Can I record high-density sEMG with the ActiveTwo system?

High density surface EMG as described in the recent publications on the Biosemi site is possible with the addition of the sEMG accessories. The original model of the high density sEMG probe was made for ActiveOne, so the connector differed. The current version separates the electrode grid from the preamp as in: reusable grid sEMG preamplifier…

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Can I install ActiView on a Windows 10 computer?

You CAN install current versions of ActiView on Windows 10. But, before you do so, if the system was orignally delivered before January of 2017 you should update the firmware on the optical receiver / USB interface so that you do not have to go through the very long and arduous process of installing an…

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Where can I find the coordinates of the 128 channel caps based on the 5% system defined by Oostenveld and Praamstra?

The positions in these caps come from the Oostenveld and Praamstra 5% system.  See http://robertoostenveld.nl/electrode/ for background and for links to electrode coordinates in a variety of formats. Depending on what software you are using for analysis, we might be able to provide another file format. The Biosemi channel assignments (relating electrode labels to electrode sites in…

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What are the computer requirements for ActiveTwo?

ActiveTwo is provided with drivers and host data acquisition software for Windows and Mac computers, and drivers also exist for Linux. Note that certain applications, such as event-related potentials, often require a separate computer to run experimental control / stimulus delivery software. In brief, the computer requirements for the ActiView data acquisition software are: Operating…

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Is every TMS system EEG compatible?

Maybe.  There is no way the EEG system can harm the TMS system, but there are some TMS systems that are essentially useless with some EEG systems.  You need a a suitable combination of features in each to be successful at all in using TMS with EEG. Desirable attributes: Coils designed specifically for use with…

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Is every EEG system TMS compatible?

No.  There are a few special attributes that are required and others that are desirable. Required attributes: Inputs should be protected so that they are not damaged by the TMS pulse Frequency response on all channels should be from DC on the low end, since AC coupled inputs will “ring” when presented with a large…

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What is a Service Level Agreement (SLA)?

We know that nothing makes a laboratory more productive than well-maintained equipment and a staff that is well-trained in its use.  Take advantage of our service options to safeguard the investment you have made in our products. Support above-and-beyond warranty related issues is offered in the form of Service Level Agreements.  If there are no…

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Installation and training

When you purchase a new laboratory instrument, you want to get started using it and producing results as quickly as possible, and nothing helps you accomplish this goal faster than having a trained technician visit your lab to install the system and configure it optimally for your purposes. From our perspective, you will have the…

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Is quick turnaround available on new purchases or repairs?

We will always do our best to respond quickly when you need something urgently.  It helps us immensely if you plan ahead and give us a little advance warning if you foresee a deadline approaching by which you need parts, supplies or repairs to be complete. For new purchases, we can often pre-order goods for…

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What regions does Cortech sell to?

For most of the products we sell, our territory includes USA and Canada. For products we manufacture, we are able to see throughout the world, but we may put you in touch with a local or regional representative to ensure the most convenient customer experience for you.

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What size adhesive washer do I need?

The inside diameter of adhesive ring should be about the same size as, or larger than, the diameter of the electrode contact.  The inside diameter of the adhesive ring should not be larger than the outer diameter of the electrode housing.  The outside diameter minus the center hole determines how much surface area contacts the…

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How long will my order take to receive?

Complete systems and large orders of accessories may take 6-9 weeks for delivery except in special circumstances.  Many smaller accessory orders can be delivered within a few days or a couple of weeks, depending on whether the item is in stock in our US office.  Consumable supplies are normally in stock and ready to ship…

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How do I place an order?

If you are an established customer (have ordered from us in the past) then you can order via our website. If your institution / lab have an established account but you have never communicated with us by e-mail, you may need to use the Request Info form to let us know to add you to…

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