New info on depression & brain circuitry

by Introspection 4 Replies latest watchtower medical

  • Introspection
    Introspection

    Did anyone else see this? I got this from someone from a list where a lot of them are experimenting with magnetic cranial stim, (on themselves) actually their stuff is low current with specific waveform patterns, sounds like a better way to go. From the LA Times:

    Research on Depression Focuses on Brain Circuitry

    Experts are learning more about the linking of cranial regions as well as predicting which patients will respond to drugs.

    At McLean Hospital in Belmont, Mass., brain researchers have hit upon what could become a new way to treat depression--blocking a brain chemical called dynorphin, the "evil cousin" of endorphin, which triggers the "runner's high."

    At UCLA, psychiatrists have modified the standard EEG (or electroencephalogram) to predict which depressed patients will get better with drugs and which won't--weeks before the patients can detect any changes in mood.

    At the University of Toronto, scientists are tracing the specific components of depression--sadness, distorted thinking, disturbed sleep--to separate, but linked, regions of the brain. In the process, they've found one key region in the "emotional brain," area 24a. If that's overactive, depressed people improve with drug therapy; if it's not, they won't. At Beth Israel Deaconess Medical Center in Boston, researchers are trying yet another approach--transcranial magnetic stimulation--that uses magnets placed on the scalp to stimulate the prefrontal lobes of the brain, which are often sluggish in depression.

    Depression, in other words, is no longer believed to be a mere deficiency of key brain chemicals--norepinephrine, dopamine and, perhaps most important, serotonin. Today, brain researchers view this common illness, which strikes about 19 million Americans, as a malfunction of particular circuits. Those circuits connect the limbic system, or "emotional brain," with the prefrontal cortex, or "thinking brain," and the brain stem and hypothalamus, which control basic functions such as sleep, appetite and libido.

    In truth, there never was much proof that depression was merely a serotonin deficiency. That was an inference from data showing that people who are aggressive or suicidal often have low serotonin, says Dr. Peter Whybrow, director of the neuropsychiatric institute at UCLA. And from data showing that if researchers deprived people of tryptophan, a substance from which the body makes serotonin, they quickly got very depressed.

    But now, despite the obvious efficacy of serotonin-boosting drugs such as Prozac, Zoloft and Paxil, it's clear that when a person is depressed, there's a lot more going wrong in specific areas of the brain than just low levels of serotonin.

    ----
    For the rest of the article see: http://www.latimes.com/news/science/la-000101735dec24.column?coll=la%2Dnews%2dscience

  • Thomas Poole
    Thomas Poole

    Electromagnetic Cranial Stimulation. Process used to enhance the mental alertness of cellular phone users sleeping in phone booths.

  • Eyebrow
    Eyebrow

    thomas..heehehe!

    When I first saw this post I thought it said "New Info on Depression and Brain CANDY"

  • Introspection
    Introspection

    Yeah, it's really all bad. Just like all talk is bad regardless of content and volume.

  • Eyebrow
    Eyebrow

    Actually, I read in Information week today that there is a study in Australlia going on where magnets are place on certain parts of the brain and the test subject is able to think more objectively for a short period of time. The study came about an severly austic girl was studied. Apparantly she can draw extremely detailed pictures although she seems to be unaware of her surroundings. (Fairly commen with many austic people.) Anyhoo, they were able to pinpoint what area of the brain controls subjectivity and found that those ares in her brain where not working correctly. So that is where they place the magnets.

    Freaky!

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