Global motion

Dot life time = 2 (max signal % = 50%)

Number of frames = 8 (but seemless)

Downward motion - 50% signal

Downward motion - 10% signal

Expansion - 50% signal

Rotation - 50% signal

Downward motion - contrast reversal - 50% signal

Motion direction is ambigous in the fovea

Motion direction reverses (reversed phi) in the periphery