Synesthesia (also spelled synæsthesia or synaesthesia; from the Ancient Greek σύν syn, "together", and αἴσθησις aisthēsis, "sensation") is a neurological phenomenon in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway. People who report such experiences are known as synesthetes.
In one common form of synesthesia, known as grapheme → color synesthesia or color-graphemic synesthesia, letters or numbers are perceived as inherently colored. In spatial-sequence, or number form synesthesia, numbers, months of the year, and/or days of the week elicit precise locations in space (for example, 1980 may be "farther away" than 1990), or may appear as a three-dimensional map (clockwise or counterclockwise).
| User |
Variation |
 TiffR |
None |
| C. Carolus MacPherson |
Grapheme-color, spatial-sequence, chromesthesia (sound --> color), number form |
| atelepen |
None |
 Duarte Molha |
None |
| Ryan Bailey Williams |
None |
| Jason Wallace |
None |
| Red Rover |
None |
| Marco |
None |
 Anaro Lexnon |
None |
| Traci |
None |
| Q Bargo |
None |
| Mary |
None |
| Anneke9 |
None |
 Gollaher@gmail.com |
None |
| James |
Grapheme-color, spatial-sequence, chromesthesia (sound --> color), number form |
| Ramon |
Unespected sound to visual |
 Beau Gunderson |
None |
| Rosemarie Russell |
None |
| Jason W. |
Grapheme-color, spatial-sequence, chromesthesia (sound --> color), number form |
| Daniel Hjertholm |
None |
| Passa |
None |
 John A Kuehn |
None |
| dbert |
None |
| Lauren Lupton |
None |
| Daniel |
None |
| Sparklingether |
None |
| sean |
None |
| Mark |
None |
 J Smith |
None |
 Kristen L. Ramsay |
None |
| Lauren |
Unespected sound to visual |
| B |
None |
| Ilan |
Grapheme->color, size, tactile; sound->shape, tactile; ordinal linguistic personification |
 R.Ridderbusch |
Mild |
| Duane Kaufman |
None |
| yenelli cedano |
None |
 Traci |
None |
| laschai |
None |
 stephen bradley |
None |
| Alexander Richards |
None |
| evitti |
None |
 correybarone |
None |
 jbearden@ieee.org |
None |
| DemonRaven |
None |
| Sarah Pence |
Mild |
 KurtGreis |
None |
| mboehl |
Grapheme->color, size, tactile; sound->shape, tactile; ordinal linguistic personification |
 Denatonium |
Grapheme->color, size, tactile; sound->shape, tactile; ordinal linguistic personification |
| Violet101 |
Spatial-Sequence |
| Whynot |
None |
| silvestro03 |
None |
| genephobia |
None |
| ceanzi |
Mild |
| atj |
None |
| Chris1507 |
Unespected sound to visual |
 penzina |
None |
 Taed Wynnell |
None |
| andygb1947 |
None |
 jellicoe1992 |
None |
 Kaley White |
None |
| criniss |
None |
| jcorreia |
Grapheme->color, size, tactile; sound->shape, tactile; ordinal linguistic personification |
| Rebecka |
Mild |
| Vicky |
Mild |
| owl |
No |
| Takiwatanga |
None |
 blackbookprojects |
Grapheme-color, spatial-sequence, chromesthesia (sound --> color), number form |
| Noahdeal |
Grapheme->color, size, tactile; sound->shape, tactile; ordinal linguistic personification |
| hanasoph |
Yes |
| otis |
Emotional impression => smell |
| akwalker |
None |
| hopejade |
Grapheme->color, size, tactile; sound->shape, tactile; ordinal linguistic personification |
| battletroll79 |
No |
| Brent |
Yes |
| Perryer |
No |
| Damien |
Yes |
