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Word formation CEFR B2 Topic: Synesthesia and the blending of the senses

Colours in Sound: The World of Synesthesia

What this tests: word building — prefixes, suffixes, negative forms and changing a word's part of speech.

Instructions

For questions 1–8, use the word in capitals at the end of each line to form a word that fits the gap in the same line.

Synesthesia is a fascinating neurological condition in which the STIMULATE of one sense triggers an automatic experience in another.

For example, some people CONSISTENT associate specific numbers with particular colours, while others taste words as they read them.

Scientists once dismissed such accounts as SCIENCE, little more than overactive imagination,

but brain-imaging studies have since provided strong EVIDENT that synesthetic perceptions are genuine and involuntary.

Early researchers who ESTIMATE the phenomenon, treating it as a rare curiosity, were later proved wrong, since surveys now suggest it may affect around one in twenty people.

The condition also appears to run in families, pointing to a GENE component, although,

because the exact mechanism remains CERTAIN, environmental factors cannot yet be ruled out.

Interestingly, many synesthetes describe their blended senses not as a DISABLE but as a gift that enriches everyday life, from music to mathematics, and far from feeling isolated, they often form supportive online communities.

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🎬 Video walkthrough

This exercise read aloud, sentence by sentence: a pause to answer each question, the hint after the pause, then the answer and why. It gives the answers — try the exercise first.

9 min. All video walkthroughs