Alberto Gallace

Since the beginning, virtual reality (VR) has been envisioned as a technology that engages multiple senses. Examples include Morton Heilig’s Sensorama simulator and Ivan E. Sutherland’s notion of the Ultimate Display described in the 1960s. In more than 60 years, technological development and scientific knowledge have predominantly focused virtual and extended reality (VR and XR) applications on the sense of sight and hearing. Despite their importance in everyday interaction, the other senses remain on the margins of VR and XR applications. The potential to include additional senses has been acknowledged and extensively explored in the literature. Those who deal with this topic encounter challenges in understanding the functioning mechanism of the human sensorial and perceptive components and creating interfaces capable of communicating through these senses. Last but not least, it is important to design case studies capable of exploiting the potential of this technology and encouraging investors to believe in its development and end users to adopt it once it is ready. These challenges drive the research activities included in this special issue.

Patients suffering from Unilateral Spatial Neglect (USN) fail to pay attention to, respond to, and report sensory events occurring in the contralesional side of space. The traditional neuropsychological assessment of USN is based on paper-and-pencil tests, whose data recording and scoring may be subjected to human error. The utilization of technological devices can be expected to improve the assessment of USN. Therefore, we built Neurit.Space, a modified digital version of three paper-and-pencil tests, widely used to detect signs of USN, namely: Bells Cancellation, Line Bisection and Five Elements Drawing Test. Administration and data processing is fully automatic. Twelve right brain-damaged patients (six with and six without USN) and 12 age- and education-balanced healthy participants were enrolled in the study. All participants were administered both the computerized and the paper-and-pencil versions of the tests. The results of this preliminary study showed good sensitivity, specificity, and usability of Neurit.Space, suggesting that these digital tests are a promising tool for the evaluation of USN, both in clinical and in research settings.

Reduction of global bee populations is one of the relevant topics in the list of environmental issues defined in the United Nations Sustainable Development Goals Agenda. Virtual Reality technologies can play a strategic role in raising awareness and education for sustainability by allowing users to visualize, demonstrate and emphasize information, making it more accessible. Virtual Reality can also elicit emotional involvement, which is important for influencing user behavior. The authors have designed and developed an educational Virtual Reality application called Colonies, which allows users to understand the issues related to the bee problem and empathize with bee colonies. The experience also offers suggestions for more sustainable behaviors.

Humans are the only species capable of experiencing pleasure from esthetic stimuli, such as art and music. Neuroimaging evidence suggests that the left dorsolateral prefrontal cortex (DLPFC) plays a critical role in esthetic judgments, both in music and in visual art. In the last decade, non-invasive brain stimulation (NIBS) has been increasingly employed to shed light on the causal role of different brain regions contributing to esthetic appreciation. In Experiment #1, musician (N = 20) and non-musician (N = 20) participants were required to judge musical stimuli in terms of “liking” and “emotions”. No significant differences between groups were found, although musicians were slower than non-musicians in both tasks, likely indicating a more analytic judgment, due to musical expertise. Experiment #2 investigated the putative causal role of the left dorsolateral pre-frontal cortex (DLPFC) in the esthetic appreciation of music, by means of transcranial direct current stimulation (tDCS). Unlike previous findings in visual art, no significant effects of tDCS were found, suggesting that stimulating the left DLPFC is not enough to affect the esthetic appreciation of music, although this conclusion is based on negative evidence,.

The massive presence of plastic in the oceans, both in the form of large debris and micro-plastic, is raising global concern due to its severe effects on the marine environment and fauna, causing loss of biodiversity and potentially threatening human health. Even though this is due to poor waste management, the great production and consumption of single-use plastic is a significant exacerbating factor. Despite policies and bans can be effective measures, there is also the need to raise consumers’ awareness, so they can make more sustainable choices when purchasing, using, and dismissing products. In particular, educating young citizens and encouraging them to engage in pro-environmental behaviors is a fundamental task to reach this goal. In this work, we present Contact from the future, a digital game on plastic pollution for children, to create awareness and stimulate pro-environmental behaviors, discussing the definition of objectives and requirements, as well as the design and development of the application.

Computer-Aided Design and Applications is an international journal on the applications of CAD and CAM. It publishes papers in the general domain of CAD plus in emerging fields like bio-CAD, nano-CAD, soft-CAD, garment-CAD, PLM, PDM, CAD data mining, CAD and the internet, CAD education, genetic algorithms and CAD engines. The journal is aimed at all developers and users of CAD technology to ptovide CAD solutions for various stages of design and manufacturing. The journal publishes all about Computer-Aided Design and Computer-Aided technologies.