While laparoscopic surgery has revolutionized many surgical procedures in terms of op- eration duration as well as being milder for the patient by only using small incisions to perform operations, it also increased surgeons cognitive loads due to complex eye hand coordination and mapping of three dimensional space onto a two dimensional display. This master thesis, written as part of the Institute of Pervasive Computings MinIAt- tention project (FFG 851.227) introduces suitable ICT-based feedback modalities for surgeons during such operations, helping them to keep higher levels of attention. To do so, first an overview of the human sensory system is given as foundation to understand the effect of different feedback modalities. Afterwards an analysis of general-purpose feedback modalities is performed in the visual, auditory, and tactile field. Based on the findings in the general analysis, conclusions about appropriate feedback modalities for surgeons during laparoscopic surgery are drawn. In the second part of the thesis, the impact of such feedback on surgeons attention levels is inspected. Sensor data of 19 surgical studies is analysed regarding base line atten- tion levels of two differently experienced surgeons without any attention management in use. Finally, an analysis of ten additional validation studies is carried out comparing attention levels using the introduced feedback modalities or not.
