Table 1.

Subjective reports of synaesthetic colour experiences

Question	S1	S2	S3	S4	S5	S6	S7	S8
The colour is out in space						⋄		⋄
The colour is in my mind's eye	⋄	⋄	⋄	⋄		⋄		⋄
Neither
When I look at a letter or number I see a colour	++	–	–	–	+b	+	+	++
When I look at a letter or number I get a feeling of a colour	++	+	+	+	–	+	+	–
The colour has the same shape as the letter or number	+	++		—	++	++	++	++
The colour is some other shape	–	—	—		—	—	—	–
The colour looks like it is on the page	–		—	–	—	+		++
The colour is not on the page, but it is out there in space	–	—		–	—	+	—	—
The colour is in my mind's eye	++	+	++	++	++	+	++	—
When I imagine a letter or number the colour is the same as when I look at the letter or number on the page	++	++	—		++	–	+	+

S1–S8 denote synaesthetes. The first three questions required Yes/No responses. A diamond represents a Yes response. Note that S6 and S8 fit the “projector” description. To the other questions, participants responded on a 5-point scale (—) = strongly disagree, (–) = disagree, () = neither agree nor disagree, (+) = agree, (++) = strongly agree.

^aThe elaborated report was: “It looks like it is on the page but I know that it's not.” ^bThe synaesthetic colours of this synaesthete are particularly triggered by hearing the stimuli.