Examlex
The variance of the sum of two investments will be equal to the sum of the variances of the two investments plus twice the covariance between the investments.
Electrical Brain Stimulation
A method involving direct electrical stimulation of the brain to treat certain conditions, such as Parkinson's disease, or to study brain function.
Transcranial Magnetic Stimulation
A noninvasive procedure that uses magnetic fields to stimulate nerve cells in the brain to improve symptoms of depression.
Positron Emission Tomography
An imaging technique that uses radioactive substances to visualize and measure metabolic processes in the body.
Neuroscientists
Scientists who study the nervous system, including the brain, spinal cord, and neural networks.
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