General Methods and Intro to TMS - TMS
16 important questions on General Methods and Intro to TMS - TMS
When is TMS casual?
What pulse does the injection of “neural noise” approach use?
Explain the injection of “neural noise” approach experiment 1
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Findings of the injection of "neural noise" approach experiment 1
- Because that’s the time the information arrives at the primary visual cortex. So, when you stimulate it, people have trouble reporting the letters because the neurons are busy firing.
Findings of the injection of "neural noise" approach experiment 2
Showed that everything that's presented on the left hemifield will end up on the right side of the primary visual cortex and everything that's presented on the right hemifield will turn up on the left
Explain the injection of “neural noise” approach experiment 3
Findings of the injection of "neural noise" approach experiment 3
Everything at the top of your visual field will end up at the bottom of the visual cortex, and the bottom of your visual field will end up in the upper region of the primary visual cortex.
What is Repetitive TMS (rTMS)
- If you want to know if a brain region is involved in a more complex task, eg. calculating, or making a decision, that usually it takes a bit longer — you can’t use TMS
- TMS is a technique where you have one single pulse that really disrupts processing for a brief moment in time
- Use a weaker stimulation, but you do it for a longer period of time
For rTMS, do you do it when people perform the task?
Idea: you get a lot of neurons to fire at random for a long time. So it will take quite a long time for that brain region to actually recover and go back to baseline (normal functioning).
How many pulses does “probing excitability” approach use?
In the “probing excitability” approach, how do you test the excitability of the primary motor cortex?
Is the probing excitability TMS approach casual?
Explain Bode et al. study (i.e., what did they look at?)
Findings of Bode et al. Study
What pulse does the “probing information transfer” approach use?
What is the “probing information transfer” approach?
First pulse: sub-threshold
Second pulse: supra-threshold
The question is how strongly the first pulse influences the effect of the second
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