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About Gordon Johnson

http://gordonjohnson.com

Attorney Gordon Johnson is one of the nations leading brain injury advocates. He is Past-Chair of the TBILG, a national group of more than 150 brain injury advocates. He has spoken at numerous brain injury seminars and is the author of some of the most read brain injury web pages on the internet.

Posts by Gordon Johnson:

Neurons – Core Brain Cell –  201

Neurons – Core Brain Cell – 201

Part 1 of 9 in the series Neuron and Axonal Tracts

Gordon Johnson:        Doctor, we’ve talked about specific divisions of the brain but the reality is that the brain is connected throughout the brain and there are networks and there are basic communication methodologies that the brain uses. The core to that is the neuron, is that right? Dr. Erin Bigler:            That’s correct. Gordon Johnson:        What’s(…)

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Size of a Neuron and Axon, Number of Neurons in Brain – 202

Size of a Neuron and Axon, Number of Neurons in Brain – 202

Part 2 of 9 in the series Neuron and Axonal Tracts

Gordon Johnson:        You have two arms. Dr. Erin Bigler:            Yes. Gordon Johnson:        And, we had a hard time getting – my elbow would be much more difficult to get in a position than yours. There are a few more neurons than that in the human brain. Dr. Erin Bigler:            Well some of the best studies,(…)

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Neuron Diagram – The Diagram of a Neuron 203

Neuron Diagram – The Diagram of a Neuron 203

Part 3 of 9 in the series Neuron and Axonal Tracts

Gordon Johnson:        Doctor, we talked about the neuron using your arm and fingers as a gross model of it and I want to now turn to what I consider, still another gross of model it, which is the diagram on your computer screen. Show us the same parts that you showed us with your hand(…)

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Function of the Neuron – 204

Function of the Neuron – 204

Part 4 of 9 in the series Neuron and Axonal Tracts

Gordon Johnson:        We have a graphic that actually shows the axonal tracts within the brain, is that correct? Dr. Erin Bigler:            Yes, we have various tools now from the imaging standpoint that actually allow us to look at what we have to call aggregate tracks. So it’s not the individual tract, it’s uh, a series(…)

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Understanding Gray Matter and White Matter – 205

Understanding Gray Matter and White Matter – 205

Part 5 of 9 in the series Neuron and Axonal Tracts

Gordon Johnson:        Doctor, I want to talk generally about two concepts that are fairly important in the general overview understanding of the brain. The first is the two different hemispheres that there are of the brain, and the second would be the difference between gray matter and white matter. I think on our diagram we(…)

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White Matter Equals Axonal Tracts – 206

White Matter Equals Axonal Tracts – 206

Part 6 of 9 in the series Neuron and Axonal Tracts

Gordon Johnson:        Doctor, we were talking about the interface between the gray matter and the white matter and the distinction between gray matter and white matter in the brain. Is this white matter that we’re looking at now? Dr. Erin Bigler:            This is white matter. Gordon Johnson:        Can you explain what it is we’re seeing?(…)

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Major Fiber Tracts In Brain – 207

Major Fiber Tracts In Brain – 207

Part 7 of 9 in the series Neuron and Axonal Tracts

Gordon Johnson:        There are a number of major fiber tract areas but the one that is most often talked about is the corpus callosum, is that right? Dr. Erin Bigler:            Well, it’s the largest and it’s the part of the brain that’s easiest to separate out. Gordon Johnson:        And we can see it clearly in(…)

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Axonal Tract Identification – Name the Fasciculus – 208

Axonal Tract Identification – Name the Fasciculus – 208

Part 8 of 9 in the series Neuron and Axonal Tracts

Gordon Johnson:        Doctor, I took a few notes on a break of the fasciculus. And I probably said that wrong. But the word is fasciculus, correct? Dr. Erin Bigler:            Fasciculus. Gordon Johnson:        Fasic, fasis – Dr. Erin Bigler:            Fasciculus. Gordon Johnson:        Fasciculus. And I won’t say it again. But we have the uncinate fasciculus. Dr.(…)

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Axon Tractography – 209

Axon Tractography – 209

Part 9 of 9 in the series Neuron and Axonal Tracts

Gordon Johnson:        Doctor, we’ve been talking about the importance of the communication network within the brain, and we talked about the specific fasciculi on our last slide. What we have now is an actual three-dimensional movie of all of those axonal tracts put together. Can you play that movie for us, and kind of explain(…)

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Understanding Severe Brain Injury Pathology – 301

Understanding Severe Brain Injury Pathology – 301

Part 1 of 14 in the series Severe Brain Injury Pathology

Gordon Johnson:        Doctor, I’d now like to talk, begin the discussion about, neuropathology.  We’re still looking at the DTI image. And perhaps ,as I want to start with severe brain injury and then we’ll go on to mild. perhaps we should change our images or at least our conversation to discussions that are specific to(…)

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Understanding Intracranial Pressure 302

Understanding Intracranial Pressure 302

Part 2 of 14 in the series Severe Brain Injury Pathology

Gordon Johnson:        Let’s talk a minute about the volume of the skull. We go back to the skull. And I always have a challenge putting these back together. There is a certain amount of volume of fluids that can held inside this skull, is that right? Dr. Erin Bigler:            That is correct. Gordon Johnson:        And(…)

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Epidural Hematoma and Epidural Hemorrhage 303

Epidural Hematoma and Epidural Hemorrhage 303

Part 3 of 14 in the series Severe Brain Injury Pathology

Gordon Johnson:        Let’s see if we can take one of our brain models and sort of demonstrate the concept of first of the epidural bleed. Perhaps if we take one of the, the still intact brains. Dr. Erin Bigler:            So now this brain doesn’t have a cerebellum, but so an epidural hematoma is occurring on(…)

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Subdural Hematoma and Subdural Hemorrhage – 304

Subdural Hematoma and Subdural Hemorrhage – 304

Part 4 of 14 in the series Severe Brain Injury Pathology

Gordon Johnson:        Now in contrast to that, what we can see of the epidural bleed there can also be a subdural bleed, is that right? Dr. Erin Bigler:            That’s correct. Gordon Johnson:        Any I images of that you can show us? Dr. Erin Bigler:            Well, what, what occurred here though, this was the first scan,(…)

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Skull Fracture Doesn’t Necessarily Mean Catastrophic Brain Injury – 305

Skull Fracture Doesn’t Necessarily Mean Catastrophic Brain Injury – 305

Part 5 of 14 in the series Severe Brain Injury Pathology

Gordon Johnson:        Often times we think about a head injury as beginning with skull fracture. On our image we do have a skull fracture. But skull fracture is not necessarily a catastrophic injury. Dr. Erin Bigler:            No. Gordon Johnson:        Talk to me about skull fracture. Dr. Erin Bigler:            Well, skull fracture may actually absorb some(…)

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ICP Pressure Issues in Severe Brain Injury – 306

ICP Pressure Issues in Severe Brain Injury – 306

Part 6 of 14 in the series Severe Brain Injury Pathology

Gordon Johnson:        Doctor, I now would like to talk about what happens with brain swelling, hematomas and the increase of pressure associated with these severe brain injury events. Dr. Erin Bigler:            Well, if we look at this case again, this patient has some severe intracranial pressure that’s occurring here, and this was a very significant(…)

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Vasculature Issues in Severe Brain Injury – 307

Vasculature Issues in Severe Brain Injury – 307

Part 7 of 14 in the series Severe Brain Injury Pathology

Gordon Johnson:        Doctor, in order to understand the concepts of what’s really going on with brain swelling and the damage that occurs as a result of increased pressure in the brain, I think it’s helpful if we talk about blood flow in and out of the skull. To do that we’ve got a new model(…)

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Pathology of Brain Bleeds 308

Pathology of Brain Bleeds 308

Part 8 of 14 in the series Severe Brain Injury Pathology

Gordon Johnson:        When there’s a bleed, and if we’re talking about just on the internal brain aspect of it, that blood, basically gets stuck there. There’s no more oxygen, and ultimately that becomes a toxin, is that right? Dr. Erin Bigler:            That’s correct. Gordon Johnson:        Also, it starts to pool and create one of these(…)

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Goals of Neurosurgery After Severe Brain Injury – 309

Goals of Neurosurgery After Severe Brain Injury – 309

Part 9 of 14 in the series Severe Brain Injury Pathology

Gordon Johnson:        Let’s talk about the realistic objectives and goals of neurosurgery. What is the surgeon able to do to reverse hemorrhages, hematomas, brain swelling? Dr. Erin Bigler:            Well neurosurgical advances in my lifetime have completely revolutionized the ability to care for acute brain injury. When I finished my Ph.D., a large majority of those(…)

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