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[[File:synn.png|thumb|right|350px|upright|Visual depiction of the blending of sensory input]]
<onlyinclude>
'''Synaesthesia''' is defined as a blending, merging or mixing of the senses. For example, alterations to sensory perception, such as seeing music, tasting colours, hearing smells or any other possible combination of the senses, are all possible. At its highest level, synaesthesia becomes so all encompassing that each of the senses become completely intertwined and experienced through all of the other senses. This is a complete blending of human perception and extremely profound when experienced. It is triggered spontaneously on most of the classical psychedelics and unconfirmed with dissociatives and deliriants. It is seemingly more common on stimulating psychedelics such as [[LSD]] or the [[2C-x]] family.
'''Synaesthesia''' (also spelled '''synesthesia''' or '''synæsthesia''') is a condition in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway.<ref>{{cite journal|title=Glossary of Technical Terms|journal=Diagnostic and statistical manual of mental disorders (5th ed.)|year=2013|pages=830|doi=10.1176/appi.books.9780890425596.GlossaryofTechnicalTerms}}</ref> For example, during this experience a person may begin seeing music, tasting colors, hearing smells, or any other potential combination of the senses.<ref>{{cite journal | vauthors=((Simner, J.)) | journal=Frontiers in Psychology | title=Why are there different types of synesthete? | volume=4 | pages=558 | date=2 September 2013 | url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3759026/ | issn=1664-1078 | doi=10.3389/fpsyg.2013.00558}}</ref> At its highest level, synaesthesia becomes so all-encompassing that each of the senses become completely intertwined with and experienced through all of the other senses. This is a complete blending of human perception and is usually interpreted as extremely profound when experienced. It is worth noting that a significant percentage of the population experience synaesthesia to varying extents during every day life without the use of drugs.<ref>{{cite journal | vauthors=((Simner, J.)), ((Mulvenna, C.)), ((Sagiv, N.)), ((Tsakanikos, E.)), ((Witherby, S. A.)), ((Fraser, C.)), ((Scott, K.)), ((Ward, J.)) | journal=Perception | title=Synaesthesia: the prevalence of atypical cross-modal experiences | volume=35 | issue=8 | pages=1024–1033 | date= 2006 | issn=0301-0066 | doi=10.1068/p5469}}</ref><ref>{{cite journal | vauthors=((Niccolai, V.)), ((Jennes, J.)), ((Stoerig, P.)), ((Van Leeuwen, T. M.)) | journal=The American Journal of Psychology | title=Modality and variability of synesthetic experience | volume=125 | issue=1 | pages=81–94 | date= 2012 | issn=0002-9556 | doi=10.5406/amerjpsyc.125.1.0081}}</ref>


Synaesthesia is commonly induced under the influence of [[Dosage classification#Heavy|heavy]] [[dosage|dosages]] of [[psychedelic]] compounds,<ref>{{cite journal | vauthors=((Luke, D. P.)), ((Terhune, D. B.)) | journal=Frontiers in Psychology | title=The induction of synaesthesia with chemical agents: a systematic review | volume=4 | pages=753 | date=17 October 2013 | url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3797969/ | issn=1664-1078 | doi=10.3389/fpsyg.2013.00753}}</ref> such as [[LSD]], [[psilocybin]], and [[mescaline]]. However, it is seemingly most commonly experienced under the influence of [[stimulation|stimulating]] psychedelics such as the [[2C-x]], [[DOx]], and [[Nbome|NBOMe]] series.
</onlyinclude>
===Psychoactive substances===
Compounds within our [[psychoactive substance index]] which may cause this effect include:
{{#ask:[[Category:Psychoactive substance]][[Effect::Synaesthesia]]|format=ul|Columns=2}}
===Experience reports===
Anecdotal reports which describe this effect within our [[experience index]] include:
{{#ask:[[Category:Experience]][[Effect::Synaesthesia]]|format=ul|Columns=1}}
===See also===
===See also===
*[[Responsible use]]
*[[Subjective effects index]]
*[[Psychedelics#Subjective_effects|Psychedelics - Subjective effects]]
*[[Psychedelics#Subjective_effects|Psychedelics - Subjective effects]]
*[[Dissociatives#Subjective_effects|Dissociatives - Subjective effects]]
*[[Dissociatives#Subjective_effects|Dissociatives - Subjective effects]]
*[[Deliriants#Subjective_effects|Deliriants - Subjective effects]]
*[[Deliriants#Subjective_effects|Deliriants - Subjective effects]]
===External links===
*[https://en.wikipedia.org/wiki/Synesthesia Synesthesia (Wikipedia)]
*[https://en.wikipedia.org/wiki/Ideasthesia Ideasthesia (Wikipedia)]
===References===
<references />
[[category:Sensory]]
[[category:Multisensory]]
[[category:Effect]]
{{#set:Featured=true
|Belongs to=Miscellaneous effects
}}

Latest revision as of 14:40, 12 July 2025

Synaesthesia (also spelled synesthesia or synæsthesia) is a condition in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway.[1] For example, during this experience a person may begin seeing music, tasting colors, hearing smells, or any other potential combination of the senses.[2] At its highest level, synaesthesia becomes so all-encompassing that each of the senses become completely intertwined with and experienced through all of the other senses. This is a complete blending of human perception and is usually interpreted as extremely profound when experienced. It is worth noting that a significant percentage of the population experience synaesthesia to varying extents during every day life without the use of drugs.[3][4]

Synaesthesia is commonly induced under the influence of heavy dosages of psychedelic compounds,[5] such as LSD, psilocybin, and mescaline. However, it is seemingly most commonly experienced under the influence of stimulating psychedelics such as the 2C-x, DOx, and NBOMe series.


Psychoactive substances

Compounds within our psychoactive substance index which may cause this effect include:

... further results

Experience reports

Anecdotal reports which describe this effect within our experience index include:

See also

References

  1. "Glossary of Technical Terms". Diagnostic and statistical manual of mental disorders (5th ed.): 830. 2013. doi:10.1176/appi.books.9780890425596.GlossaryofTechnicalTerms. 
  2. Simner, J. (2 September 2013). "Why are there different types of synesthete?". Frontiers in Psychology. 4: 558. doi:10.3389/fpsyg.2013.00558. ISSN 1664-1078. 
  3. Simner, J., Mulvenna, C., Sagiv, N., Tsakanikos, E., Witherby, S. A., Fraser, C., Scott, K., Ward, J. (2006). "Synaesthesia: the prevalence of atypical cross-modal experiences". Perception. 35 (8): 1024–1033. doi:10.1068/p5469. ISSN 0301-0066. 
  4. Niccolai, V., Jennes, J., Stoerig, P., Van Leeuwen, T. M. (2012). "Modality and variability of synesthetic experience". The American Journal of Psychology. 125 (1): 81–94. doi:10.5406/amerjpsyc.125.1.0081. ISSN 0002-9556. 
  5. Luke, D. P., Terhune, D. B. (17 October 2013). "The induction of synaesthesia with chemical agents: a systematic review". Frontiers in Psychology. 4: 753. doi:10.3389/fpsyg.2013.00753. ISSN 1664-1078.