Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Supported by

[open] How to record TTL from MRI ?

edited September 2014 in OpenSesame

Hi expert and O.S. users,

We would like to use OpenSesame for the first time to build a fMRI experiment. Since we have to change our presentation computer, we wonder what sort of ports we need…
Our experiment needs:
- to send video and audio and a TTL to an external device,
- to receive input from the response button and TTL from fMRI.

Our SR box (NNL) use a USB connection
The TTL from MRI can connected to the PC by a parallel port or another port as we want.
If we well understood the tutorial, the TTL toward an device could be sent by way of the parallel port.

The perfect PC would have at least: windows ; parallel port (TTL output) ; serial port (TTL input) ; USB (SR box).
Thus, OpenSesame would be able to manage our experiment, right ?

but it would be easier to have a laptop (so without all these ports) :
1/ Is there another way to sent the TTL (serial? USB?)
2/ Is it safe to use the USB as an emulation of the serial port ?

Every tips and hints about our installation would be nice !
thank you

Isabelle
PhD
NeuroPain from France

Comments

  • edited 6:11AM

    Hi Isabelle,

    I believe @sebastiaan has answered this one already, so you might have seen his answer before (and you might have replied), but it was lost due to a server malfunction.

    As far as the MRI scanner goes: I believe most TTL pulses are still sent via either parallel or serial ports. So it would be good to have a PC with both of those. OpenSesame allows you to communicate with these ports, using the parallel and the serial plug-ins.

    As you say, there are USB connections that emulate a serial port (OpenSesame can communicate with these in the same way as you would with a normal serial port). Whether there are timing issues with these, I would not be able to tell you. I would imagine that these are in the order of milliseconds, so even in an event-related fMRI design you should be ok. But please do check with the manufacturers of these products, and preferably with one or more MRI geeks as well!

    Good luck!

  • edited 6:11AM

    Hi !
    Thank you Sebastiaan and Edwin.
    So I can read and send trigger on both parallel and serial port with OpenSesame. Good point.
    I wanna check all devices…
    thanks again.
    Isabelle

Sign In or Register to comment.

agen judi bola , sportbook, casino, togel, number game, singapore, tangkas, basket, slot, poker, dominoqq, agen bola. Semua permainan bisa dimainkan hanya dengan 1 ID. minimal deposit 50.000 ,- bonus cashback hingga 10% , diskon togel hingga 66% bisa bermain di android dan IOS kapanpun dan dimana pun. poker , bandarq , aduq, domino qq , dominobet. Semua permainan bisa dimainkan hanya dengan 1 ID. minimal deposit 10.000 ,- bonus turnover 0.5% dan bonus referral 20%. Bonus - bonus yang dihadirkan bisa terbilang cukup tinggi dan memuaskan, anda hanya perlu memasang pada situs yang memberikan bursa pasaran terbaik yaitu http://45.77.173.118/ Bola168. Situs penyedia segala jenis permainan poker online kini semakin banyak ditemukan di Internet, salah satunya TahunQQ merupakan situs Agen Judi Domino66 Dan BandarQ Terpercaya yang mampu memberikan banyak provit bagi bettornya. Permainan Yang Di Sediakan Dewi365 Juga sangat banyak Dan menarik dan Peluang untuk memenangkan Taruhan Judi online ini juga sangat mudah . Mainkan Segera Taruhan Sportbook anda bersama Agen Judi Bola Bersama Dewi365 Kemenangan Anda Berapa pun akan Terbayarkan. Tersedia 9 macam permainan seru yang bisa kamu mainkan hanya di dalam 1 ID saja. Permainan seru yang tersedia seperti Poker, Domino QQ Dan juga BandarQ Online. Semuanya tersedia lengkap hanya di ABGQQ. Situs ABGQQ sangat mudah dimenangkan, kamu juga akan mendapatkan mega bonus dan setiap pemain berhak mendapatkan cashback mingguan. ABGQQ juga telah diakui sebagai Bandar Domino Online yang menjamin sistem FAIR PLAY disetiap permainan yang bisa dimainkan dengan deposit minimal hanya Rp.25.000. DEWI365 adalah Bandar Judi Bola Terpercaya & resmi dan terpercaya di indonesia. Situs judi bola ini menyediakan fasilitas bagi anda untuk dapat bermain memainkan permainan judi bola. Didalam situs ini memiliki berbagai permainan taruhan bola terlengkap seperti Sbobet, yang membuat DEWI365 menjadi situs judi bola terbaik dan terpercaya di Indonesia. Tentunya sebagai situs yang bertugas sebagai Bandar Poker Online pastinya akan berusaha untuk menjaga semua informasi dan keamanan yang terdapat di POKERQQ13. Kotakqq adalah situs Judi Poker Online Terpercayayang menyediakan 9 jenis permainan sakong online, dominoqq, domino99, bandarq, bandar ceme, aduq, poker online, bandar poker, balak66, perang baccarat, dan capsa susun. Dengan minimal deposit withdraw 15.000 Anda sudah bisa memainkan semua permaina pkv games di situs kami. Jackpot besar,Win rate tinggi, Fair play, PKV Games