Machine generated contents note: Introduction: is synaesthesia normal?; 1. Exploring the structure and distribution of linguistic-colour associations in the concrete-abstract and strong-weak dimensions; 2. Reconciling objective and subjective assessments of linguistic-colour associations: exploring the relationships between linguistic-colour synaesthesia and self-related sensing, body lateralization and gender; 3. Cognitive determinants of linguistic-colour associations; 4. Relationships between linguistic-colour synaesthesia and individual differences in absorption, creative thinking, types of mind and intelligence; 5. Exploring the relationships between linguistic-colour associations and self-reported traits of personality and temperament; General conclusions; Appendices.