Dr. Abraham Zangen
The MIT Technology Review article A Gentler Way to Jump-Start the Brain: Scientists in Israel are testing a noninvasive method to electrically stimulate neurons deep in the brain said
Electrically shocking the brain is often the only recourse for people suffering from severe, untreatable depression. While standard antidepressants have little effect on these patients, electroconvulsive therapy (ECT) can sometimes jump-start the brain, lifting people out of depression, at least for a while. But ECT can also carry some serious side effects, including seizures and memory loss.
Instead, Abraham Zangen, one of two inventors of Brainsway’s deep TMS approach, and his colleagues designed a new coil configuration that is able to excite neurons at a depth of four centimeters, using the same intensity of current used in standard TMS coils. Instead of a single coil generating a single magnetic field through the brain, Zangen has outfitted a helmet with a number of small coils, each producing a separate magnetic field. As researchers run a standard current through the helmet, the coils, which are connected in a series, produce multiple fields that add up, generating a much stronger magnetic field that goes deeper into the brain before dropping off.
Abraham Zangen, Ph.D. is Head, Department of Neurobiology, Weizmann
Institute of Science, Israel.
He is on the Editorial Board of
Brain Stimulation and holds patent
Transcranial magnetic stimulation system and methods.
Mood-altering drugs have become an unavoidable part of the modern
landscape. Whether they come in the form of medically-supervised
anti-depressants, or as illegal substances obtained on the street, these
drugs affect emotions by altering neurochemical and electrophysiological
activities of the brain. Impaired function of the brain reward system is
implicated in both depression and addiction, and these two states have
documented comorbidity. The neurochemical changes induced in the brain
as a result of these two conditions can be viewed as an expression of
brain plasticity.
His lab studies focus on these two
alterations in the
reward system: depression and addiction. His main goal is the study of
the mechanisms by which the brain reward system affects mood and
motivation by using animal models for depression and addiction. In
addition he seeks to develop new methods to examine neuronal processes
at
the root of depressive behavior and drug addiction, thereby finding new
treatments for these devastating disorders.
Abraham coauthored
Repeated Electrical Stimulation of Reward-Related Brain Regions
Affects
Cocaine But Not “Natural” Reinforcement,
Two Brain Sites for Cannabinoid Reward,
A Coil Design for Transcranial Magnetic Stimulation of Deep Brain
Regions,
Alterations in Endogenous Brain beta-Endorphin Release by Adrenal
Medullary Transplants in the Spinal Cord,
A Direct Chemical Interaction between Dynorphin and Excitatory Amino
Acids, and
High Serotonin and 5-Hydroxyindoleacetic Acid Levels in Limbic Brain
Regions in a Rat Model of Depression: Normalization by Chronic
Antidepressant Treatment.
Watch
Deep Magnetic Brain Stimulation and
Israeli scientists probe deeper into human brain to battle
depression.
Read his
latest bio information.