Visual (flash) and sound (beep) stimuli were presented with different combinations: multiple flash trials where a single beep caused the perception of less flashes, "fusion illusions" and trial where multiple beeps with single flash, induced perception of more flashes, "fission illusion".
Perhaps one of the best-known illustrations of closure is the Kanizsa figure [7] that induced perception of an object, for example, a triangle or a rectangle, by a circular disk with wedges cut out (i.e., Pac-man) and oriented in such a way that extension of the wedges forms the object.
In apparent biological motion (ABM), alternating between static images of initial and final positions of a movement induces perception of a plausible movement as long as the stimulus onset asynchrony (SOA) between the images is consistent with actual movement duration (Shiffrar and Freyd 1990 , 1993 Grosjean et al. 2007).
Therefore, the conclusion by Riskind and Maddux that "experimentally induced perceptions of looming motion...influenced perceptions of fear" (p. 82) may be inaccurate.
Indeed, the notch mode of presentation is so powerful at inducing the perception of illusory contours that it may induce object perception that is qualitatively similar to that of real objects.
Waterboarding, admittedly the most serious of the methods, is designed, according to Jay Bybee, to induce the perception of "suffocation and incipient panic, i.e. the perception of drowning".
Besides rubber hand illusion and its revised version, virtual hand illusion is another way to induce body perception illusion.
Open-plan offices are equipped with barriers such as panels and bookshelves to induce the perception of a private workspace.
In 1998 Aurora et al. using single-pulse TMS investigated the excitability of the visual cortex evaluating the stimulation intensity needed to induce the perception of phosphenes (phosphene threshold: PT).
