Show all posts by user

Re: Corrupted .bhv2 file, 'End of file' error - 1 year ago

Try to read again with the latest NIMH ML.

by Jaewon - Questions and Answers

Re: cond_selector not randomizing condition on first trial - 1 year ago

I do not see such a problem during my tests. The condition of the first trial in each block is as random as it can get on my computer. What you need to check is whether the condition assigned in the selector function and the current condition in your timing script are the same. If so, there is nothing wrong in getting the first condition at the beginning of each block. Using randi() does not e

by Jaewon - Questions and Answers

Re: getKeyPress during MovieGraphic - 1 year ago

Please explain what you are trying to achieve, not how you want to do it. Why do you need getkeypress and moviegraphic?

by Jaewon - Questions and Answers

Re: EEG event markers not coming inside .xdf file - 1 year ago

I guess you probably did not use lsl_loadlib correctly, but neither lsl_loadlib nor LabRecorder was built by me, so you have to contact the developers of those applications if you think there is something wrong with them. I do not know whether LabRecorder allows running other applications at the same time. You should try running it on another computer. It is not a good idea anyway to slow down

by Jaewon - Questions and Answers

Re: Delay Property Issue in TimeCounter and TTLOutput 2 - 1 year ago

Read this manual page carefully. https://monkeylogic.nimh.nih.gov/docs_CreatingTask.html#HowToCreateAdapterChains In your code, TTLOutput is the topmost adapter, which means that the scene ends when TTLOutput stops. If fixation was the behavior you wanted to acquire in the scene, you should have made WaitThenHold the topmost adapter.

by Jaewon - Questions and Answers

Re: Delay Property Issue in TimeCounter and TTLOutput 2 - 1 year ago

I see where the manual was not written clearly. You should set the duration of TTLOutput, like the following. ttl1.Duration = 50;

by Jaewon - Questions and Answers

Re: EEG event markers not coming inside .xdf file - 1 year ago

If you have a psychopy function that works for this already, why don't you write a MATLAB function that does the same thing? Are you saying that you did so but it did not work? By the way, you can call python functions from MATLAB, too.

by Jaewon - Questions and Answers

Re: Delay Property Issue in TimeCounter and TTLOutput - 1 year ago

Both errors are your programming mistakes and have nothing to do with NIMH ML. You know that your TimeCounter (tc1) is not included in the adapter chain and therefore does not do anything, don't you?

by Jaewon - Questions and Answers

Re: EEG event markers not coming inside .xdf file - 1 year ago

You are asking the question to a wrong person. You should ask it to the maker of the software that generates the .xdf file.

by Jaewon - Questions and Answers

Re: LabJack I/O Device - 1 year ago

You cannot use just any I/O board. It has to be supported by NI-DAQmx. It is not impossible to support the drivers of other products, but I just do not have time to do so.

by Jaewon - Questions and Answers

Re: Eventmarkers not triggered - 1 year ago

It is just impossible that some markers are stored and others are not. You should look harder what really happened.

by Jaewon - Questions and Answers

Re: Does ML support 2 microphone audio recordings at the same time - 1 year ago

A sound card can process multiple channels, so it is unusual to install more than one card. I think the best option for you now is to use two mono microphones and record them as stereo. You may need a stereo-to-dual-mono jack or splitter.

by Jaewon - Questions and Answers

Re: Connection Test failing while establishing TCP/IP protocol. - 1 year ago

Did you start sending packets on the DQW side? It does not send anything until you click some button.

by Jaewon - Questions and Answers

Re: Saccade EventMarker - 1 year ago

If you are scripting in the v1 style, you can monitor the eye position around the initial fixation point with eyejoytrack('holdfix',...) and, as soon as it returns with 0 (i.e., when the fixation is broken), call eventmarker. However, I advise against this unless you have a compelling reason to detect saccades in real time. Whenever possible, it is better to analyze saccades offline.

by Jaewon - Questions and Answers

Re: Does ML support 2 microphone audio recordings at the same time - 1 year ago

Depending on what you exactly want to do, there can be different suggestions, but usually this is what you need a mixer for.

by Jaewon - Questions and Answers

Re: Limiting joystick/cursor movement to pathways - 1 year ago

I wrote an example task for you. This example requires you to define the boundaries of the pathways with non-overlapping rectangles. See the code in the attached file.

by Jaewon - Questions and Answers

Re: Limiting joystick/cursor movement to pathways - 1 year ago

You can use the custom calibration function. See this manual page. https://monkeylogic.nimh.nih.gov/docs_CoordinateConversion.html There is also an example task of this in the "task\runtime v1\8 customized calibration\" directory.

by Jaewon - Questions and Answers

Re: MRC Eyetracking - 1 year ago

The eye tracker has to have a voltage output option. If it provides only TCP/IP, it will not work. See this post. https://monkeylogic.nimh.nih.gov/board/read.php?3,1993

by Jaewon - Questions and Answers

Re: Missed stimulus video frames - 1 year ago

What is the width and height of your videos? I guess a video card with large memory and a powerful CPU can help with it, but it is not always possible to prevent skipped frames for large videos.

by Jaewon - Questions and Answers

Re: Integrating Pupil Labs eye tracker via LSL - 1 year ago

This is not something you can fix with a little tweak. I may be able to develop something without actual hardware, but, at some time point, the hardware will be required for testing whether everything works. Ask the vendor if they can send me a test unit. Tobii once lent me their top-of-the-line product for a month so that I could support their hardware. Maybe this company will do the same.

by Jaewon - Questions and Answers

Restoration of the board functions - 1 year ago

Due to a system upgrade made a couple of months ago, some functions of the board (e.g., posting new topics, creating new profiles, etc.) were disabled. Most of them are restored now, but please let me know if you find anything that does not work as expected.

by Jaewon - News

2.2.49 & 2.0.270 (Dec 19, 2024) - 1 year ago

* Changes in 2.2.49 (Dec 19, 2024) - OnsetDetector did not report RT due to a change made in 2.2.43. It is now working correctly. (Thanks to Chaoyi Zhang)

by Jaewon - News

Re: Integrating Pupil Labs eye tracker via LSL - 1 year ago

Establishing a TCP/IP connection alone does not guarantee any functionality. The critical factor is the structure of the transmitted data, which varies by vendor. Unless your eye tracker is listed among the supported hardware (https://monkeylogic.nimh.nih.gov/docs_TCPIPEyeTracker.html), it is not possible to retrieve eye positions from the connection. To support new hardware, I would need access

by Jaewon - Questions and Answers

Re: Sound based Go/No-Go task design - 1 year ago

Please do your part first before asking that kind of question. Take a look at the provided example tasks and manuals.

by Jaewon - Questions and Answers

Re: Assigning multiple thresholds in multiTarget - 1 year ago

There are so many ways to detect such a behavior. You need to use a little imagination. For example, you can repeat the scene until the subject touches the target.

by Jaewon - Questions and Answers

Re: Dual Touchscreen Functionality - 1 year ago

You description is confusing. What is the difference between two separate inputs and the dual screen? Are you talking about duplicating the same screen on two monitors? Then, you should set it up in the Windows Display settings.

by Jaewon - Questions and Answers

Re: Dual Touchscreen Functionality - 1 year ago

I am posting your email reply here so that we can continue our discussion here. ------- Thank you very much for your response, but the monitor setup manual page is just about two separate inputs, not the dual screen I am looking for, which is two monkeys can play on two different touch screens at the same time.

by Jaewon - Questions and Answers

Re: Dual Touchscreen Functionality - 1 year ago

Have you tried the trick introduced in the monitor setup manual page? https://monkeylogic.nimh.nih.gov/docs_MonitorSetup.html#MoreThanTwoMonitors

by Jaewon - Questions and Answers

Re: Export trial videos using mlplayer automatically - 1 year ago

No, there isn't. You can try modifying mlpayer though.

by Jaewon - Questions and Answers

Re: Eventmarkers and Idle - 1 year ago

I do not understand the purpose of your state machine. TDT can store the numbers sent via digital lines and their timestamps. Why do you need to build a state machine? Eventmarkers are not sent at the same time. As I said, all assigned digital lines are used together to represent one number, so there is no way to send more than one number at a time.

by Jaewon - Questions and Answers