hallucinations and altered perceptions
type: Concept
definition: Sensory percepts may sometimes occur in the absence of adequate sensory stimulation. The most prominent examples of nonveridical percepts are hallucinations. [Source: Encyclopedia of Perception; Hallucinations and Altered Perceptions]
broader: illusory perceptions

illusory perceptions
type: Concept
narrower: hallucinations and altered perceptions

concepts
type: Collection
type: ConceptGroup
member: hallucinations and altered perceptions