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AP Psychology
A subjective experience of hearing a continuous or intermittent ringing, buzzing, or humming sound in the absence of an external source.
Auditory hallucinations: False perceptions of sounds without any external auditory stimulation.
Phantom limb pain: Sensation of pain in a missing or amputated body part.
Cross-sensory perception where one sensory stimulus triggers an involuntary experience in another sensory modality.