. 2016 Jun 23;11(6):e0157952. doi: 10.1371/journal.pone.0157952

Table 2. Asymmetry index (AI) for map_area n-iSP_area, iSP_duration and NHPT in pianists and controls.

The AI range from 1.0 to -1.0 and the value of 0 corresponds to perfect symmetry between the two sides (Dominant = Non Dominant).

	AI-NHPT	AI-FT	AI-map_area	AI-iSP_duration	AI-iSP_area
	(14 C vs 16 P)	(12 C vs 12 P)	(12 C vs 12 P)	(11 C vs 11 P)	(11 C vs 11 P)
Controls (C)	-0.06±0.04	0,11±0,03	0.18±0.13	-0.04±0.19	-0.15±0.15
Pianists (P)	-0.01±0.04	0,07±0,03	-0.03±0.15	-0.04±0.17	-0.03±0.09
statistics	t_{(28) =} -3.1	t_{(22) =} 2.7	t₍₂₂₎ = 2.8	n.s.	t₍₂₀₎ = 2.2
	= 0.005	p = 0.01	p = 0.009		p = 0.04

Abbreviations: NHPT = nine hole peg test; FT = finger tapping; n-iSP_{area =} normalized iSP_area; n.s. = not significative

Table 2. Asymmetry index (AI) for maparea n-iSParea, iSPduration and NHPT in pianists and controls.