Julia Simner

TL;DR: The first test of synaesthesia prevalence with sampling that does not rely on self-referral, and which uses objective tests to establish genuineness is presented, and it is suggested that female biases reported earlier likely arose from (or were exaggerated by) sex differences in self-disclosure.

TL;DR: It is shown that biases exist in the associations of letters with colours across individuals both with and without grapheme-colour synaesthesia, and that graphemed people tend to associate higher frequency graphemes with higher frequency colour terms.

TL;DR: Evidence is presented that might argue against previous claims that synaesthesia is a 'merging of the senses', which gives rise to consistent synaesthetic associations over time and the possible benefits of moving from a behavioural definition to a neurobiological one and the ways in which this might force a rethink about the potential outermost boundaries of this fascinating condition.

TL;DR: The results suggest that synaesthesia does not simply reflect innate connections from one perceptual system to another, but that it can be mediated and/or influenced by a symbolic/conceptual level of representation.

TL;DR: The presence of synaesthetic colour sensations enhances the tendency to explicitly represent numbers in a visuo-spatial format although the two symptoms may nevertheless be logically independent (i.e. it is possible to have number forms without colour, and coloured numbers without forms).