Περίληψη σε άλλη γλώσσα
Creativity is strongly linked to acquired knowledge. Humans behave according to rules learned from their experience; however, old habits die hard. We often need to suppress things we have previously learned, to mentally access more original and creative ideas. The relationship between learning and creativity has been largely studied in isolation, while the neural mechanisms underlying the generation of original ideas have been unexplained. In this thesis, we investigated the association between learning and creativity from two different perspectives: Semantic associations reflecting life-long learning (Part A) and learning of an unfamiliar musical grammar in the laboratory (Part B). In Part A, we first investigated the role of alpha oscillations on overriding learned semantic associations. We demonstrated that right temporal alpha oscillations are associated with inhibition of obvious/learned associations to reach creative solutions. In addition, we found that mid/frontal alpha oscilla ...
Creativity is strongly linked to acquired knowledge. Humans behave according to rules learned from their experience; however, old habits die hard. We often need to suppress things we have previously learned, to mentally access more original and creative ideas. The relationship between learning and creativity has been largely studied in isolation, while the neural mechanisms underlying the generation of original ideas have been unexplained. In this thesis, we investigated the association between learning and creativity from two different perspectives: Semantic associations reflecting life-long learning (Part A) and learning of an unfamiliar musical grammar in the laboratory (Part B). In Part A, we first investigated the role of alpha oscillations on overriding learned semantic associations. We demonstrated that right temporal alpha oscillations are associated with inhibition of obvious/learned associations to reach creative solutions. In addition, we found that mid/frontal alpha oscillations are critical for generating semantically distant spontaneous associations in more creative participants. These findings suggest two distinct neural mechanisms for the generation of remote ideas. Nevertheless, to directly investigate how learning affects creativity, we then studied the neural correlates and behaviour during actual learning. In Part B, we introduced a novel experimental paradigm combining EEG, behavioural, and computational methods, to examine the neural correlates during learning an unfamiliar musical style, and to investigate how these are related to creativity. Results showed that visual aids boosted music reproduction performance but did not improve statistical learning. Learning was positively correlated with creativity. Importantly, we identified the neural correlates of learning which were associated with creativity as assessed by experts. Finally, we conducted advanced EEG analysis to investigate individual differences in the neural correlates of learning. Overall, these findings advance the understanding of the neural underpinnings of creativity, while offering contributions to the associations between neural and behavioural learning measures and creativity.
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