Table 2.

The number of transneuronally labeled neurons observed in the output nuclei of the cerebellum and basal ganglia 4–5 d after injections of HSV-1 into the primary motor cortex

Animal	Region of M1 injected	# of labeled cells in ND	# of labeled cells in NI	ND:NI ratio	# of labeled cells in ipsi GPi	# of labeled cells in contra GPi	# of labeled cells in ipsi SNpr	Cerebellum: basal ganglia ratio
Z10	Arm	513	86	6.0:1.0	475			1.3:1.0
Jo 19	Arm	547	85	6.4:1.0	630			1.0:1.0
Jo 20	Arm	270	42	6.4:1.0	152			2.1:1.0
Jo 17	Leg	425	138	3.1:1.0	273			2.1:1.0
Jo 18	Face	348	43	8.1:1.0	652	74	42	0.5:1.0