Skills

R

Statistics

Eyetracking

Selected Publications

Eye-tracking is widely used throughout the scientific community, from vision science and psycholinguistics, to marketing and human-computer interaction. Surprisingly, there is little consistency and transparency in pre-processing steps, making replicability difficult. To increase replicability and transparency, a package in R (a free and widely used statistical programming environment) called gazeR was created to read in and preprocess two types of data from the SR EyeLink eye tracker: gaze position and pupil size. For gaze position data, gazeR has functions for: reading in raw eye-tracking data, formatting it for analysis, converting from gaze coordinates to areas of interest, and binning and aggregating data. For data from pupillometry studies, the gazeR package has functions for: reading in and merging multiple raw pupil data files, removing observations with too much missing data, eliminating artifacts, blink identification and interpolation, subtractive baseline correction, and binning and aggregating data. The package is open-source and freely available for download and installation: https://github.com/dmirman/gazer. We provide step-by-step analyses of data from two tasks exemplifying the package’s capabilities.
2019

Recent Publications

Eye-tracking is widely used throughout the scientific community, from vision science and psycholinguistics, to marketing and …

Semantic cognition includes taxonomic and thematic relationships, as well as control systems to retrieve and manipulate semantic …

Despite the critical importance of close replications in strengthening and advancing scientific knowledge, there are inherent …

When exposed to words presented under perceptually disfluent conditions (e.g., words written in Haettenschweiler font), participants …

Do students learn better with material that is perceptually harder-to-process? Previous research has been equivocal concerning this …

Prior research by Hartwig and Dunlosky [(2012). Study strategies of college students: Are self-testing and scheduling related to …

Answering questions before a learning episode-prequestions-can enhance memory for that information. A number of studies have explored …

A core assumption underlying competitive-network models of word recognition is that in order for a word to be recognized, the …

Psychological scientists have recently started to reconsider the importance of close replications in building a cumulative knowledge …

Posts

This is an R markdown file explaining pupil preprocessing functions contained in the gazeR package. The example dataset is from a …

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