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Recent findings in Alzheimer’s disease research has suggested that light entrainment in the form of gamma-band (40 Hz) stimulation can ameliorate Alzheimer’s-associated pathology and improve cognition. Here we report feasibility of a music-based intervention that is coupled with light entrainment in the gamma band, as well as a control intervention that pairs podcast listening with lights tuned to delta but not gamma band frequencies. We compare qualitative data from participant-maintained logbooks (diaries) and researcher notes using Natural Language Processing (NLP) methods, specifically word count and sentiment analysis, and show that both music-listening and podcast-listening participants spent a similar amount of time engaging with intervention and, on average, described positively valenced experiences. Results suggest the importance of naturalistic data obtained from diary studies as a snapshot of ongoing interventions. 

Music is often considered an important domain for creativity. Traditional studies of musical creativity have examined musical improvisation using jazz as a model. While this approach has yielded many valuable insights about creativity’s cognitive and neural mechanisms, it has limited the study sample to those with the means to engage in improvisation within one specific Western style. Here, we introduce a novel tool for assessing musical creativity in the broader sample of individuals with no specialized training. In two experiments (n = 165) we show that this sequencer can be used in people with minimal training to generate a database of sequences composed at the Bohlen-Pierce scale and to evaluate them for creativity. Results show that creativity ratings are predicted by length of melodies, number of distinct pitches used, and information content of pitch intervals. Results also show some external validity with existing creativity tasks. We advocate the use of this sequencer in creativity research, as it provides a theoretically motivated, rigorous tool to examine the iterative process of producing and evaluating musical creativity. (PsycInfo Database Record (c) 2024 APA, all rights reserved)