Exceptional experiences (ExE) incorporate a range of phenomena including subjective paranormal and transpersonal experiences. Synesthesia and synesthetic experiences are discussed as important variables in understanding the etiologies of ExE. The neural and psychological correlates of synesthetic experiences (associated with hyperconnectivity) are discussed in relation to ExE. It is argued that synesthetic processes enable both the detection and conscious perception of information from a range of sources that are usually unseen or inaccessible, including abstract, unlanguaged, preconscious, and potentially other nonlocal sources.
AlvaradoC. S. (1994, August). Synesthesia and claims of psychic experiences: An exploratory study [Paper presentation]. 37th Annual Convention of the Parapsychological Association, Amsterdam, Netherlands.
2.
AlvaradoC. (1998). ESP and altered states of consciousness: An overview of conceptual and research trends. Journal of Parapsychology, 62, 27-63.
BanissyM. J.HolleH.CassellJ.AnnettL.TsakanikosE.WalshV.SpillerM. J.WardJ. (2013). Personality traits in people with synaesthesia: Do synaesthetes have an atypical personality profile?Personality and Individual Differences, 54(7), 828-831. https://doi.org/10.1016/j.paid.2012.12.018
BarnettK. J.FinucaneC.AsherJ. E.BargaryG.CorvinA. P.NewellF. N.MitchellK. J. (2008). Familial patterns and the origins of individual differences in synaesthesia. Cognition, 106(2), 871-893. https://doi.org/10.1016/j.cognition.2007.05.003
7.
BarrattE. L.DavisN. J. (2015). Autonomous sensory meridian response (ASMR): A flow-like mental state, PeerJ, 3, Article e851. https://doi.org/10.7717/peerj.851
8.
BarušsI.MossbridgeJ. (2017). Transcendent mind: Rethinking the science of consciousness. American Psychological Association. https://doi.org/10.1037/15957-000
9.
BelzM. (2012). Clinical psychology for people with exceptional experiences in practice. In Simmonds-MooreC. (Ed.), Exceptional experience and health: Essays on mind, body and human potential (pp. 223-241). McFarland.
10.
BelzM.FachW. (2012). Theoretical reflections on counseling and therapy for individuals reporting EE (exceptional experiences). In KramerW. H.BauerE.HövelmannG. H. (Eds.), Perspectives of clinical parapsychology (pp. 168-189). Stichting Het Johan Borgman Fonds.
11.
BrangD.RamachandranV. S. (2011). Survival of the synesthesia gene: Why do people hear colors and taste words?PLoS Biology, 9(11), e1001205. http://doi.org/10.1371/journal.pbio.1001205
12.
BrogaardB. (2013). Serotonergic hyperactivity as a potential factor in developmental, acquired and drug-induced synesthesia. Frontiers in Human Neuroscience, 7, Article 657. https://doi.org/10.3389/fnhum.2013.00657
13.
CardeñaE. (2005). The phenomenology of deep hypnosis: Quiescent and physically active. International Journal of Clinical and Experimental Hypnosis, 53(1), 37-59. https://doi.org/10.1080/00207140490914234
14.
Carhart-HarrisR. L.MuthukumaraswamyS.RosemanL.KaelenM.DroogW.MurphyK.NuttD. J. (2016). Neural correlates of the LSD experience revealed by multimodal neuroimaging. PNAS Proceedings of the National Academy of Sciences of the United States of America, 113(17), 4853-4858. https://doi.org/10.1073/pnas.1518377113
15.
CarpenterJ. C. (2004). First sight: Part one, a model of psi and the mind. Journal of Parapsychology, 68(2), 217-254.
16.
CharaP. J.Jr.GillettJ. N. (2004). Sensory images of god: Divine synesthesia?Journal of Psychology and Christianity, 23(3), 234-248.
17.
ChunC. A.HupéJ. (2016). Are synesthetes exceptional beyond their synesthetic associations? A systematic comparison of creativity, personality, cognition, and mental imagery in synesthetes and controls. British Journal of Psychology, 107(3), 397-418. https://doi.org/10.1111/bjop.12146
CrawleyS. E.FrenchC. C.YessonS. A. (2002). Evidence for transliminality from a subliminal card-guessing task. Perception, 31(7), 887-892. https://doi.org/10.1068/p3186
EttingerU.MohrC.GoodingD. CCohenA. S.RappA.HaenschelC.ParkS. (2015). Cognition and brain function in schizotypy: A selective review. Schizophrenia Bulletin, 41(Suppl. 2), S417-S426. https://doi.org/10.1093/schbul/sbu190
24.
EvansJ.LangeR.HouranJ.LynnS. J. (2019). Further psychometric exploration of the transliminality construct. Psychology of Consciousness: Theory, Research, and Practice, 6(4), 417-438. http://doi.org/10.1037/cns0000163
25.
FleckJ. I.GreenD. L.StevensonJ. L.PayneL.BowdenE. M.Jung-BeemanM.KouniosJ. (2008). The transliminal brain at rest: Baseline EEG, unusual experiences, and access to unconscious mental activity. Cortex, 44(10), 1353-1363. https://doi.org/10.1016/j.cortex.2007.08.024
26.
GreysonB. (2010). Implications of near-death experiences for a postmaterialist psychology. Psychology of Religion and Spirituality, 2(1), 37-45. https://doi.org/10.1037/a0018548
27.
GrossenbacherP. G.LovelaceC. T. (2001). Mechanisms of synesthesia: Cognitive and physiological constraints. Trends in Cognitive Science, 5(1), 36-41. https://doi.org/10.1016/S1364-6613(00)01571-0
28.
HoltN.Simmonds-MooreC.MooreS. L. (in press). Does latent inhibition underpin creativity, positive schizotypy and anomalous cognition?Journal of Parapsychology.
29.
HouranJ.KumarV. K.ThalbourneM. A.LavertureN. E. (2002). Haunted by somatic tendencies: Spirit infestation as psychogenic disease. Mental Health, Religion & Culture, 5(2), 119-133. https://doi.org/10.1080/13674670210141061
30.
HouranJ.WisemanR.ThalbourneM. A. (2002). Perceptual-personality characteristics associated with naturalistic haunt experiences. European Journal of Parapsychology, 17, 17-44.
31.
HuntH. T. (2005). Synaesthesia, metaphor and consciousness: A cognitive developmental perspective. Journal of Consciousness Studies, 12(12), 26-45.
32.
HuntH. T. (2012). A collective unconscious reconsidered: Jung’s archetypal imagination in the light of contemporary psychology and social science. Journal of Analytical Psychology, 57(1), 76-98. https://doi.org/10.1111/j.1468-5922.2011.01952.x
33.
IrwinH. J. (1985). Parapsychological phenomena and the absorption domain. Journal of the American Society for Psychical Research, 79(1), 1-11.
LevinR.GilmartinL.LamontanaroL. (1998). Cognitive style and perception: The relationship of boundary thinness to visual-spatial processing in dreaming and waking thought. Imagination, Cognition and Personality, 18(1), 25-41. https://doi.org/10.2190/4GBV-WAYQ-L0YR-RGCB
38.
LindemanM.SvedholmA. M.RiekkiT.RaijT.HariR. (2012). Is it just a brick wall or a sign from the universe? An fMRI study of supernatural believers and skeptics. Social Cognitive and Affective Neuroscience, 8(8), 943-949.
39.
LukeD.TerhuneD. (2013). The induction of synaesthesia with chemical agents: A systematic review. Frontiers of Psychology, 4, Article 753. https://doi.org/10.3389/fpsyg.2013.00753
40.
LukeD.ZychowiczK. (2014). Comparison of outcomes with nonintentional and intentional precognition tasks. Journal of Parapsychology, 78(2), 223-234.
41.
MarksL. E. (2014). Synesthesia: A teeming multiplicity. In CardeñaE.LynnS. J.KrippnerS. (Eds.), Varieties of anomalous experience: Examining the scientific evidence (2nd ed., pp. 79-108). American Psychological Association. https://doi.org/10.1037/14258-004
MarwahaS. B.MayE. (2015). Rethinking extrasensory perception: Toward a multiphasic model of precognition. SAGE Open, 5(1). https://doi.org/10.1177/2158244015576056
44.
MerikleP. M.SmilekD.EastwoodJ. D. (2001). Perception without awareness: Perspectives from cognitive psychology. Cognition, 79(1-2), 115-134. https://doi.org/10.1016/S0010-0277(00)00126-8
45.
MitchellK. J. (2013). Synesthesia and cortical connectivity. In SimnerJ.HubbardE. (Eds.), The Oxford handbook of synesthesia (pp. 530-557). Oxford University Press. https://doi.org/10.1093/oxfordhb/9780199603329.013.0027
46.
MossbridgeJ. A.TressoldiP.UttsJ.IvesJ. A.RadinD.JonasW. B. (2014). Predicting the unpredictable: critical analysis and practical implications of predictive anticipatory activity. Frontiers in human neuroscience, 8, Article 146. https://doi.org/10.3389/fnhum.2014.00146
47.
MurrayA. L. (2010). Can the existence of highly accessible concrete representations explain savant skills? Some insights from synaesthesia. Medical Hypotheses, 74(6), 1006-1012. https://doi.org/10.1016/j.mehy.2010.01.014
48.
MyersF. W. H. (1903-1904). Human personality and its survival of bodily death. Longmans.
49.
NairA.BrangD. (2019). Inducing synesthesia in non-synesthetes: Short-term visual deprivation facilitates auditory-evoked visual percepts. Consciousness and Cognition, 70(April), 70-79. https://doi.org/10.1016/j.concog.2019.02.006
50.
NelsonB.RawlingsD. (2010). Relating schizotypy and personality to the phenomenology of creativity. Schizophrenia Bulletin, 36(2), 388-399. http://doi.org/10.1093/schbul/sbn098
NovichS. D.EaglemanD. M. (2015). Using space and time to encode vibrotactile information: Toward an estimate of the skin’s achievable throughput. Experimental Brain Research, 233(10), 2777-2788. https://doi.org/10.1007/s00221-015-4346-1
53.
PalmerJ. (2015). Implicit anomalous cognition. In CardeñaE.PalmerJ.Marcusson-ClavertzD. (Eds.), Parapsychology: A handbook for the 21st century (pp. 215-229). McFarland.
54.
ParraA.Espinoza PaulL. (2009). Exploring the links between nocturnal hallucinatory experiences and personality characteristics. European Journal of Parapsychology, 242, 139-154.
55.
ParsonsS. T. (2012). Infrasound and the paranormal. Journal of the Society for Psychical Research, 76(908), 50-174.
56.
PriceM. C. (2013). “Synaesthesia, imagery and performance,” in Oxford Handbook of Synaesthesia eds Hubbard E., Simner J. (Oxford: Oxford University Press;) 728-757.
57.
RabeyronR.LooseT. (2015). Anomalous experiences, trauma, and symbolization processes at the frontiers between psychoanalysis and cognitive neurosciences. Frontiers in Psychology, 6, Article 1926. https://doi.org/10.3389/fpsyg.2015.01926
RamachandranV. S.HubbardE. M. (2001). Synaesthesia: A window into perception, thought and language. Journal of Consciousness Studies, 8(12), 3-34.
60.
RamachandranV. S.MillerL.LivingstoneM. S.BrangD. (2012). Colored halos around faces and emotion-evoked colors: A new form of synesthesia. Neurocase, 18(4), 352-358. https://doi.org/10.1080/13554794.2011.608366
61.
RhineL. E. (1953). Subjective forms of spontaneous Psi experiences. Journal of Parapsychology, 17, 77-114.
62.
RichA. N.MattingleyJ. B. (2013). The role of attention in synesthesia. In SimnerJ.HubbardE. (Eds), The Oxford handbook of synesthesia (pp. 265-282). Oxford University Press. https://doi.org/10.1093/oxfordhb/9780199603329.013.0014
63.
RouwR. (2013). Synesthesia, hyperconnectivity, and diffusion tensor imaging. In SimnerJ.HubbardE. (Eds.), The Oxford handbook of synesthesia (pp. 501-518). Oxford University Press. https://doi.org/10.1093/oxfordhb/9780199603329.013.0025
Simmonds-MooreC. A. (2010). Personality variables in spontaneous psi research: Contextualising the boundary construct in its relationship to spontaneous psi phenomena. In RoeC. A.KramerW.ColyL. (Eds.), Proceedings of an International Conference Utrecht II: Charting the future of parapsychology (pp. 151-215). Parapsychology Foundation.
66.
Simmonds-MooreC. A. (2013). Exploring the relationship between the synaesthesias and anomalous experiences [Unpublished final report]. 2014 Behind and Beyond the Brain symposium of the Bial Foundation, Porto, Portugal.
67.
Simmonds-MooreC. (2016). An interpretative phenomenological analysis exploring synesthesia as an exceptional experience: Insights for consciousness and cognition. Qualitative Research in Psychology, 13(4), 303-327.
68.
Simmonds-MooreC. A. (2019). Liminal spaces and liminal minds: Boundary thinness and participatory eco-consciousness. In HunterJ. (Ed.), Greening the paranormal: Exploring the ecology of extraordinary experience (pp. 109-126). August Night Press.
69.
Simmonds-MooreC. A. (unpublished study). Exploring the correlates and nature of subjective apparitional experiences [Paper presentation]. 61st Annual Convention of the Parapsychology Association, Institute of Noetic Sciences, CA. https://www.parapsych.org/photos/gallery/image/1460.aspx
70.
Simmonds-MooreC. A.AlvaradoC. S.ZingroneN. L. (2019). A survey exploring synesthetic experiences: Exceptional experiences, schizotypy, and psychological well-being. Psychology of Consciousness: Theory, Research, and Practice, 6(1), 99-121. http://doi.org/10.1037/cns0000165
71.
Simmonds-MooreC. A.O’GwinC.RiceD. (2019). My brain is cool: A thematic analysis of exceptional experiences among sceptics. Journal of the Society for Psychical Research, 83(4), 193-211.
72.
Simmonds-MooreC. A.RiceD.O’GwinC.HopkinsR. (2019). Exceptional experiences following exposure to a sham “God Helmet”: Evidence for placebo, individual difference, and time of day influences. Imagination, Cognition and Personality, 39(1), 44-87. https://doi.org/10.1177/0276236617749185
SpillerM. J.JonasC. N.SimnerJ.JansariA. (2015). Beyond visual imagery: How modalityspecific is enhanced mental imagery in synesthesia?Consciousness and Cognition, 31, 73-85. http://dx.doi.org/10.1016/j.concog.2014.10.010
77.
TaylorS. (2015). Energy and awakening: A psycho-sexual interpretation of Kundalini awakening. Journal of Transpersonal Psychology, 47(2), 219-241.
78.
TerhuneD. B. (2008). The incidence and determinants of visual phenomenology during out-of-body experiences. Cortex, 45(2), 236-242. https://doi.org/10.1016/j.cortex.2007.06.007
79.
TerhuneD. B.LukeD. P.KadoshR. C. (2017). The induction of synaesthesia in non-synaesthetes. In DeroyO. (Ed.), Sensory blending: On synaesthesia and related phenomena (pp. 215-247). Oxford University Press. https://doi.org/10.1093/oso/9780199688289.003.0012
80.
TerhuneD. B.LukeD. P.KaelenM.BolstridgeM.FeildingA.NuttD.WardJ. (2016). A placebo-controlled investigation of synaesthesia-like experiences under LSD. Neuropsychologia, 88(July), 28-34. https://doi.org/10.1016/j.neuropsychologia.2016.04.005
81.
TerhuneDBLukeDPKaelenMBolstridgeMFeildingANuttDCarhart-HarrisRWardJ. (2016). A placebo-controlled investigation of synaesthesia-like experiences under LSD. Neuropsychologia, 88:28-34. doi: 10.1016/j.neuropsychologia.2016.04.005. Epub 2016 Apr 5.
82.
TerhuneD. B.WudarczykO. A.KochuparampilP.KadoshR. C. (2013). Enhanced dimension-specific visual working memory in grapheme–color synesthesia. Cognition, 129(1), 123-137. https://doi.org/10.1016/j.cognition.2013.06.009
83.
ThalbourneM. A.HouranJ. M. A.AliasA. G. M. D.BruggerP. (2001). Transliminality, brain function, and synesthesia. Journal of Nervous and Mental Disease, 189(3), 190-192. http://doi.org/10.1097/00005053-200103000-00009
84.
ThalbourneM. A.MaltbyJ. (2008). Transliminality, thin boundaries, unusual experiences, and temporal lobe lability. Personality and Individual Differences, 44(7), 1617-1623. http://doi.org/10.1016/j.paid.2008.01.022
85.
Van LeeuwenT. M.SingerW.NikolićD. (2015). The merit of synesthesia for consciousness research. Frontiers in Psychology, 6, Article 1850. https://doi.org/10.3389/fpsyg.2015.01850
86.
WalshR. (2005). Can synesthesia be cultivated? Indications from Surveys of Meditators. Journal of Consciousness Studies, 12(4-5), 5-17.
87.
WardJ. (2019). Individual differences in sensory sensitivity: A synthesizing framework and evidence from normal variation and developmental conditions. Cognitive Neuroscience, 10(3), 139-157. https://doi.org/10.1080/17588928.2018.1557131
WardJ.HoadleyC.HughesJ. E. A.SmithP.AllisonC.Baron-CohenS.SimnerJ. (2017). Atypical sensory sensitivity as a shared feature between synaesthesia and autism. Scientific Reports, 7, Article 41155. https://doi.org/10.1038/srep41155
90.
WardJ.WrightT. (2014). Sensory substitution as an artificially acquired synaesthesia. Neuroscience & Biobehavioral Reviews, 41(April), 26-35. https://doi.org/10.1016/j.neubiorev.2012.07.007
91.
WilliamsC. (1997). The role of imagination in the construction of anomalous experience [Unpublished doctoral dissertation]. University of Edinburgh.
92.
WrightP. A. (1995). Bringing women’s voices to transpersonal theory. ReVision, 17(3), 3-11.
93.
YanakievaS.LukeD. P.JansariA.TerhuneD. B. (2019). Acquired synaesthesia following 2C-B use. Psychopharmacology, 236(7), 2287-2289. https://doi.org/10.1007/s00213-019-05242-y
94.
ZingroneN.AlvaradoC.AgeeN. (2009). Psychological correlates of aura vision: Psychic experiences, dissociation, absorption, and synaesthesia-like experiences. Australian Journal of Clinical and Experimental Hypnosis, 37(2), 131-168.
