How knowledge can stimulate but also impede creativity. Pier Vittorio Mannucci - ©Fotolia - Elxeneize

An insightful study provides a response to the long-standing question of why people's creativity varies over time. It shows that the ability to generate new ideas is related to knowledge depth, knowledge breadth, and cognitive complexity and flexibility. The prominence of each of these factors varies over time, so fostering creativity depends on adapting stimuli accordingly. 

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