ABSTRACT
The dynamics of two coordinated limbs or limb segments, such as the index fingers or hands, exhibit the elementary coordination dynamics that are presumably present in all coordinative structures. These dynamics are captured by the relative phase ϕ, the difference between the phases of two oscillating units, and expressed in the equation of motion (Kelso, 1994): ϕ ˙ = δ − a sin ( ϕ ) − 2 b sin ( 2 ϕ ) + Q ξ https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315789361/74c943bb-49da-425e-8820-476cea3135fa/content/eqn11_1.tif"/>
