illusion implies a false ascribing of reality based on what one sees or imagines. hallucination implies impressions that are the product of disordered senses, as because of mental illness or drugs. mirage in its extended sense applies to an illusory vision, dream, hope, or aim.
An illusion is distinguished from a hallucination, an experience that seems to originate without an external source of stimulation. Neither experience is necessarily a sign of psychiatric disturbance, and both are regularly and consistently reported by virtually everyone.
illusion, hallucination, delusion refer to false perceptions or ideas. An illusion is a false mental image produced by misinterpretation of things that actually exist: A mirage is an illusion produced by reflection of light against the sky.
An illusion is a distortion of the senses, which can reveal how the mind normally organizes and interprets sensory stimulation. Although illusions distort the human perception of reality, they are generally shared by most people. [1]
An illusion is something that appears to exist or be a particular thing but does not actually exist or is in reality something else. Floor-to-ceiling windows can look stunning, giving the illusion of extra height.
Well-known illusions include the Muller-Lyer illusion, Ebbinghaus illusion, and the Moon illusion. Fictional illusions are defined as the perception of objects that are genuinely not there to all but a single observer, such as those induced by schizophrenia or a hallucinogen. [3]
We saw what looked like a tiger among the trees, but it was an illusion caused by the shadows of the branches. Using artificial additives, scientists can create the illusion of fruit flavours in food.