The first objective was to improve the design of previous studies on studying the effect of sensory augmentation on human cognition, perception, and behavior/performance. To this end, the PhD student was encouraged to learn about the analysis of neural data in humans, as well as other species such as rodents. Moreover, the PhD student was encouraged to learn about sensory augmentation techniques and underlying technologies. Another aim was to identify potential improvements to the working mechanism of a tactile sensory augmentation device that is used for sensory augmentation of navigation-relevant information, for instance in blind users (https://feelspace.de/). This goal was extended to the Tactonom Reader after a succesful first secondment with project partner Inventivio (ESR 15). Here, our goal was to develop and carry out user studies comparing different approaches to acoustic augmentation (developed by ESR 15). Specifically, to compare their effectiveness in guiding blind users through tactile graphics displayed on the Tactonom Reader.