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. Author manuscript; available in PMC: 2010 May 1.
Published in final edited form as: Neurotoxicol Teratol. 2009 Jan 21;31(3):149–158. doi: 10.1016/j.ntt.2008.12.006

Fig. 2.

Fig. 2

Ratio of reinforced:non-reinforced responses as a function of exposure group and sex. Data are collapsed across cohort and testing block. PCB-exposed males (panel a) appeared to be more impaired than PCB-exposed females (panel b).