A strong, spatially uniform magnetic field aligns a small but significant fraction of the hydrogen nuclei of water molecules in the brain. A carefully controlled sequence of gradient fields and RF pulses is used to generate NMR signals that can be reconstructed to form a three-dimensional image in which contrast is dependent, in part, on the blood flow and/or oxygenation changes caused by neural activity. Thus, MRI can be used noninvasively to detect changes in local neural activity in the human brain.

Anxiety and Depression 101

Anxiety and Depression 101

Everything you ever wanted to know about. We have been discussing depression and anxiety and how different information that is out on the market only seems to target one particular cure for these two common conditions that seem to walk hand in hand.

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