With the emergence of the metaverse, countries’ digital efforts to create tourism opportunities have given rise to the possibility of capitalising on digital content which, along with physical tourism experiences, can generate further income and enhance a country’s reputation. Non-fungible tokens (NFTs), a unique application of blockchain technology, offer an enabling technology in several sectors, including tourism. Therefore, this study aims to explore the official tourism websites of Croatia and Slovenia and analyse current NFT applications in tourism economics. The methodology focuses explicitly on sentiment analysis, blockchain and machine learning. The paper introduces various applications currently in place, including Slovenia’s “I Feel Nft” project. The research shows that the main benefits of using NFT and sentiment analysis in the tourism economy are the promotion and presentation of major tourist destinations, exhibitions, works of art, and companies’ products in tokens, digital content and souvenirs. The adoption of sentiment analysis and NFTs in the tourism economy is still open to proposals for implementing public quantitative data metrics. Therefore, the scientific contribution of this research is essential in terms of operational recommendations and defining metrics for measuring the effectiveness of those methodologies and their applications in the tourism economy. On top of that, the practical contribution lies in monitoring the influx of tourists, and highlighting their increase over time and the significance of new technology in time series tourism research.

The relationship between the brain and music represents a fundamental field for investigation in HCI (human-computer interaction), for example, in games, virtual reality, and digital entertainment, due to the impact of music on human experience, emotions, and cognitive processes. For a low cost and the possibility of real-time analysis, the brain computer Interface (BCI) offers the potential for using music in HCI-related applications, as in games and entertainment. In many studies related to music and the brain, BCI devices have been used both for psychological aims and for neuro-feedback-based therapy. In our work we focus on the possibility of enabling users to consciously play a specific musical note through low-cost BCI devices by reading subjects' brainwaves under a combined paradigm of audio, gesture, and visual stimuli. The results encourage further developments and future research.

Non-fungible tokens (NFTs) represent a promising application of blockchain technology that can potentially disrupt various sectors, mainly tourism. While there have been conceptual discussions regarding the opportunities and challenges of utilizing NFTs for purposes such as digital souvenirs, ticketing, loyalty programs, and conservation initiatives, there remains a significant need for a robust methodological framework to assess the impact of real-world NFT implementations empirically. This paper presents the methodological foundation of ongoing research. It proposes a comprehensive approach to researching NFT initiatives within the tourism sector, which includes data collection methods, analytical techniques, and the design of a workbench for monitoring key performance indicators (KPIs). The proposed framework combines quantitative and qualitative measures to capture the complex nature of NFT adoption, including financial performance, visitor engagement, user experience, and operational efficiency. By establishing standardized protocols and metrics, the proposed methodology aims to enable cross-study comparisons and contribute to developing the best practices for leveraging NFTs in the tourism industry. The work highlights the potential of NFTs to enhance visitor experiences, generate new revenue streams, and promote destinations as tech-savvy hubs, while also addressing ethical and sustainability concerns. The conclusion emphasizes the importance of a structured approach to evaluating NFTs initiatives, which can provide valuable insights for tourism organizations seeking to innovate and remain competitive in a digital landscape. Future research should focus on validating the framework through real-world case studies, exploring additional applications of NFTs in tourism, and addressing challenges related to data availability, technological integration, and stakeholder collaboration.