name	type	x	y	z	template_z	description
S1	source	-2.47485	2.47485	n/a	0	LED source in left frontal Group 1.
S2	source	-2.47485	-2.47485	n/a	0	LED source in left frontal Group 1.
S3	source	2.47485	2.47485	n/a	0	LED source in left frontal Group 1.
S4	source	0.707105	-0.707105	n/a	0	LED source in left frontal Group 1.
S5	source	-2.47485	-5.97485	n/a	0	LED source in right frontal Group 2.
S6	source	-0.707105	-9.156805	n/a	0	LED source in right frontal Group 2.
S7	source	2.47485	-5.97485	n/a	0	LED source in right frontal Group 2.
S8	source	2.47485	-10.92455	n/a	0	LED source in right frontal Group 2.
D1	detector	0	0	n/a	0	Photodiode detector in left frontal Group 1.
D2	detector	0	-8.4497	n/a	0	Photodiode detector in right frontal Group 2.