@article{Christopher2019, author = "Edward A Christopher", title = "{Using Pupillometry to Observe Covert Mental Activity during Prospective Memory Tasks}", year = "2019", month = "5", url = "https://hammer.purdue.edu/articles/thesis/Using_Pupillometry_to_Observe_Covert_Mental_Activity_during_Prospective_Memory_Tasks/8021075", doi = "10.25394/PGS.8021075.v1" }