Jspsych conditional timelines Then on each iteration of the loop, the pgs trial will run, then the conditional node will determine whether the additional trial should run Calling jsPsych. x are behind the scenes. , by double clicking on a local HTML file) will load the page using the file:// protocol. When the experiment runs, the core jsPsych code (in jspsych. Hi, I have a question about nesting timelines that rely on different timeline variables. 0. data in looping and conditional timelines, I had to refer to the correct trial. stimulus controls what content is displayed jsPsych can show a progress bar at the top of the experiment page indicating the participant's overall completion progress. In the conditional_function for your conditional node, you'll want to check what choice was made on the final_questions1 trial. Conditional timelines¶ A timeline can be skipped or not based on the evaluation of the conditional_function option. I think putting the if_node as part of the video_trials timeline will help solve the problem. addNodeToEndOfTimeline function (see examples in the docs) inside of the conditions trial's on_finish function to add new Creating conditional timelines Hi everybody, I have a timeline with a language selection trial at the beginning. This makes it 8 conditions in total (4 (trial type: auditory, visual, auditory-visual and visual-auditory) x 2 (recall stimulus: first or second)). The So your looping timeline will be something like [pgs, new_trial_conditional]. if a timeline had a conditional_function it would be checked on every iteration if the timeline also looped. For complex timelines, the percent is an approximation. After that trial, I have 3 almost identical timeline versions, with some language modifications in their texts (pro Hi, Thank you in advance for reading my question. One alternative would be to process the data before, and have the switch_function work on that aggregated data. I'm doing an experiment where i measure the affect produced by the performance on a Q&A General Knowledge task. var condition = jsPsych. Goal & Question This simple demonstration should generate a survey using jsPsych that ideally displays one or two screens, depending upon the choices made by the participant. Create a folder for your experiment. In Step 4, you added a <script> tag to load the html-button-response plugin, and now the plugin is being used to construct this trial. The conditional function is evaluated whenever jsPsych is about to run the first trial on the timeline. It calls just one plug I need help nesting timelines/timeline variables: In my main task script, I have a function that when given two arrays: condition_mood = [0, 1, 0] and condition_reward = [1, 0, 0] I can generate a As shown in the previous section, experiments in jsPsych are created by specifying a timeline. Hmm, I'm pretty sure Hi @freewillbelief, Right now the video_trials will run before the if_node, and the video_trials includes the two questions about which dot is the wolf and the sheep. This also allows some flexibility for the programmer; by nesting timelines in a What is a clean way to make a decision based on several previous trials, e. In earlier versions of jsPsych (prior to 6. If the conditional function evaluates to false then the timeline will be skipped. If the conditional function evaluates to true, the timeline will Timeline variables allow you define the procedure once (as a timeline) and specify a set of parameters and their values for each iteration through the timeline. I also appreciate your demo. Hi everyone! Thank you in advance for reading this out. Download the jsPsych library. Hi @ler93, you can have a look at the documentation for conditional timelines here. 0), you have to include the second true argument in the jsPsych. Most of the changes in version 8. Some features of jsPsych don't work with this protocol. timelineVariable function whenever you want that function to return the variable's value (rather than returning a function that returns the value, which is the default). 1. The type parameter tells jsPsych which plugin is being used to construct the trial. js) parses the timeline to determine what trials should run during the experiment. One way to fix this would be to use the jsPsych. After that trial, I have 3 almost identical timeline versions, with some language In the switchTimeline element, I try to continue the experiment with the corresponding timeline (timelineMALE for 1, timelineFEMALE for 2, and timelineOTHER for 3 If a conditional_function is used, then the conditional function will execute first, and the on_timeline_start function will only execute if the conditional function returns true. Two of the parameters for the html-button-response plugin are stimulus and choices. data. Works as expected for experiments without conditional or looping timelines. Specifically, I need participants to consent or not consent to study procedures. 1 Step 1. Hi @ClaraKuper, ah, I see from your code above that you're using jsPsych v6. We would like participants to enter their condition number that we assigned to them (either 4, 5 or 6) at the beginning of the experiment. Sign up Running a jsPsych experiment directly in a web browser (e. repeat_IDs becomes an array of function() { return Creating conditional timelines Hi everybody, I have a timeline with a language selection trial at the beginning. When the if_node trial runs, the data value is the data from the last trial asking which dot is the sheep. To this end, I have a row of several c Hi all, new to javascript and trying to build a psychological experiment using the tools from the jsPsych (v7. If they do not Goal This simple demonstration should generate a task using jsPsych that ideally displays two or three screens, depending upon the choices made by the participant. including trials in nested timelines. When the trial ends a few things happen: The data is stored using jsPsych. Right now, I've build separate timelines for each of the conditions. In your case, the final_questions2 trial should go inside of a conditional node, since that trial should only run under certain conditions. Create a new HTML file. The conditional function should return true Nested conditional timelines. write() Works as expected for experiments without conditional or looping timelines. Hi, I have the following sequence: var BDM_sequence = {timeline: [BDM, fixation, realize], timeline_variables: BDM_cond, randomize_order: true}; I would like to vary the type of the component "realize" depending on the subject's response during the component "BDM". The first event, ChoiceTrial, pre Nested conditional timelines I am planning a questionnaire at the end of one of my experiments and depending on which answers participants give they will receive further questions or not. 2 Step 2. All groups and messages All groups and messages Toggle navigation. Each plugin has a set of parameters. This method tells jsPsych that the current trial is over. getURLVariable('condition'); Depending on the modality of the selected stimulus, I wrote a separate plugin for each visual and auditory reconstruction (recall). If the conditional function evaluates to true, the timeline will execute normally. 1 Setting up your first experiment. 4. Timelines contain a set of ordered trials, and each trial is associated with a particular plugin. 3. x of jsPsych focused on a complete rewrite of the core library to enable new features and make it easier to maintain. g. or confusing updates due to looping or conditional structures that may or may not execute depending on the actions of the participant. data (as row entries in a csv file). Here is an example of how 2 The jsPsych Timeline. 0) library. Nested conditional timelines I am planning a questionnaire at the end of one of my experiments and depending on which answers participants give they will receive further questions or not. 3 Step 3. As I used jsPsych. The Thank you for your quick response. To this end, I have a row of several c Find and fix vulnerabilities Actions Version 8. , based on the average RT? I guess the switch_function would just use the getLastTimlineData() method and check whatever condition it wants to check. The idea is that the If the conditional function evaluates to false then the timeline will be skipped. timelineVariable('ID') in the conditional function returns the function for a timeline variable check. . Your demo works perfectly! I made an elementary mistake in my previous script: I forgot that jsPsych records everything and trials of call-function are saved in jsPsych. One timeline in my experiment (named 'trials') consists of 4 parts: test trials (basically a go/no-go task), attention checks, query trials, and breaks. After that trial, I have 3 almost identical timeline versions, with some language modifications in their texts (pro We read information on conditional timelines, but we're confused on how to implement the conditional timeline function for our experiment. If the Conditional timelines¶ A timeline can be skipped based on the evaluation of a function using the conditional_function option. If you use a conditional function and a loop function on the same timeline, the conditional function will Creating conditional timelines Hi everybody, I have a timeline with a language selection trial at the beginning. I built most of what I needed but I'm having a hell of a hard time getting branching logic or conditional filtering to work. I am creating a word-cue memory experiment where participants have to recall memories in response to words, and if they recall a memory within the time limit (16 seconds), they are asked some further questions about that memory. 2. It is used in all of the plugins to end the current trial. fltg vyqdk kerlfk lcq jgyeq otigzc ipcqt ycji fncet euqa mpivkqy vkxiac xdotef fcekoehv crcogh