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Auditory hallucination: Difference between revisions
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''' | An '''auditory hallucination''' can be described as the experience of hearing spontaneous imaginary noises.<ref name="Weinel2016">Weinel, J. (2016). Entoptic Phenomena in Audio: Categories of Psychedelic Electroacoustic Composition. Contemporary Music Review, 35(2), 202-223. https://doi.org/10.1080/07494467.2016.1221633</ref><ref name="Weinel2013">Weinel, J. (2013). Nausea: An approach to sonic arts composition based on ASC. In Proceedings of the fifth international conference on internet technologies & applications (pp. 169-176). http://www.jonweinel.com/PDF/Weinel_2013_Nausea.pdf</ref> The most common examples of this include hearing clips of sound such as imagined music,<ref name="Weinel2016"/><ref name="Weinel2013"/> voices,<ref name="Weinel2016"/><ref name="Weinel2013"/><ref name="Juszczak2013">Juszczak, G. R., & Swiergiel, A. H. (2013). Recreational use of D-lysergamide from the seeds of Argyreia nervosa, Ipomoea tricolor, Ipomoea violacea, and Ipomoea purpurea in Poland. Journal of psychoactive drugs, 45(1), 79-93. https://doi.org/10.1080/02791072.2013.763570</ref><ref name="Carbonaro2013">Carbonaro, T. M., Forster, M. J., & Gatch, M. B. (2013). Discriminative stimulus effects of N, N-diisopropyltryptamine. Psychopharmacology, 226(2), 241-246. https://doi.org/10.1007/s00213-012-2891-x</ref><ref name="Shulgin1980">Shulgin, A. T., & Carter, M. F. (1980). N, N-Diisopropyltryptamine (DIPT) and 5-methoxy-N, N-diisopropyltryptamine (5-MeO-DIPT). Two orally active tryptamine analogs with CNS activity. Communications in psychopharmacology, 4(5), 363-369. https://www.ncbi.nlm.nih.gov/pubmed/6949674</ref><ref name="Shulgin1997">Shulgin, A. T., & Shulgin, A. Transform Press; Berkeley, CA: 1997. TIHKAL: The Continuation.</ref> tones,<ref name="Weinel2016"/><ref name="Weinel2013"/> popping,<ref name="Weinel2016"/><ref name="Stanciu2016">N Stanciu, C., & M Penders, T. (2016). Hallucinogen Persistent Perception Disorder Induced by New Psychoactive Substituted Phenethylamines; A Review with Illustrative Case. Current Psychiatry Reviews, 12(2), 221-223. http://www.ingentaconnect.com/contentone/ben/cpsr/2016/00000012/00000002/art00013#expand/collapse</ref> and scraping,<ref name="Stanciu2016"/> but can also be an infinite variety of other potential noises that are stored within one's memory. | ||
In terms of their behaviour, these sounds will often be based on noises which were expected to occur or have been genuinely heard on a frequent basis within the external environment. For example, a person may repeatedly hear a knock at the door when they are expecting a visitor or may hear music which they were listening to earlier on in the day. However, at other times, auditory hallucinations may also present themselves as consisting of completely novel and alien sounds that are unlike anything which could currently occur within the external environment. | In terms of their behaviour, these sounds will often be based on noises which were expected to occur or have been genuinely heard on a frequent basis within the external environment. For example, a person may repeatedly hear a knock at the door when they are expecting a visitor or may hear music which they were listening to earlier on in the day. However, at other times, auditory hallucinations may also present themselves as consisting of completely novel and alien sounds that are unlike anything which could currently occur within the external environment. | ||
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This effect can be broken into two specific sub-types which are described and documented below: | This effect can be broken into two specific sub-types which are described and documented below: | ||
====Internal auditory | ====Internal auditory hallucination==== | ||
''' | An '''internal auditory hallucinations''' can be described as the perception of hallucinated audio that sounds as if the specific location of its source does not have a particular sense of distance or direction attributed to it and that the sound is instead occurring within a person's own head. This is in contrast to external auditory hallucinations, which sound as if they are occurring seamlessly within the external environment as if they were actually happening. | ||
The experience of this effect can be broken down into three distinct levels of intensity. These are described and documented below: | The experience of this effect can be broken down into three distinct levels of intensity. These are described and documented below: | ||
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====External auditory hallucinations==== | ====External auditory hallucinations==== | ||
''' | An '''external auditory hallucination''' can be described as the perception of a hallucinated nois that occurs seamlessly within the external environment as if the specific location of its source has a particular sense of direction and distance attributed to it. This is in stark contrast to internal auditory hallucinations that sound as if they occur exclusively within one's own head. | ||
This effect is capable of manifesting itself across the 4 different levels of intensity described below: | This effect is capable of manifesting itself across the 4 different levels of intensity described below: | ||