![]() ![]() One development is new, however, and that is the ubiquity of mobile devices. Overview – by the regularity of updates one can easily assess whether a system has Many packages have been steadily supported and improved, and find more Integration, however, as is perhaps evidenced by cross links between the entriesīelow. The three communities, still live happily in parallel, mostly unaffectedīy the boring developments in the other. The increased power of hardware the notion of special Unix workstations hasĭisappeared in the 90s and has been replaced by public-domain Unix derivatives like Linux, Debian, Ubuntu etc. But the general picture has not changed all that much – the three main platforms are still the PC, the Macintosh, and Unix variants. Since I first compiled and sent the overview to a few colleagues in July 1994 (first posted on CVNet May 1995) there were uncountable revisions. This is an overview on what is available. How well do we see? How can visual function be described and which mechanisms can be thought to underly? Visual psychophysics tries to give answers to these general questions, and research in this area needs specialised software. Free Eye Movement Analysis Software (free).LandRate (post-experimental analysis) (Matlab) (free).EyeMMV (metrics & visualizations) (Matlab) (free).Test Battery of Attentional Performance (TAP).Durham Reading & Exploration Training (DREX).Event Related Potentials Analysis (free).Topographica, Param/ParamTk, and ImaGen (Python) (free)ĮEGLab, MNE Suite, BrainVision Analyzer, CarTool.Experimental Psychology Software (European vendor).PEBL (Psychology Experiment Building Language) (free).ERTS, ERTSLab, Cognition Lab, Cognition Lib (Browser & scripting language).Zien (Educational, iPad, Dutch only) (free).Open Perimetry Initiative (OPI) (R) (free).Ridgevue Letter Contrast Sensitivity Test (iPad).(E) Ophthalmology/Optometry/Neuroophthalmology GRTools (R), Leona's (Matlab), John McDonnell's (Python).RScore+, Calculator, Excel spreadsheet, ROC webpage, softROC, ROC demos.Psignifit3 (Python) / Psignifit4 (Matlab).PsyScope X, E-Prime, SuperLab, Presentation, etc.iGLWidgets Collection for Vision Science (educational).FechDeck - Exploring Psychophysics (educational).Schwartz & Krantz companion website (Browser).Visual World (Visuelle Welt, VIWO) (educational).iNSIGHT Color Mixing (educational, iPad).Visual Field Screening Test for Glaucoma.L-POST for Neuropsychological Screening.Perceptual Experimenting & General Psychology Jeda Editor for static and moving stimuli.StimuliApp (motion psychophysics) (iPhone, iPad).Colblindor color vision deficiency tests (Browser & Android).Variable-Coherence Random Dot Motion (Matlab).Open Perimetry Initiative (OPI) package (R).GERT (perceptual grouping) (Matlab/Octave).Image processing (IPRS, Gabor decomposition, QuIP, interactive website, teaching).Palamedes, FAST, Levitt's up/down (Matlab), ![]() Psychophysica, Psychometrica (Mathematica).Stimulus presentation from Matlab, Mathematica, Visual Basic etc.:.(B) Public Domain Applications for Psychophysics Monitors – Timing, Grayscale Resolution, OLEDs, Specific devices.The students were typically able to create their own projects in 2 h. Such testing will improve the approach with each semester. Stage 2 testing identified additional bugs to be corrected and new features to be considered to facilitate student understanding of the experiment model. Findings from the individual testing in Stage 1 resulted in significant changes to documentation and training materials and identification of bugs to be corrected. In both individual and classroom testing, the students learned to effectively use PEAK within 2 h, and were able to create a lexical decision experiment in under 10 min. Formal usability testing was done in two stages: (1) detailed coding of 10 individual subjects in one-on-one experimenter/subject videotaped sessions and (2) classroom testing of 64 undergraduates. The application then executes experiments with centisecond precision. Students fill in a spreadsheet listing of independent variables and stimuli, insert columns that represent experimental objects such as slides (presenting text, pictures, and sounds) and feedback displays to create complete experiments, all within a single spreadsheet. The Psychology Experiment Authoring Kit (PEAK) is a novel spreadsheet-based interface allowing students and researchers with rudimentary spreadsheet skills to create cognitive and cognitive neuroscience experiments in minutes. In academic courses in which one task for the students is to understand empirical methodology and the nature of scientific inquiry, the ability of students to create and implement their own experiments allows them to take intellectual ownership of, and greatly facilitates, the learning process. ![]()
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