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Does pupil dilation occur before insight?

Researchers have measured the human pupil upon gaining insight into an object. It is known that pupils dilate/narrow to adjust the amount of light entering the eye and that emotional state affects the extent of dilation/narrowing. This study indicates …

Stroke researchers confirm role of frontal lesions in response to prism treatment

Stroke researchers have confirmed that the presence of frontal cortical lesions moderated response to prism adaptation treatment after right-brain stroke.

Flow of cerebrospinal fluid regulates neural stem cell division

Stem cells in the brain can divide and mature into neurons participating in various brain functions, including memory. In a new study, scientists have shown how this works. They found that ion channels play a key role in mediating force signals to the …

Brain simulation reveals benefits of emergency cooling treatment

Fresh insight into how the brain responds to medically induced cooling — routinely used to limit head injury — could inform treatments for related conditions and help babies at risk of birthing complications.

How social isolation transforms the brain

Researchers gain new insights into the brain mechanisms underlying the negative effects caused by long-term social isolation.

Microglia are key defenders against prion diseases

Prion diseases are slow degenerative brain diseases that occur in people and various other mammals. No vaccines or treatments are available, and these diseases are almost always fatal. Scientists have found little evidence of a protective immune respon…

Psychopathy: What drives pathological selfishness?

We take a look at some of the neurological underpinnings of psychopathy and try to unravel the mystery of what goes on inside the brain of a psychopath.

Brain abnormality indicates general risk for mental illness

A new study reports an abnormality in visual regions of the brain that is associated with a person’s general risk for mental illness. The findings indicate a signature abnormality shared between common forms of mental illness, which could help clinicia…

Mechanism underlying malformation associated with severe epilepsy is revealed

Study suggests dysregulation of gene NEUROG2 could be linked to development of focal cortical dysplasia, one of the most common causes of drug-resistant epilepsy. NEUROG2 is involved in cell differentiation and, when overexpressed, it maintains the neu…

Smarter brains run on sparsely connected neurons

The more intelligent a person, the fewer connections there are between the neurons in his or her cerebral cortex, according to a new study performed using a specific neuroimaging technique that provides insights into the wiring of the brain on a micros…