Complex sentence: Edward Colin Cherry (1914--1979) was a British cognitive scientist whose main contributions were in focused auditory attention, specifically regarding the cocktail party problem which concerns the problem of following only one conversation while many other conversations are going on around us.
Split into simpler sentences: Edward Colin Cherry (1914--1979) was a British cognitive scientist whose main contributions were in focused auditory attention, specifically regarding the cocktail party problem. This concerns the problem of following only one conversation while many other conversations are going on around us.