lexsync: Lexical optimisation and hardware-timed experiment generation

Overview

lexsync turns a lexical design into a checked set of stimuli and experiment files. It separates the candidate corpus from the design specification, reports whether matching and counterbalancing succeeded, and carries the resulting item table into PsychoPy, OpenSesame or jsPsych. The shared R/Python format makes the design inspectable before presentation software is involved.

Illustrative output

The balance plot makes the main quality-control question visible: do the conditions differ on the intended frequency measure while remaining comparable on the controls selected by the researcher?

Reproducible hand-off

Save the design, the source lexicon, the matching report and the generated experiment together. Before recording EEG, verify the exported timing, trigger codes, trial order and counterbalancing in the target presentation framework. The R documentation, Python documentation and companion blog post provide the complete workflow.

Reference

Bernabeu, P. (2026). lexsync: Lexical optimisation and hardware-timed experiment generation (Version 0.1.0) [Computer software]. https://github.com/pablobernabeu/lexsync