We discuss first the results of this study: "Kvašňák, E., Orendáčová, M., & Vránová, J. (2022). Phosphene Attributes Depend on Frequency and Intensity of Retinal tACS. Physiological research, 71(4), 561–571. https://doi.org/10.33549/physiolres.934887" The study is extremely valuable to define the form constants which can be percieved with closed eyes, as internal light phenomena. We will then generate a … Continue reading A New Taxonomy of Klüver Form Constants based on new subjective reports of phosphenes induced by transcranial stimulation