PEER

PEER 4 Adds Support for Brain Products' X.on mobile headset

PEER 4 supports the new Brain Products X.on 8-channel mobile EEG headset.

Brain Products Webinar: ERPs Anywhere

Watch the Brain Products webinar featuring Prof. Olav Krigolson demonstrating how to use the X.on headset and PEER app to take cognitive neuroscience research beyond the lab. The webinar covers how PEER and X.on enable researchers to conduct ERP experiments anywhere using an iPad or iPhone, with a comprehensive suite of fully customizable research paradigms.

PEER 4

Introducing PEER (Portable EEG ERP Researcher), the in-app ERP analysis tool that streamlines your research workflow. With PEER, you can analyze a participant's EEG data for an ERP paradigm as soon as data collection is completed with just a click of a button.

One Response Oddball N200 & P300 Analysis

Our software follows current ERP best practices and takes the raw EEG data and associated event markers for a task to generate conditional and difference ERP waveforms. First, the continuous EEG is preprocessed using techniques such as filtering, segmentation, baseline correction, and artifact rejection. Then, average ERP waveforms are generated, and a difference waveform is computed. Finally, the relevant ERP components for a given task are scored, and the components' amplitude and latency are displayed on screen. These results can be easily entered into statistical software such as SPSS or R to generate manuscript-ready results.

We understand the importance of accuracy in your research, which is why we have validated our analysis procedure to produce identical results to industry-standard tools such as Brain Vision Analyzer and EEGLAB. With PEER, you can trust that you are getting reliable and precise data analysis. Streamline your research workflow with PEER, the in-app ERP analysis tool that delivers accurate results with ease.

PEER ERP Paradigms for Comprehensive Research

PEER offers a comprehensive suite of ERP paradigms to allow researchers to study different aspects of cognitive processing. These include:

Visual Oddball: The traditional visual oddball task is available in three versions - no response, single response, and dual response - providing flexibility to tailor the task to your research question. The paradigm is designed to elicit the N200 and P300 ERP components, critical to cognitive and attentional processes.
Audio Oddball: Three versions of the audio oddball paradigm - no response, single response, and dual response - are also available to facilitate auditory cognitive research. The audio oddball task is used to evoke the N200 and P300 ERP components, crucial for auditory attention and processing.
Visual Go NoGo: The classic visual go nogo paradigm typically evokes the visual N200 ERP component, indicative of cognitive control.
Auditory Go NoGo: The classic auditory go nogo paradigm typically evokes the auditory N200 ERP component, indicative of cognitive control.
N-Back: The n-back task is a continuous performance task used to measure a part of working memory and working memory capacity.
Gambling Task: The gambling, or doors, paradigm allows researchers to study reward processing and feedback-related negativity/reward positivity. Customization of the game enables the researcher to design the task in any desired manner.
Posner: The Posner game is a classic ERP paradigm used to study visuospatial attention. During the Posner task, researchers can present a cue that indicates whether a target will appear on the left or right side of the screen. Short after the cue, the target either appears where it was predicted to or on the opposite side of the screen. The point of the cue is to direct the participants attention to a possible target location and focus their attention there. Researchers can compare the evoked ERP response to valid and invalidly cued targets to study the P100 and N100 ERP components, both associated with the allocation of visuospatial attention.
Image Presenter: Allows the researcher to upload two series of their own selected images and will present them to participants. For example, if one wanted to study emotion, one series of images might evoke an emotional response (e.g. a cute puppy dog) whereas another series of images would not (e.g. a fork). By contrasting the evoked responses to the two categories of images a researcher would be able to gauge the amount of emotion in a response. Our unique Image Presenter allows the researcher to upload over 1000 images per category and control a wide range of image presentation features – image presentation time, image category randomization, response requirements, etc.
Raw Data Acquisition: PEER also features a Raw Data Recorder for recording raw EEG data. While recording, you can insert manual event markers (markers 1-4) and save the data for offline analysis.

With these comprehensive paradigms, researchers can delve into different aspects of cognitive processing with ease and efficiency.

Customization

Customization is at the heart of PEER's design. With our software, you can easily tailor every aspect of the ERP tasks to your research needs. Set your own inter-trial times, stimulus onset and offset times, jitter, and more. With our Doors task, you can even determine the number of doors, reward probabilities, and the type of stimuli that appear as rewards.

PEER offers a level of customization that is unrivaled in other mobile app solutions. We understand that every researcher has unique requirements, and we want to make it easy for you to design your studies your way. And for those who are new to ERPs and game design, PEER's default settings are based on the latest "best practices" in the field. With PEER, you have complete control over your research.

Gambling Task Configuration

Oddball Configuration

Raw EEG Data Visualization and Recording

PEER provides you with real-time access to the raw EEG data stream, allowing you to visualize the electrical activity in the brain as it's happening. With the ability to zoom in on individual channels or view the entire array at once, you can easily monitor the quality of your data and make adjustments as necessary.

Using intuitive iOS gestures, you can customize the display of the raw EEG data, adjusting the time scale and voltage range to suit your needs.

RAW EEG Viewing

When you're ready to start collecting data, simply hit the record button to begin the recording process. PEER will start capturing the raw EEG data from your headset, allowing you to analyze it later in your software of choice.

While recording, you can insert event markers at any time, allowing you to mark important events or segments in your data. This feature is particularly useful for comparing different scenarios within the same recording.

With PEER, you have complete control over your EEG data collection and visualization, making it easy to conduct high-quality research on the go.

Impedance Monitoring

With PEER's impedance monitoring, you can ensure the highest possible data quality. PEER automatically checks the impedance values for each channel and displays them in real time, allowing you to adjust the EEG headset as needed. You can be confident that your participants are properly prepared for data collection, since PEER will prompt you to adjust the EEG headset if the impedance values are not in the recommended range.

Impedance Checking

Customize Your Research with PEER

With PEER, you have the power to design your own custom studies to suit your unique research needs. You can customize everything from stimulus onset times and colors to inter-trial intervals and more.

And with the ability to export your studies to other iOS devices, you can easily share your paradigms with colleagues to ensure that all participants experience the games in the same way.

No need to start from scratch either – you can also import studies from colleagues who already use PEER, saving you time and effort. With PEER, your research is fully in your control.

Studies Menu Editor

Data Export

PEER makes it easy to export your data in a variety of formats to fit your analysis needs. Choose from the widely-used Brain Vision data format (.eeg), the European Data format (.edf), or a flexible comma-separated text file (.csv). With these export options, you can work with your EEG data offline in the software environment of your choice, such as Brain Vision Analyzer, EEGLAB, or any other program that supports these formats. This way, you have the flexibility to use the tools you're most comfortable with to analyze your data and extract insights from your research.