Abstract
The goal of the experiment was to establish pupil size variations while viewing and reporting 48 affective (IAPS) pictur es. The experiment consisted of 44 students. Pictures appeared on the screen for 20 secs in random order. After reporting the SAM (Self-Assessment Manikin), the participants orally reported on the pictures. In the phase of picture viewing, the unpleasant pictures revealed larger pupillary responses than neutral and pleasant pictures (p<.001). The mean pupil size was at its great est also during the reporting of unpleasant pictures (p< .001). Results indicated that the differences in pupil size variations endure from the viewing phase to the reporting phase of pictures.
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