Tag: hallucination


Acousma: Decoding the Mystery of Phantom Sounds

Acousma: Decoding the Mystery of Phantom Sounds

Definition and Etymology of Acousma Acousma, a specialized term within clinical audiology and psychiatry, refers specifically to an unformed, non-verbal auditory hallucination, defined by the subjective perception of sound in the absence of any corresponding external acoustic stimulus. Unlike complex auditory hallucinations, which involve structured sounds such as voices, music, or recognizable environmental noises, acousmata […]

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Photism: Exploring the Psychology of Perceived Light

Photism: Exploring the Psychology of Perceived Light

Introduction and Definition of Photism The term photism, derived from the Greek word *phos* meaning light, occupies a complex and sometimes ambiguous position within psychological and neurological literature. Broadly defined, a photism is a phenomenon involving the sensation or perception of light or color. However, its usage is bifurcated, referring to two distinct categories of […]

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