Processed AOI-level eye-tracking and questionnaire data for Kansei-based coffee packaging optimization

This dataset supports the Scientific Reports manuscript entitled "Kansei-based optimization increases visual accessibility of semantic cues in coffee packaging". The package contains de-identified participant-stimulus questionnaire records, processed AOI-level eye-tracking exports, stimulus images, qualitative heatmap visualizations, conceptual AOI documentation, data dictionaries, row-count verification files, a SHA-256 file inventory, and a statistical appendix with sensitivity analyses. The eye-tracking component should be interpreted as processed AOI-level data rather than complete native Tobii project data. Native Tobii project files, sample-level 120-Hz gaze streams, native tracking-ratio/sample-validity fields, participant-level calibration-error values, fixation-identification/filter settings, native Tobii AOI masks, and exact stimulus exposure-duration records are not included in this archive.