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An auditory hallucination, or paracusia, [1] is a form of hallucination that involves perceiving sounds without auditory stimulus. While experiencing an auditory hallucination, the affected person hears a sound or sounds that did not come from the natural environment. A common form of auditory hallucination involves hearing one or more voices ...
These hallucinations are the most common type of hallucination, with auditory verbal hallucinations being more common than nonverbal. [18] [19] Elementary hallucinations are the perception of sounds such as hissing, whistling, an extended tone, and more. [20] In many cases, tinnitus is an elementary auditory hallucination. [19]
Musical hallucinations. Musical hallucinations (also known as auditory hallucinations, auditory Charles Bonnet Syndrome, and Oliver Sacks' syndrome [1]) describes a neurological disorder in which the patient will hallucinate songs, tunes, instruments and melodies. The source of these hallucinations are not correlated with psychotic illness. [2]
However, normal subjects also report auditory hallucinations to a surprising extent. For example, Bentall and Slade [22] found that as many as 15.4% of a population of 150 male students were prepared to endorse the statement "In the past I have had the experience of hearing a person's voice and then found that no one was there". They add:
Pseudohallucination. A pseudohallucination (from Ancient Greek: ψευδής (pseudḗs) "false, lying" + "hallucination") is an involuntary sensory experience vivid enough to be regarded as a hallucination, but which is recognised by the person experiencing it as being subjective and unreal. By contrast, a "true" hallucination is perceived as ...
Auditory hallucinations have two essential components: audibility and alienation. [7] This differentiates it from thought insertion. While auditory hallucination does share the experience of alienation (patients cannot recognize that the thoughts they are having are self-generated), thought insertion lacks the audibility component (experiencing the thoughts as occurring outside of their mind ...
Hypnagogia is the transitional state from wakefulness to sleep, also defined as the waning state of consciousness during the onset of sleep. Its opposite state is described as hypnopompia – the transitional state from sleep into wakefulness. Mental phenomena that may occur during this "threshold consciousness" phase include hypnagogic ...
This is an example of plasticity gone awry. Those with lesions on the temporal lobe, often brought about by a stroke but also from trauma to the head, also experience these olfactory hallucinations. Other leading causes of phantosmia include neurological disorders such as schizophrenia and Alzheimer's disease. Both of these disorders have well ...