"brain substance" is correct and usable in written English.
It can be used to refer to the physical matter that makes up the brain, typically grey matter or neural tissue. For example, "The brain is made up of a complex array of neurons and other brain substance."
He conjures an eclectic, intellectually charged time when a Hungarian anatomist gave lectures to artists, explaining that with "a drop of blood, a little bit of brain substance, you will be transported to a fairy-tale world".
Now, researchers in Israel and New York report that they have been able to strengthen memories formed well in the past, using a brain substance involved in anchoring and maintaining the memory in the first place.
In a paper published several weeks earlier, however, researchers at Mount Sinai School of Medicine showed that they could make a specific memory last a long time — again, by using a brain substance involved in the initial learning.
Alcoholics, especially older ones, frequently experience enlargement of the ventricles as a result of atrophy of brain substance caused in part by the direct effects of alcohol on the central nervous system.
The sensory pathway in the reflex arc leads as far as the cerebral cortex because removal of the occipital cortex (the outer brain substance at the back of the head) abolishes reflex eye movements in response to light stimuli.
Neurological changes occur, including a slowing of nerve-conduction velocity, a loss of brain substance, a reduction in the amount of deep sleep and an increase in the number of brief arousals, and a decrease in cerebral blood flow.
The neurobiology of addiction should include where in the brain substances of abuse act, how they cause intoxicating effects and how they alter the brain when used chronically.
Development of the vaccine is based on the theory that the body's immune system can be stimulated to attack beta-amyloid plaque in the brain, a substance that is associated with Alzheimer's.
We were there to represent those who are continuously surviving with a brain disease, substance use disorder, or behavioral health challenge.
A 2012 report by the American Council on Education found that although many colleges are adding lounges, computer centers and veterans clubs, most are failing to train faculty and staff about such serious disorders as post-traumatic stress, brain injury, substance abuse and mental health issues.
Exclusion criteria were severe medical conditions, major mental disorders such as signs of organic brain disorders, substance use disorders, schizophrenia and bipolar affective disorders.
