Abstract
In the introduction the importance of illusions is illustrated as being a peephole through which the processes of sensation and perception can be watched. Three illusions will exemplify this, one for the visual modality (the goose orientation illusion), one for the tactile modality (Aristotle's illusion), and one for the auditory modality (streaming illusion). Subsequently, three “classic” time illusions are discussed: 1 - illusion of a divided time interval, 2 - subjective rhythmization, and 3 - the kappa effect. These latter three illusions are dealt with in view of more recent studies.
