Researchers, including those from University of Technology Sydney in Australia, had 155 participants complete questionnaires and split them into experimental groups.
Each group listened to one of four different types of music that were categorised as calm, happy, sad, or anxious, depending on their emotional valence (positive, negative) and arousal (high, low), while one control group listened to silence.
After the music started playing, participants performed various cognitive tasks that tested their divergent and convergent creative thinking.
Researchers found that listening to happy music, which they define as classical music that is positive valence and high in arousal, facilitates more divergent creative thinking compared to silence.
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The variables involved in the happy music condition may enhance flexibility in thinking, so that additional solutions might be considered by the participant that may not have occurred to them as readily if they were performing the task in silence, researchers said.
The study was published in the journal PLOS ONE.