Input on the skin is emerging as an interaction style. At CHI
2012, Coyle and colleagues identified an increase in the sense
of agency (SoA) as one benefit of skin input. However, their
study only compared skin input to button presses and has not,
to our knowledge, been replicated. Therefore, we had 24 participants
compare skin input to both button presses and touchpad
input, measuring SoA using the Libet Clock paradigm.
We replicate previous findings regarding increased SoA in
skin versus button input and also find that SoA for skin is significantly
increased compared to touchpad input. Interview
data addressing subjective experience further support these
findings. We discuss agency and the experiences associated
with skin input, as well as differences to input with non-skin
devices.