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. Author manuscript; available in PMC: 2011 Aug 25.

Published in final edited form as: Neuroscience. 2010 May 13;169(2):874–881. doi: 10.1016/j.neuroscience.2010.05.015

Table 3.

Descriptive statistics of the suppression index of more selective cells (OB ≥ 0.1) or broadly tuned cells (OB < 0.1) in young and old monkeys.

	Young				Old				Mann-Whitney U test
	Median	Mean	SEM	n	Median	Mean	SEM	n	Mann-Whitney U test
OB ≥ 0.1	3.43	6.79	1.46	49	3.47	8.40	3.75	11	P = 0.57
OB < 0.1	2.87	3.60	0.32	32	2.06	2.22	0.14	35	P < 0.01