Optomyography is the term chosen to name a device containing several reflective photosensors placed in an armband. The device is constructed so that it can measure muscle movements in the arm through the detection of skin structure variation. The aims of this research were to build such a device that is capable of expressing the structure changes in form of intensity changes in light emitting diodes and determine whether it is possible to distinguish different muscle movements. This was accomplished by designing and testing two different circuit schematics for Optomyography that differ depending on whether the outgoing signal is processed or not. The schematics were then used to build two electrical circuits of Optomyography that were tested with several subjects to see if they were functioning. The results show that only the version of Optomyography, which processes the outgoing signal with a high-pass filter and amplifies it, is able to detect muscle movements through skin structure variations. However, further investigation of the device is needed to see if different movements can be distinguished.

Breast awareness is a topic related to women's daily life. The purpose of this project is to explore the behaviors of knowing breasts from the perspective of women themselves, intending to design body experiences that facilitate the awareness of breast muscles and skin movements. The thesis begins with early-stage explorations of the meanings and methodologies of breast awareness and illustrates the entire process from preliminary research to prototyping procedure. Concepts and design methods of soma design are used to explore what kinds of interactions could be outlined in the breast sensing journey. The research process and design results propose new ways of interaction design for breast awareness, exploring the application of new material properties in soma design and breast knowing approaches. As the outcome, Sensorial Pads are made out of silicone, intending to emphasize skin tactile feeling and visual interaction for breast cognition. / Att förstå bröst är ett ämne relaterat till kvinnors dagliga liv. Syftet med detta projektär att utforska beteendet med bröstigenkänning ur kvinnors perspektiv och är avsett att utforma en fysisk upplevelse som hjälper till att förstå bröstmuskel- och hudrörelser. Denna avhandling undersöker betydelsen och metoderna för bröstigenkänning från ett tidigt skede och förklarar hela processen från preliminär forskning till prototypprocedurer. Med hjälp av konceptet och designmetoden för soma design, ta reda på vilken typ av interaktion som kan beskrivas i medvetenhet om brösten. Forskningsprocessen och designresultaten syftar till att föreslå en ny interaktiv designmetod för bröstkognition och utforska tillämpningen av nya materialegenskaper i soma design och ökad kunskap om brösten. Som ett resultat är sensorkudden gjord av silikon, som är avsedd att betona hudens brösttaktilitet och visuell interaktion.