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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Neurobiol Aging. 2011 Nov 9;33(9):1913–1919. doi: 10.1016/j.neurobiolaging.2011.09.036

Fig. 4.

Fig. 4

Selectivity and polarity of recorded OSN calcium responses to odor mixtures A and B. (a) The percentage of responsive cells was higher in OSNs from older donors, and a subset of cells from the older subjects responded to both odor mixtures. (b) This panel shows the percent of cells responding with different polarities to odors A and B (or to both odors). “+” denotes an odor-induced increase in calcium while “−“ denotes an odor-induced decrease in calcium. The percentage of odor-induced decreases in calcium in responses to mix A was higher in cells from older donors.