What are the main disorders related to perception?

I - Illusions (perception of an object in a distorted way)
II - Hallucinations (classically described as 'perceptions without an object')
III - Synesthesia (impression that the sensory perception of one organ resonates and is accompanied by a perception of another organ of the senses)
IV - Anosognosia (absence of awareness of the morbid state)
V - Macropsia (enlarged images), micropsia (reduced images), and terrifying zoopsias are observed in pathologies that involve an alteration of consciousness and vigilance (confusions, delirium tremens).