greg ellard jessicka doheny rachel cuttle and sorcha doyle n.
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Greg Ellard, Jessicka Doheny, Rachel Cuttle, and Sorcha Doyle. The Frog Who Croaked Blue; Aliens in the Family. Synaesthesia.

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Presentation Transcript
  • “A condition in which a sensory experience normally associated with one modality occurs when another modality is stimulated. To a certain extent such cross-modality experiences are perfectly normal; e.g. low-pitched tones give a sensation of softness or fullness while high-pitched tones feel brittle and sharp, the colour blue feels cold while red feels warm.”
  • “However, the term is usually restricted to the unusual cases in which regular and vivid cross-modality experiences occur.”
  • In other words. . . . .

Synaesthesia is where peoples senses can get a bit mixed up. It is like an extra sense.

  • There are at least sixty- one types of synaesthesia; two–sensory and multiple-sensory.
two sensory synaesthesia
Two-Sensory Synaesthesia
  • This is where two senses cross. It can be undirectional e.g. a word produces a colour, or bi-directional e.g. a word can produce both a colour and a sound. Such as where:
    • A smell produces the perception of a colour -> Coloured-Olfaction
    • A taste produces the perception of colour -> Coloured-Gustation
    • A sound produces the perception of colour -> Coloured-Hearing or Chromaesthesia
multiple sensory synaesthesia
Multiple-Sensory Synaesthesia
  • The experience of numbers that have their own colours -> Coloured-Numbers
  • The experience of letters as colours -> Coloured-Letters
  • The experience of colours when the individual hears words -> Coloured-Graphemes
  • The experience of numbers as shapes -> Shaped-Numbers
aliens in the family
Aliens in the Family
  • Written by Jamie Ward, and published 2008.
  • “People with synaesthesia experience the ordinary world in extraordinary ways.”
  • Most synaesthetesdon’t realise their condition, just as in the case of Debbie she did not discover she had synaesthesia until her mid-twenties.

Sometimes synaesthesia rules a persons life without them ever realising it; they will often name their children to fit their synaesthesia and choose their partners on this basis.

  • “The fact that synaesthesia runs in families doesn’t automatically make it genetic.” Although, there is scientific evidence of a genetic link to synaesthesia.

Even though synaesthesia runs in families it doesn’t mean all family members have the same form.

  • In the case of the identical twins Mary and Jacqueline, they had similar types of synaesthesia but saw different colours.
    • E.g. Mary sees “a” as green and Jacqueline sees it as red.
    • Yet again they didn’t realise they had synaesthesia until they were in their early twenties.
today s lecture
Today’s Lecture
  • The most common forms of synaesthesia, and the ones we will be looking at are:
    • Grapheme -> colour synaesthesia -> multiple-sensory
    • Chromaesthesia -> coloured hearing -> two-sensory
    • Coloured Gustation -> Taste as a colour -> two-sensory
  • This is where the individual experiences colour when they hear words.
  • This is where an non visual stimuli evokes the perception of a colour.
  • Such as seeing colour as you hear music.
coloured gustation
Coloured Gustation
  • When some synesthetes eat, the food evokes the perception of colour.

This is one of the tests for synaesthesia we came across:

  • Ward, J. (2008). The Frog Who Croaked Blue

(pp. 1 – 12). East Sussex: Routledge

  • Reber, A.S., & Reber E.S. (2001). The Penguin Dictionary of Psychology (p 732). London: Penguin Books.
  • Retrieved October 11, 2009, from:
  • Booth, S., Texas, S., & Licata, D. Synaesthesia.

Retrieved October 10, 2009, from: