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Kooijman, L. (author), Dodou, D. (author), Jansen, S. T. (author), Themans, T. S. (author), Russell, J. N.M. (author), Petermeijer, S.M. (author), Doorman, J. R.C. (author), Hablé, J. H. (author), Neubert, D. S. (author), Vos, M. J.C. (author), de Winter, J.C.F. (author)Much psychological research uses pupil diameter measurements to investigate the cognitive and emotional effects of visual stimuli. A potential problem is that accommodating at a nearby point causes the pupil to constrict. This study examined to what extent accommodation is a confounder in pupillometry research. Participants solved...journal article 2021
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de Winter, J.C.F. (author), Petermeijer, S.M. (author), Kooijman, L. (author), Dodou, D. (author)Several papers by Eckhard Hess from the 1960s and 1970s report that the pupils dilate or constrict according to the interest value, arousing content, or mental demands of visual stimuli. However, Hess mostly used small sample sizes and undocumented luminance control. In a first experiment (N = 182) and a second preregistered experiment (N =...journal article 2021