General These are the data, stimulus code, and analysis code from a project on expectations in unattended items, and how they might impact behavior concerning attended items. These are two experiments that never got published. Instead, a manuscript summarizing the project - and how it didn't work out - is shared here (in the "Manuscript" folder), as well as through my personal website ("file drawer" section). Data Behavioral data for each subject (in both experiments) is stored in four separate files. (1) S00_FusionColors.mat hold the 4 colors measured to be perceptually equiluminant for each subject. (2) S00_Practice.mat holds the data collected while subjects practiced the task. (3) S00_Thresholds.mat holds the individual subject thresholds (measured with quest). And finally, (4) S00_MainTask.mat holds the data collected during the two days that subjects did the main experimental task. Note: For Experiment 2 there is a "V2" added to the end of each datafile string to indicate this is the second version of the experiment. Stimulus Code The original experimental scripts (using Matlab & the Psychtoolbox) used to run the experiments at UC San Diego consist of four scripts per experiment. These four scripts correspond to the four data files saved out per subject and have in their names: (1) *FlickerFusion.m (2) *Practice.m (3) *Thresholding.m and (4) *MainTask.m. The monitor was gamma corrected, and this correction differs from monitor to monitor, which is why we have not supplied the gamma lookup table (run this code after commenting out the lines where this correction is applied – or replace it with your own correction). To run successfully you need to create a folder called "Data" in the same directory from which you will run the stimulus script. Helper function required to run this code can be found in the folder "HelperFunctions". Analysis Code I've written the main analysis looking into the main question, namely if statistical regularities in unattended items impact how people respond to attended items. I've done som eadditional stuff too, but there might be more in the data for people to explore is desired. Feel free to start from here, or check my work, etc. Experiment Instructions Also attached are the instructions given to the research assistants running this experiment ("INSTRUCTIONS_E*.pdf") as well as the instruction sheet shown to the participants to explain the task ("SubjectInstructionSheet.pdf")