Insurers are starting to cover TMS for depression (after determining that SSRIs or other medications aren’t working for the patient). A full course, 24-36 treatments, of TMS can cost well over $10k. Though this is purely conjecture on my part, one way tDCS might make it into the mainstream is as a method to ‘top up’ post-TMS treatment as effects begin to fade.
Published on Jun 19, 2017 | YouTubeUCLA
As the number of people suffering from depression rises, doctors are looking for new, more targeted ways to treat it. One approach used by doctors at UCLA and a handful of other centers nationwide is to beam magnetic pulses deep into patients’ brains, a therapy known as transcranial magnetic stimulation (TMS). The therapy is time-consuming, and only a few hospitals or clinics offer it, but its ability to work in a fundamentally different way from medications is also what makes it so promising for people not helped by drugs.
For me this insight (that Dr Fried observed a specific memory attached to a single neuron spike) suggests the question: What about smaller electrodes? Current would have to be reduced to match the proven safety of larger electrode/currency-densities, but if a memory can associate to a single neuron perhaps there are novel hypotheses to be explored using tDCS.
Scientists can, as Dr. Fried did, see a single neuron spiking. There are fancy machines, fMRI scans, that can take fuzzy pictures of whole neighborhoods of hundreds of thousands of neurons being active. But if we want to see a memory of Jennifer Aniston forming in my head, first as two, then four, then ten, then 50, then 100, then 1,000 neurons flashing messages to each other forming a pattern — that we can’t see. We haven’t the tools.
The way to do it, says Seung in his new book Connectome is we should build a brain map. This map should let us see each and every neuron in a bit of my brain, the bigger the neighborhood, the more we will see. One day Seung would like to map an entire human brain, that’s 80 billion neurons with roughly a 100 trillion connections between them.