Table 3.

Experimental condition specific regression coefficients (β) and intercept shifts (μ) for regression models derived for peak yank and reaction time

Experimental condition		Peak yank			Reaction time
		Broad gamma regression coefficient (β)	Intercept shift (μ)		Broad gamma regression coefficient (β)	Intercept shift (μ)
			AV cue	OFF l-DOPA		AV cue	OFF l-DOPA
OFF l-DOPA	V cue	–	–	8.57	−0.101	–	4.38
	AV cue	0.223	11.38	8.57	−0.101	−36.46	4.38
ON l-DOPA	V cue	–	–	–	−0.101	–	–
	AV cue	0.223	11.38	–	−0.101	−36.46	–

Intercept shifts represent the % increments/decrements from maximal grips made in response to visual (V) cues when patients were ON l-DOPA, which also formed the baseline condition for our multi-level multivariate regression modelling approach.

AV = auditory–visual.