Since 1991, CEDRUS has developed innovative software and hardware that had impacted the psychology and psychophysiology research community. With products sold in over 80 countries, the company designed solutions including SuperLab, RB response pads, Lumina (response pads for fMRI), StimTracker, M-pod, C-pod, and the SV-1. Learn more about these solutions by reading below!

Stimulus Presentation & Response Devices


The Surperlab series by CEDRUS is the only software that can directly teach students and have them build experiments after a single lecture! Moreover, for complex experiments, it is the only software that does not require users to program – build experiments like staircase and visual thresholds with a point-and-click interface. With a SuperLab Remote subscription, users can develop runnable experiments with the SuperLab 6 so that participants can easily download and run the experiment anywhere around the world. This software is inclusive with support for text, pictures, audio, movies, self-paced reading, and text RSVP (Rapid Serial Visual Presentation). Moreover, it can also generate event markers via TTL or serial port. In addition, as a software that is input and output hardware supportive, users can efficiently revamp psychology experiments with RB response pads, Lumina fMRI response pads, SV-1 voice keys, C-pod, StimTrackers, and more!

Download this software to access more features including the latest SuperLab X6 that can transform research further with live integration of Tobii and SMI eye trackers so you can build gaze contingent experiments (learn more by clicking here). All in all, the SuperLab software entitles users with power features that can be applied with a simple user interface (no programming required!) including randomisation, feedback, stimulus lists, looping, parameters, and more! (click here for more details). With a range of classic and demo experiments freely available, classic experiments can come with a free downloadable lab book that describes the experiment, the paper that it’s based on, and results for your reference. Lastly, this software features the Data Viewer function that can automatically flag rows with outlier reaction times, e.g. anything greater than three standard deviations. Moreover, preview files simultaneously, view some basic combined statistics, and produce merged files with options to transpose data and omit flagged rows. Discover more details about the SuperLab series by clicking here!

RB Series Response Pads

With consistent improvements since 1993, the RB series response pads’ have since then become a popular choice with it’s latest fifth generation RB-x40 model that features better timing millisecond reaction time resolution, simplified design for better quality of RT data, and customisable key tops for efficiency and comfortability for participants. With each key layout for different applications (previewed below), each package is equipped with extensive software support (SuperLab, E-Prime, and etc.) and accessories including pre-installed white and clear key tops, colored key tops, USB cable, and a free wrist pad.


  • Wide Application support: compatible with SuperLab, E-Prime, Presentation, and others (i.e SuperLab, E-Prime, VSG, PsyToolkit, EyeLink Experiment Builder, Presentation plug-in, Inquisit, and PsychoPy)
  • Built-In I/O: It’s like getting a free I/O device that can send 8 bits of TTL output.
  • Library Support: Open source C++ and Python libraries available
  • USB compatible: with Mac OS, Windows, and Linux support available from third party.
  • Replaceable Key Tops
  • Light Sensor Support: Record precisely the onset of visual stimuli and even have it reset the built-in timer.



Lumina is a quality-built patient response system (i.e Button Response system, or BRU) that are designed for fMRI applications, with six models designed for strength and magnetically inert. Each key layout are designed for different applications including the LS-PAIR (most popular and general purpose model), the LS-RH (ergonomically larger pad), LS-3B (used in either hand), LS-THUMB (gaming-like design response pad), LS-DIAM (designed for experiments that involved spatial orientation), and the LS-Line (General purpose; also suitable for ratings and scales, e.g Likert). Lumina’s sturdy and fast controller captures patients’ button presses and the triggers generated by MR scanners, time-stamps them with a millisecond accuracy, and converts them into simultaneous USB port and parallel outputs. Similar with the RB series response pads, the Lumina shares extensive software support for users.


The StimTracker assists researchers to outline trends from biometric feedback seamlessly with a wide variety of capabilities including marking events, sync recorders in multimodal research, and more. By implementing markers on EEG, eye tracker or other types of biometric data is integral to mark when exactly certain events had transpired. Moreover, it can detect the onset of these events and send them to several recorders simultaneously. With the StimTracker, detect the onset of events and autonomously avoid operating system delays with the following types of events;

  • Onset of visual stimuli; fast light sensors included)
  • Onset of key response connect a response pad to mark participants input
  • Onset of external events; connect switches or TTL signals (Quad only)
  • Onset of auditory stimuli; play audio via StimTracker and let it do the rest 
  • Onset of vocal response; it’s like getting a free voice key device (Quad only)
  • Event Codes via USB; Send event codes from your stimulus software.

Incorporated with the m-pod, the StimTracker’s flexible, plug and play output can deliver signals to make it readily compatible with more than a dozen popular recorders. Moreover, the m-pod augments the StimTracker’s capabilities including; specific selection of which events are sent, reflective mode vs. single pulse mode, or enforce a minimum pulse duration (the quad model adds a direct TTL output). The StimTracker can be integrated with; ABM, iWorx, AD Instruments, Mangold, ANT Neuro, MindWare, BIOPAC, Neuroscan, Biosemi, NIRx, Bittium, Parrallel Port, Brain Products, SMI, CGX, Tobii, and EGI.

When sending event markers via USB, StimTracker delivers them with jitter free precision when used with SuperLab 6 or with our open source Python or C++ libraries. Moreover, delay guaranteed every time to be 2ms exactly. With a powerful 32-bit microprocessor running our software lets StimTracker send event markers via USB asynchronously. Without this feature, software that wants to send a 10ms long event marker has to pause execution for 10ms. In neuropsychology, psychophysiology, and other fields, this is too long of a pause. With StimTracker, the software sends a command and resumes other time-sensitive tasks – no pausing. There are other powerful features like a pulse scheduler and pattern generator; see Specifications.

With the a wide variety of stimuli including some audio stimuli that are computer generated tone, and others are recorded words or sentences. In addition, visual stimuli vary as well, as do the displays being used to present them. StimTracker includes powerful filtering options to handle all sorts of signals. Cedrus provides free software for setting the filter values, which StimTracker then stores in its flash memory.

Similar to other products designed by CEDRUS, StimTracker users can enjoy extensive software support with some packages that offer jitter free performance (i.e SuperLab 6, Inquisit, Python Library and C++ Library). Incorporated with CGX Systems and CEDRUS technology, they innovatived developed the Wireless StimTrigger that allows users to send event markers wirelessly and with high timing precision to all currently shipping CGX EEG devices. Each package is inclusive of the StimTracker (Duo or Quad), medically rated AC adapter, one white light sensor, one black light sensor, one audio cable, USB cable, and an m-pod model of your choice.

M-Pod & C-Pod Series

The M-Pod Series

The M-pod is the key bridge to your EEG, eye tracker, NIR and other research instruments by connecting to an RB response pad or Lumina 3G controller. This product simplifies data efficiently by overlaying on it participant key responses event markers, event markers sent via USB, and onset of visual stimuli event markers. The m–pod and response pad combination is an excellent value, providing the most sought-after features in StimTracker but for less.

M–pod is a true plug-and-play solution, delivered with everything required need to connect with any model of EEG, eye tracker, NIR, or other recording instrument (click here to find available manufacturers).

Selectively customise signals with the m-pod that can map any input signal to any output pin. In addition, combine any number of input signals to a single output pin and build your very own custom output table. No other I/O device offers this capability. Thanks to its speedy microprocessor, this translation power adds a minuscule 50µs delay. CEDRUS provides Xidon 2 (pronounced Zydon), a friendly app for Mac and Windows (currently in development) to easily enable checkboxes for the signals that you want.

M–pod is the key link between the Lumina or RB response pads on one side, and your EEG or eye tracker on the other side. Its operation is independent of the USB connection with the computer. You can even use your response pad in the less precise keyboard mode but still get very accurate event marking on your recording device. With m-pod model, it comes with the right connector size, gender, and pin assignments to streamline connecting to EEG, eye tracker, NIR, or other recording equipment. There are two LED lights on m–pod. The one on the right (🁢) indicates a connection to the response pad. The one on the left () lights up every time an event marker is sent.

The C-Pod Series

Similar with the M-Pod series, the C-pod overlays feedback with event markers however through USB connections affordably and with precision. With exactly 2ms of delay everytime, the C-pod delivers event markers with precision as it is jitter free when applied with CEDRUS open source Python or C++ libraries. This series is instantly compatible as it is delivered with everything required to connect your particular model of EEG, eye tracker, NIR, or other recording instrument. Find out what models are available for c-pod by clicking here.

Despite its portable size, the c-pod is empowered with a 32-bit microprocessor to encourage async output so users can deliver a 10ms marker while the app continues to work. It can be scheduled to send pulses at a later time, e.g. to mark emotional points during a movie presentation. In addition, the c-pod can be applied as a signal generator on an output line or as a more complex pattern generator.

The c–pod requires the installation of a USB driver (a five minute task), with each c–pod model comes with the right connector size, gender, and pin assignments. This makes it straightforward to connect to your EEG, eye tracker, or other recording equipment. There are two LED lights on c–pod. The one on the right (🁢) confirms a connection to the computer. The one on the left () lights up every time an event marker is sent. Find out more innovative features of the c-pod by clicking here.

SV-1 Voice Key

The SV-1 voice key measures the RT of participants’ vocal responses accurately as it monitors the participant’s voice level at all times, and when the level rises above a user-specified threshold, it reports this to the computer. SV-1 is powered by an 18 MHz microprocessor and is a 100% digital device. This devices boasts a wide application support, the SV-1 is compatible with SuperLab, E-Prime, Presentation, and others. In addition, it’s built-in I/O shares six TTL lines available for sending event markers. With CEDRUS library support, all SV-1 users can apply open source C++ and Python libraries to their discretion. The commands that SV-1 accepts are public. Cedrus publishes and maintains Python and C++ code libraries. Matlab support can also be found on the Internet. Lastly, the device is battery operated with an AC adapter as an alternative option.

During installation, the SV-1 uses an RS-232 serial port and the adapter requires the installation of a USB driver. A free USB-to-serial port adapter is included with every purchase. The analog frequency response is fairly flat over the range of 50Hz to 10kHz. That signal is rectified and filtered and the resulting envelope is used to trigger SV-1. The majority of the low frequency response is determined by the delay setting, e.g. 1kHz signal has a period of 1ms, yet it needs to be relatively immune to ‘P’ and ‘B’ sounds.