Habit 2.2.2 For Mac
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A new version of Habit, 2.2.7, is now available (download here). This version has two bug fixes that may affect you - see below. As always, you may install this version over an existing 2.2.x version of Habit. Changes in this version of Habit Habituation by Total Looking Time A recent change caused the run-time handling of this setting to be incorrect. If you had a phase that used habituation by total looking time, and if the looking time requirement was met during a trial, then Habit did not end the trial at that point, but instead waited for the trial to end by its ordinary means (whatever you had configured for the trial settings, for example max stimulus time, or continuous time inattentive). The post-hoc reporting on the phase still reported habituation, but the total looking time was allowed to run longer than the specified habituation time. For example, suppose you asked for total (cumulative) looking for habituation to be 10.0 seconds, and you had trials with a maximum stimulus time of 5.0s. Now, your subject had 3 seconds of looking in each of the first three trials, for a total of 9.0 seconds. In the fourth trial, the trial (and phase) should end after 1.0 seconds of looking. BUT! Due to the bug, the trial would run through its entire 5.0 seconds, and the subject could accumulate more than 10.0 seconds of looking. The bug was introduced in version 2.2.5-rc4, persisted in 2.2.6, but is fixed in version 2.2.7. Too Many Phases! Several users had problems when running experiments that had several phases. When running such experiments, the 'Run Settings' dialog box didn't allow for scrolling through the available phases (for selecting stimulus orders), and some phases were not visible on the dialog. A workaround - maximize the dialog - sort of worked, but left users with a dialog that was hard, if not impossible, to read. The fix was to add a scroll bar. The scroll bar appears automatically when it is needed. If your experiment doesn't have many phases, you may not see it. A new version of Habit, version 2.2.6, is now available for download! This version is a roll-up of several changes and bug fixes made over the last few months. Some of you have a preview of this version, labelled 2.2.5-rcN (N=1,2,3,4). I've thrown a couple more changes in and I decided to skip over 2.2.5 entirely and skip the numbering to 2.2.6. MacOS users The installer you download for this version will depend on what version of macOS you are using. Its a long story, so I won't bore you with the details. In a nutshell: Something changed in mac Mojave that affected Habit, and the fix is slightly different on newer versions of macOS (High Sierra and Mojave) than it is on older versions of macOS (El Capitan and Sierra). Check your computer before downloading (click Apple Menu > About This Mac). The installer will not allow you to install on the wrong version - so if you attempt to install and you are told you 'cannot install Habit on this volume' - it means that you've got the installer for the wrong version of your macOS. Download again and install! Dark Theme As long as we're on the topic, I recommend against using Dark Theme when running Habit experiments. Changes in this version of Habit Updates to signatures Some of you may notice that, starting with this release, ALL versions of Habit downloaded from our site have been signed digitally. For you that means you can trust that the installer file itself and the executable file have not been modified between the time they were created on my computer to when they were installed (and used) on yours. These security things work a bit differently on Mac than they do on Windows, but beneath it all is a digital 'certificate' issued to the University of California, Davis, which in turn assigns it to me. This establishes a chain of trust through a set of 'legitimate' organizations that leads to me. The 'certificate' is used to encrypt files in a particular way so that any tampering with the file can be detected at run time. All you need to know is this: If your OS allows the program to run, then it has not been altered since it left my desk. That's not to say the program will be free of errors (a goal of mine, but it can be elusive;), but only that the file(s) you download and access are exactly those which I compiled, gathered into installer files, and distributed via our website. Randomization bug (Mac, Win) There was a bug that occurred when running an experiment where multiple phases used randomized ordering of stimuli. In such a case, the two phases may have been assigned the SAME ORDER. This has been fixed. Note that this only applies to a single run of the experiment, and only only applies to the ordering of the stimuli, not the stimuli themselves. Repeated stimuli (Mac, Win) When consecutive stimuli were the same, or when the same stimuli are used on trials with one intervening trial using a different stimulus - the second showing of the stimulus was always full screen, regardless of your Stimulus Display options. In other words, if
Dual stimuli, multiple audio streams, looping (Mac, win) There were a handful of bugs reported under various scenarios, mostly related to this combination of things. The bug was either a 'stuck' stimulus - which stopped and did not loop correctly - or a CRASH of Habit! UI Changes (Mac, Win) Clarify language explaining monitor settings in Workspace Preferences dialog. Fix Modify Stimulus dialog so the entire stimulus file path is displayed. Make fonts in all dialogs consistent across entire application. Future changes I will be releasing a linux version of habit, but it awaits some effort in properly packaging it. If any of you are interested please let me know. I am working on adding digital signals - which you can use to synchronize your habit data with other data streams. If this interests you, please contact me and tell me the hardware interface you plan to use (serial, parallel, TCP/IP). Finally, I'm testing a feature that will allow you to record a video stream from a USB camera, and to have Habit embed markers directly into that stream to indicate the start and end of stimuli presentations. More on this as it develops. A methods publication is now available. Please use this as a citation in your work. Habit will continue to evolve, so always refer to the website for the latest version. Habit 2.2.4 available for Mac and Windows9/10/2018 I've just released an update to Habit, available for both Mac and Windows. This version is a drop-in replacement of existing installations of Habit. (*) Key changes to Habit in this version:
(*) For users with ongoing studies in Habit version 2.1.26 and less: please continue your data collection with that version until studies are complete. You can install the latest version (2.2.4) alongside your existing 2.1.x installation. If you do, however, be aware that version 2.2.x uses a different database for settings than the older 2.1.x versions - so changes made to experiment settings while running 2.2.x are not seen in 2.1.x, and vice-versa. Three Stimuli? Several users have asked about having a third stimulus screen. This version of Habit allows experiments with one, two, or three stimuli. In the Experiment Editor, the 'Stimulus Display' tab now looks like this: Note that under 'Stimuli Layout' there are three radio buttons - previously there were only two choices. When 'Three Stimuli' is chosen, all stimuli (and attention getter, if used) will have three positions - left, center, right. In order to run such an experiment on multiple screens, you still must identify the screens in the Global Preferences dialog. In that dialog, the 'Single Stimulus' monitor is used as the 'Center' stimulus, and the two 'Dual stimulus' monitors are the 'Left' and 'Right' stimuli, respectively. Habit 2.2.3 available for Mac and Windows!7/31/2018 I've released a new version of Habit for Mac and Windows: version 2.2.3. This version is a drop-in replacement for Habit 2.2.1 and 2.2.2 (2.2.1 users may upgrade directly to 2.2.3). Your existing settings (from 2.2.x) are preserved and will continue to work with this newer version. There are some bug fixes in this release, outlined below. I appreciate the bug reports I've received and have tried to address them all - the results of that work is reflected in this release. Thank you, Habit users! Please don't hesitate to contact us with bug reports, feature requests, and general questions. What's new in this version?
Note to users of older versions of MacOS A lab here at UCD runs Habit on an older version of MacOS (10.10, 'Yosemite'). When starting an experiment on this machine, the 'Control Panel' dialog would take over the entire screen, and could not be reduced in size. After the experiment was ended, a black screen remained (requiring the user to switch apps using AppleKey-TAB) to return to the main Habit window. This is due to a slight difference in screen management at the OS level, but I found a workaround and the problem is fixed in this update. Obviously, an OS upgrade would likely fix the problem, but I'd stop short of recommending upgrading your OS for Habit, because this workaround takes care of this problem. If you continue to use an older version of macOS and if you encounter any problems with Habit, please let me know! Windows Users? I'm waiting to hear from Windows users about their experiences. I'm going to assume that 'no news is good news', but given the number of downloads, I expect that users will find bugs or errors (assuming they exist) in the Windows version. What's next? Some developments in the pipeline, based on feedback from users:
Habit 2.2.2 for Mac and Windows released!7/13/2018 After many months of development, we're finally releasing Habit2 for Windows! Download Habit 2.2.2 for Mac or Windows now! Habit 2.2.2 has some important fixes to version 2.2.1, so all users of Habit 2.2.1 should update their version (see below for changes and bug fixes). The Windows version is based on the same code, with only minor variations due to the differences between the Mac and Windows platforms. More on that, too, below. I want to thank all the folks who have quietly (some less so than others:) urged us to release Habit for Windows. That goes for all of you who have submitted bug reports, requested features, sent thanks and encouraging words, or just USED Habit for your research. Knowing that there are satisfied users out there is plenty of incentive to keep pushing on development. On a personal note, there was no small amount of difficulty in my personal life in the last year and a half, and that slowed development down significantly for a while. I want to extend my thanks to Prof. Lisa Oakes (Infant Cognition Lab, UC Davis) and Prof. Marty Usrey (my direct supervisor) for their forbearance, patience, and understanding during this time. My goal has been to maintain a single set of code that would compile and run on each platform. Sounds great, but its easier said than done. For starters, the multimedia library that was used in earlier versions of Habit was Mac-only. I devoted quite a bit of time to choosing (and learning to use) a new multimedia library (called GStreamer, in case you're interested) that would satisfy the requirements that Habit imposed. Integrating GStreamer into Habit's codebase, and adapting to the quirks and limitations of a library as complex as GStreamer all took significant time and effort. I updated the user interface. migrating from Qt4 to Qt5. I made significant changes beneath the hood, as it were, to position Habit for more changes to come. All in all, it was a long slog, but the time has come to release it and see what you all think. All these things required a ton of testing (and I still didn't do enough), and led, inevitably, to the introduction of a multitude of bugs. I've found and fixed quite a few, and some of you all have found quite a few others. There's a new class of bug, where a bug exists on one platform but not the other. Yes, I said Habit is grown from a single codebase, but that doesn't mean the program runs identically on Windows and the Mac. Well, enough of my complaining, let's get into what you can expect from Habit 2.2.2. Changes in Habit 2.2.2
Known problems
Documentation update I've been migrating the Habit User Manual to an online HTML format. The online docs are based on the User Manual, and the conversion is not yet complete. As of this writing, the pdf User Manual is the most complete documentation, but the online version will catch up soon (and will overtake it, as this will be the place for documenting updates to Habit). Windows quirks These exist, of course, because Windows and OS/X are quite different. There aren't too many differences, though, and most of them are things that an ordinary user would not notice.
Notable You will find that Habit workspaces can be moved between Windows and Mac computers. Experiments that are exported from one platform can be imported on another platform as well. One significant problem has to do with the file paths stored for stimulus files. If your experiment(s) use the Default Stim Root, and you are able to configure the value on the target computer, the move will work as expected. If any of your stimuli use full file paths, however, those file paths will not be the same when you move to a different computer (this is true even when moving an experiment between two Macs, or between two Windows computers), and you will have to modify the paths to each stimulus file after the move. Its been a long time, but the time has finally come to release a new version of Habit. We're calling this version 2.2.1, and there's a lot that's changed. We have a new User's Manual (draft version), and we've submitted a methods paper describing habit2. Here's some of the key changes you'll see (and some that you won't see):
You can't have an update like this without a few WORDS OF CAUTION: If you are currently collecting data using the previous version of habit, you should continue to do so with the same version until the study is/are complete. This is a precaution against introducing systematic differences in your data set(s), which may depend in some way on the version of habit. If you begin a study using habit2, however, you can continue to collect data using any updates to habit2 that may come along. The newest version of habit2 will coexist with habit. There are implications to this which you should understand. First and foremost, habit2 uses a different database format than habit did. As a consequence, when you open a workspace with habit2, your database (which holds all of your experiment settings) is copied and updated to work with habit2. Once this happens, changes made to your experiments using habit2 do not affect the settings in your original habit database. This may be confusing for some of you - especially those of you that have ongoing experiments and must continue using original habit. For those of you who are using habit2for the first time, or if you do not have ongoing experiments which require original habit, none of this matters. You may uninstall original habitmanually if you choose. A word or two about .. bugs Like any good software developer, I do NOT include bugs in my code, and I certainly never intentionally included any in this version of Habit. I've found that there are ways, mainly due to neutrino interactions with my hard drive, that bugs do find their way into Habit. OK, that's not true. There are certainly bugs in Habit. There's over 100,000 lines of code in there, believe it or not, and there's bound to be a mistake or two lurking. And after a huge update like this, well, I can only test so much. That's where you come in. Please don't hesitate to contact us if you find bugs, have questions about configuring an experiment, or have feature suggestions that you (and other users) might find helpful. A new version of Habit, version 2.1.25, is available for download! You may install this version (if you choose) over your existing version - your experimental settings and results will be saved. What's changed? Well, a lot, actually, but not much that you will see..yet. I've begun making some major changes under the hood, preparing for a major new release this summer (along with a long-awaited methods paper describing Habit2 and its many uses). There are several changes which you will see, along with some minor bug fixes that will clean up some problems that users have reported (THANK YOU to all of you who have taken the time to report errors and problems!). You say 'tomato'.. Several users reported situations where they created experiments with valid stimuli, but found that the stimuli names were yellowed out in the 'Stimuli' panel, or sometimes the 'Stimuli Orders' panel of the Experiment Editor. The yellow color indicated a problem, but there was no clear reason (this occurred even when the stimuli were all valid files present on the computer). The bug (fixed in this version) was due to Habit2 using different 'rules' for the names that can be given to stimuli. What was allowed as a name when the stimulus was added to the experiment was NOT allowed in other contexts within Habit. This inconsistency has been corrected. For the record, stimulus names (the names you give them, not their filenames) must adhere to the following rules. The dialog will enforce these rules as you type - so there isn't really a need to remember them. The rules are that a stimulus name:
Results Viewer changes The Results Viewer has been changed somewhat. Previously you could use the Results Viewer to view results and examine experiment settings in use when a particular result was obtained. I've cleaned up the display a bit, and you will notice that two types of files are displayed: *.hab file (the results file written on completion of an experimental run), and *.csv file (exported results data for use in you analysis). Double-clicking on a csv file will open that file in Excel (assuming you have Excel installed on your computer). Double-clicking on a results (*.hab) file will open that file and present you with 4 options (there used to be just 3):
A new version of Habit is available, with some small fixes and some larger changes. Many of the changes are in response to comments and/or suggestions from users who have downloaded Habit and are using it - THANK YOU! You can download the latest version and install over your current version. All your settings will be preserved. Bug Fixes and Changes in Habit 2.1.21
A number of changes and fixes have been rolled into one release. We've also been fielding a few questions about Habit now that people are downloading and using it. I'll update you on the fixes below, and I'll also answer some of the more common questions. As always, you may download the latest Habit and install over your existing version. Your existing settings and experimental results will be preserved across versions. Bug fixes and changes in 2.1.19
Notes and Frequently Asked Questions
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