to alcohol during adolescence.

A map of the brain can tell what you’re reading about

Neuroscientists have created interactive maps that can predict where different categories of words activate the brain. Their latest map is focused on what happens in the brain when you read stories.

Online brain games can extend in-game ‘cognitive youth’ into old age

A new study has found that online brain game exercises can enable people in their 70s and even 80s to multitask cognitively as well as individuals 50 years their junior. This is an increasingly valuable skill, given today’s daily information onslaught,…

Regulating blood supply to limbs improves stroke recovery

Cutting off and then restoring blood supply to a limb following a stroke reduces tissue damage and swelling and improves functional recovery, according to a new study.

Dopamine and serotonin: Brain chemicals explained

Dopamine and serotonin, or the ‘happy hormones,’ play key roles in mood, depression, and appetite, among other things. Learn about similarities, differences, and what happens when they are out of balance here.

Brain study probes molecular origins of anxiety

By studying young monkeys, scientists have identified the first of what they believe to be many brain molecules with a causal role in anxiety.

Optic nerve stimulation to aid the blind

Scientists are investigating new ways to provide visual signals to the blind by directly stimulating the optic nerve. Their preliminary study uses a new type of neural electrode and provides distinct signals.

Type of brain cell involved in stuttering identified

Researchers believe that stuttering — a potentially lifelong and debilitating speech disorder — stems from problems with the circuits in the brain that control speech, but precisely how and where these problems occur is unknown. Using a mouse model o…

Traumas change perception in the long-term

Adults who have experienced maltreatment as children have a changed perception of social stimuli. Traumatized people found touch stimuli less comforting than people who had not experienced trauma. They also maintained a greater social distance from str…