Penumbra (Words Fail Me)

Wood, plastic, ink and paint on board

Stroke (especially on the left-side of the brain) is often accompanied by a condition called Aphasia which affects language understanding (listening, reading) and production (writing, speaking). The speech or word bubbles in the white circle show words that might come more easily following stroke: simple, automatic or highly emotive expressions. Those in the grey penumbra - more specific or abstract nouns, people's names, verb tenses etc - are harder to retrieve.