Eyeblinks are periodic closings and reopenings of the
eyelid. The duration of the eyelid closure is used as the
criterion to discriminate an eyeblink from an eye closure,
An eyeblink closure duration is usually 300 msec and is
more typically 200 msec or less. The electrooculogram
(EGG) records changes in the electrical potentials between
the cornea and retina as the eyelid movement occurs.
The lid closing over the eye causes a difference in
the corneal/retinal potential that is evident in the EGG
(Stern & Dunham, 1990). Therefore, the EGG can be used
to detect eyeblinks. In this paper, a new algorithm is described
that automatically detects eyeblinks in the EGG.