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...t have not been introduced to the EEG labs in this way, are not allowed to use the labs. ...e of questions, remarks or suggestions about these rules and procedures or in case of other questions related to the EEG-labs, please contact the [mailto

In this example, we will show how to create a visual speller in BrainStream. The visual speller was first described by Farwell and Donchin in 1988 [[#SecReference|1]]. A visual speller consists of a matrix which usual

All files (e.g. functions or figures) and folders that are used in your experiment must be on the [[Http://www.mathworks.nl/help/techdoc/matla ...folders. If you want to add a folder with all its subfolders, use addpath in combination with <tt>[[Http://www.mathworks.nl/help/techdoc/ref/genpath.htm

...umber with the one you want to see. Do not click the urls, but insert them in your system as described below. * Copy the desired URL above and paste it in the dialog.

...led url, a username and password. This page describes how to use this url. In the remainder of this page we will assume that you were given the url https ...the url in a webbrowser, just open the url and type username and password in the popup dialog.

...D=305174 Prof. Mike Rinck]. He writes the following for people who want to use it: They can use our own little Visual Basic program. In that case, they should contact me for help and instructions. They then have

When using audio in your experiment, especially when presenting time-critical stimuli, special ...vise to always consult a TSG member if you plan to run an audio experiment in the labs.

...(effective 2019). For simple, more user-friendly video recordings, you can use [[Ipod|iPods]] <references group="spec" /> <!-- Automatically list notes/references in the table above -->

...ller example, all actions were executed by the BrainStream Matlab session. In this section, we will describe how to enable [[BrainStreamParallelMode|para ...are executed at the BrainStream Matlab session, whereas actions indicated in blue are executed at the client.

...hing surveys. All students and staff of the Faculty of Social Sciences can use it. ...in a list. By default surveys are not listed on the main page. Change this in the ''survey settings'' if you wish. The preferred way is using direct link

...rce to the FieldTrip buffer. You can do this by specifying the data source in the [[BrainStreamBuildingExperiments#SecBlock|block file]]. ...ime, see the [[BrainStreamInstallation#HardwareSetup|Installation Guide]]. In the block file, you can specify a hardware device as data source as follows

In order to observe the GDPR, experimental data is preferably saved anonymousl ...cipant. This participant number can for instance be the token that you use in Limesurvey. It must be unique to the participant and it must not contain in

The Technical Support Group ensures an optimal technical environment in which researchers perform their experiments, quality measurements are the b *In order to achieve good '''quality''' we define, monitor and ensure the accur

...quisition system that allows you to capture and analyze physiological data in real-time. OpenSignals is the software used to manage and process the data ...to other applications and devices. Here is a step-by-step guide on how to use Plux with LSL:

...people not to use their software for hardware produced by other companies in a rather aggressive way. As a result you may see the text NON GENUINE DEVIC ...buting this driver like we do here is a violation of the FTDI EULA. Do not use this driver if that is an issue for your project. The driver can be found o

...r of the top row marked with a ''sun'' to set the keyboard backlight level in 4 steps. ...ammed backlight''. In ''backlight on'' mode all backlights will be ''on''. In ''programmed backlight'' mode only those backlights that you have selected

...audio interface. It gives the user a high level of control over all audio in- and outputs during an experiment. The XR18 audio mixers placed in the labs are fully pre-installed and ready to go. The following steps only

...se Python for purposes other than PsychoPy experiments, you are advised to use the PsychoPy stand-alone Windows [http://psychopy.org/installation.html ins If you already have Python 2.7 installed on your computer or if you want to use Python for other purposes as well, you are advised to install PsychoPy as l

Imagine you are building an online experiment that will use an external panel system. Now you would normally use the participant number to determine the condition: participant 0 get red, h

...tal data. Adhering to this format whenever practical makes it easier to re-use files and tools. The file is plain text for easy inspection and manipulatio ...ream reading since all records (lines) are terminated. This allows for the use of a readline() function for acquiring a line.

...ter under the desk is called ''vnc''. It is connected to the three screens in front of you. To run an experiment you log on to the experiment control com ...EDID modes, you have to add it yourself. This is typically the case if you use an analog connections to the monitor.

...per object. Below is a list of key functions that you will likely have to use to get things done or measured. ...if one script needs to interact with another, ideally you will set that up in the Start() function.

All research labs in the Maria Montessori can be booked via Ultimo. For links and instructions, To view lab bookings in your own calendar software use [[ultimo icalendar]].<br/>

...following markers have special meaning and will be inserted by BrainStream in certain situations. These marker names may not be used for other markers. H ...ned variables. The names must not be equal to any of the reserved names in use by BrainStream. These reserved variable names are listed below:

...ation. Stimbox was developed at the Donders Centre for Cognition and makes use of [http://psychtoolbox.org Psychtoolbox]. ...e an agenda prior to each sequence and then run the contents of the agenda in a [[BrainStreamLoopTick|looptick function]].

...] and the [[VoiceKey Lab]], headphones are part of the standard equipment. In other labs (e.g. [[Cubicles]]), you can lend one of our recommended headpho | Type || In-ear || Over-ear, closed back || Over-ear, closed back

...you can borrow the Axis M1034-W network camera to observe a lab and people in it. NB Always inform your participants if you are monitoring them via a cam 1. Make a reservation in the [[Booking_labs|Lab Booking System]] (under "Inventory").

We recommend to use a modern 64-bit version of Python. In our labs, we currently have Python 3.8.10 64 bits installed. Psychopy recom ...t-2.17.1.2-64-bit.exe/-/raw/master/GitInstall.docx GitInstall.docx]. Then, in

Caps and electrodes should be cleaned immediately after use, by following these steps: ...the ActiCAP control box, splitter box and connection cable (no 1, 5 and 7 in figure) are kept dry at all times!</span>

Caps and electrodes should be cleaned immediately after use, by following these steps: ...the ActiCAP control box, splitter box and connection cable (no 1, 5 and 7 in figure) are kept dry at all times!</span>

| caption = Lab Computer in a cubicle ....jpg|Connection Scheme]] <!-- ATTENTION! Don't place the connection scheme in the article itself (due to size); link here instead -->

...ic Affairs and the Netherlands Ministry of Education, Culture and Science. In addition, there is close collaboration with the Centre for Cognitive Neuroi ...iles that are needed for a particular application can be viewed and edited in BrainStream's [[BrainStreamBrainStreamEditor|internal editor]].

...www.socsci.ru.nl/tsg/sequence Sequence of URLs] can help. Put you two URLs in a sequence: If the informed consent form is of the type that is most common in the Donders Center for Cognition, the experiment is on our exp server this

...[[Media:temperaturehumidity.zip|temperaturehumidity module]] and unzip it in the same directory as your experiment. ...ing the file 'temperaturehumidity.py'. Double click it in explorer or load in the Psychopy Coder and click 'run'.

...simple problem at a time. They will all contribute to the final assignment in which you will work on an existing template. To run presentation in the labs you need a software dongle. Reserve a dongle when you book a lab.

*Use the desktop installment. *Use a fast wired network connection (avoid Wifi). start this [http://speed.conf

...different timepoints. Importing definitions from other tables also results in a more structured and readable design since functional parts of the design ...e treated as defaults and therefore, if the line with the import reference in the original table also defines actions, they will overwrite the defaults r

...dd as many topics with corresponding keys as you like as long as you don't use any of the topics used by BrainStream. This is an overview of topics and ke ...requires for its internal processing. This Subject's name is incorporated in the name of the corresponding mat-file. <br /> <tt>Subject = 'a_subjects_na

The following are examples of conversions that we commonly use. <code>-b:v 8M</code> sets the video bit rate, in bits per second. You can use "k" or "M" as shorthand for a thousand or a million respectively. See [[Vid

...an be used in your own application. An example of how Webgazer can be used in your own jsPsych experiment is described below.<br> ...here are a few dependencies as listed below that link to external servers. In this example, the corresponding utilised tools have been downloaded and add

...an be used in your own application. An example of how Webgazer can be used in your own jsPsych experiment is described below.<br> ...here are a few dependencies as listed below that link to external servers. In this example, the corresponding utilised tools have been downloaded and add

| DSR In Control #logging.getLogger().setLevel(logging.DEBUG) # use this for debug info

| caption = TMS in 2018 In the TMS lab, two MagPro X100 TMS stimulators available, one of them has the

...inology from the Vulkan API. It may be slightly different from terminology in other API's or commercials. ...ight as the stimulus. If it is mounted on the top left and the stimulus is in the center, the sensor may send a signal one frame after showing the image

Use as <br /> 1. <tt>value = bs_get_blockvalue(event, topic, key [,default])</t ...opic 'MyClassNames' with key 'Class1', you would retrieve this information in your own user function by the following statement:<br /> <tt>class = bs_get

..., it is possible to use looptick functions. Looptick functions will be put in a while-loop running at a [[BrainStreamParallelMode#SecClients|client]]. Th ...ck function will be called again. The waittime variable specifies the time in seconds until the next looptick call. For example, if you want to have an i

# Turn on computers and log in. # When not all used units are found, make sure that the units you use are turned on, and that all other units are turned off. Close First Princip

In contrast to these services, GitLab Social Sciences is self-hosted on a serv That means we determine our own terms of use; for example, you can get private projects for free - on GitHub, you would

...cm wide, they will need to be placed at least 90 cm away. This means that, in order for the camera to be placed correctly (50-70 cm from the participant' ...p of the EyeLink camera and illuminator should also be as high as possible in the participant's field of view without obstructing any part of the display

example shows how to use the undocumented features in both libraries. A matplotlib graph is made, written to file and shown in a PsychoPy ImageStim. Then the graph is updated

...nts from events should be specified in a separate Trigger table, explained in more detail here. == Inserting markers in the data stream ==

...e we'd have to adjust the sources again later. Click the "Settings" button in the bottom right. ...ile to MP4 after your recording, which is typically the format you want to use if you want to edit the video later.

...s. '''pip is included with Python 2.7.9 or greater'''. For older versions, use the following steps to install: '''Note:''' By default, packages are installed in the following folder (Windows):

...rded by electrodes placed on the scalp or, in special cases, subdurally or in the cerebral cortex. The resulting traces are known as an electroencephalog ...e of detecting changes in electrical activity in the brain on a time scale in the millisecond region.

...h implies processed events can both be distributed in space (parallel) and in time. BrainStream incorporates special features to automatically guarantee ...s or pipelines) associated with the markers. Actions can be freely defined in order to accomplish some particular task, for example presenting stimuli to

Mattermost is a chat system you can use in any web browser, or with apps on your computer or mobile phone. You need a GitLab account to log in at https://mattermost.socsci.ru.nl, see [[Gitlab Social Sciences]] for more

...racter to a string is called an ''epoch''. A series of epochs that results in a complete sentence is called a ''sequence''. Subjects can press a button w ...ng this tutorial, the experiment file (.exp) for this example can be found in <tt>/brainstream_mds/examples/blocks/sentences/sentences.exp</tt>.

| status = -in development- ...er (LSL) is a system for the unified collection of measurement time series in research experiments that handles both the networking, time-synchronization

* Trigger interface MDI IN connected to MIDI OUT on iRig2 device (midi controller) * Windows machine with both ethernet and wifi (use dongle and shut down regular wifi!)

There is valuable equipment in the labs. Therefore lab keys should be handled with caution. Researchers mu ...els must be kept to a minimum. In consideration of your colleagues working in the labs, you are expected to speak softly and limit conversation with othe

...eriments where no distinction is made between systematic and random errors in timing, the audio delay equals the accuracy This is the definition that we use most often, because it is relatively simple to measure. All you need is a c

===== 1) Use a recorded file ===== ...xperiment will stop running waiting for you to check the code. Time is now in your hand and you can easily debug your experiment.

...at can be specified by means of these input arguments can also be selected in the GUI after startup. The following input arguments have to be entered as ...etting Matlab path. In general, it is recommended to specify this function in the block file (see [[BlockFile#TopicExperiment|here]]) rather than via thi

...everything that happened during your experiment. You can find the log file in the [[BrainStreamPathsFolders#OutputFolder|runfolder]] of your experiment. ...information is included in the log file and where it can be found. We will use [[File:BrainStreamDocs_Log-09Nov2011-10h47m38s.docx|this]] log file as an e

...ab sessions apart from the one running BrainStream are called ''clients''. In the following, we will describe the steps that are needed to direct the exe ...ases. For example, you could call the stimulus presentation client 'stim'. In the block files of your experiment, you can define the actual address of th

...ou may want to read about [[presentation modes]] in order to decide how to use the sync sensor. *In the Advanced Settings window, use the scroll input to select a '''Com Port''' (select 10 or lower). Change ''

...er amounts of movement require a higher amount of information to be stored in order to prevent quality loss. ...s it will optimize the distribution of information storage for those parts in your video. The downside is that your video player has to sometimes suddenl

| caption = RIVER Lab 2 in 2015 ...e Institute research labs dedicated to experiments in Virtual Reality (VR) in the Spinoza building.

...ab for explanation or read the BSD.txt file in ''third_parties'' subfolder in BrainStream's core folder) ...d any additional folders on your Matlab path, you can add them to the path in several ways (see the [[BrainStreamPathsFolders|Paths and Folders section]]

In the final part of this visual speller example, we will show how to use a [[BrainStreamLoopTick|looptick function]] for stimulus presentation. The ...are executed at the BrainStream Matlab session, whereas actions indicated in blue are executed at the client.''

...here]. Data transfer from client to server is handled via http-requests. In this request a script file is defined that runs server side. To mimic this

...an extensive list of considerations for choosing a head mounted display to use for your VR applications. ...but there is often more space between individual pixels, which can result in a more prominent [https://en.wikipedia.org/wiki/Screen-door_effect screen-d

...find documentation for the Hardware, Software and Research Equipment used in the lab environments of the research facilities of the Faculty of Social Sc ;Lab Use Policy and Guidelines

The buttonbox is used for time accurate(1ms) button press registration. We use it to register buttonpresses, soundkey, voicekey signals and to send tone o ...Bits to Serial Interface. Because the BITSI is designed to interface both in- and output signals, the 'protocol' is asymmetric: the input and output pro

...all head mounted displays that we have, at some point, recommended for use in research applications. This is not a blanket endorsement of any of the prod | Type || n/a || 3DoF Non-positional || Outside-In || Lighthouse || Lighthouse 2.0 || Lighthouse 2.0 || Inside-Out

...periment is summarized in the [#SecProjectFile|BrainStream Project file]]. In the following, each of these components will be discussed. ...heet. In the following, the experiment definition tables will be discussed in more detail.

Technologies we currently use for deployment are: At TSG software development group, we believe in the philosophy that 'sharing is caring.'

| Graphics Card || Intel Graphics UHD 630 || in consultation ...een languages or keyboard mappings, click the 'language and keyboard' icon in the tray and choose the option that you prefer.

...are very different compared to real-time EEG experiments. This is because in real-time fMRI, the fMRI scanner cannot be controlled using [[BrainStream|B ...the stimulus material for each task. Becasue during the 'Classifier' task (in which the traning data is used to trainn the classsifier,) no stimulus is p