Luminance and timing control during visual presentation of natural scenes

Andrea De Cesarei; Michele Marzocchi; Maurizio Codispoti

doi:10.1016/j.ohx.2022.e00376

Luminance and timing control during visual presentation of natural scenes

HardwareX. 2022 Nov 14:12:e00376. doi: 10.1016/j.ohx.2022.e00376. eCollection 2022 Oct.

Authors

Andrea De Cesarei¹, Michele Marzocchi¹, Maurizio Codispoti¹

Affiliation

¹ Alma Mater Studiorum - University of Bologna, Department of Psychology, Viale Berti Pichat 5, 40127 Bologna, Italy.

Abstract

In the study of visual cognition, accurate control of stimulus presentation is of primary importance yet is complicated by hardware malfunctioning, software variability, and visual materials used. Here, we describe VISTO 2.0, a low-cost and open-source device which is capable to measure the timing and temporal luminance profile of visual stimuli. This device represents a major improvement over VISTO (De Cesarei, Marzocchi, & Loftus, 2021), as it is only sensitive to a light spectrum in the visible range, is easier to assemble, and has a modular design that can be extended to other sensory modalities.

Keywords: Exposure time; Luminance profile; Visual processing.