Dataset contains functional observation of pupil size percent change after a light stimulus. Participants in the cannabis use group smoked cannabis flower or concentrate 40 minutes prior to the pupillometry measurement. Goal of this data is to understand differences in pupil response to light driven by acute cannabis users. Measurements were collected on the right eye.
Usage
data(pupil)Format
A tibble with 15000 rows and 10 variables:
- id
Factor. Subject identifier (127 unique levels).
- use_group
Character. Original usage group classification (e.g., "Daily - Flower", "No Use").
- use
Numeric. Binary indicator of cannabis use 40 minute prior to the light stimulus. (1 = user, 0 = non-user)
- age
Integer. Subject's age.
- gender
Numeric. Binary indicator of subject's gender: 1 = Female, 0 = Male.
- bmi
Numeric. Body Mass Index.
- alcohol
Numeric. Alcohol use score.
- seconds
Numeric. Time in seconds since light stimulus.
- percent_change_baseline
Numeric. Percent change relative to baseline.
- percent_change
Numeric. Percent change in the outcome of interest.
References
Godbole, S., Leroux, A., Brooks-Russell, A., Subramanian, P. S., Kosnett, M. J., & Wrobel, J. (2024). A Study of Pupil Response to Light as a Digital Biomarker of Recent Cannabis Use. Digital biomarkers, 8(1), 83–92. doi:10.1159/000538561