I have investigated the perception and performance of divers under water, particularly their adaptation to the optical distortions caused by the facemask. I have also studied weight and mass perception in high and low gravity environments, such as the human centrifuge, parabolic flight (see photo above) and Spacelab. I am currently interested in the history of perception, especially the Moon Illusion, and in the perception of the outdoor environment. I am also working on Gaelic psychology terminology.HobbiesHill walking - Compleat Munroist 1998 photo. Member of Scottish Ski Club. Traditional folk music. I play concertinaphoto and small pipes. Member of Shiftin Bobbins Ceilidh Band, Lowland and Borders Pipers' Society, Âé¶¹´«Ã½AV Folk Club, Traditional Music and Song Association. Gaelic. Cert HE from Sabhal M¨°r Ostaig SMO. Member of Gaelic learners' association CLI, andAn Comunn Gaidhealach.