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. 2013 Jun 5;110(5):1087–1096. doi: 10.1152/jn.00230.2013

Fig. 7.

Fig. 7.

UVF overrepresentation develops later in inferior colliculus (IC) compared with AI. A: CF distribution as a function of distance below primary visual cortex (V1) for 4 independent tracts across 3 adult animals (P45–50). Lines of best fit are shown for sites tuned to below or above 32 kHz. Numbers indicate sites of example receptive fields in B. B: example receptive fields. C: CF distribution as a function of distance for 4 juvenile animals (P21–30). As in A, lines of best fit are shown for sites tuned to below or above 32 kHz. D: proportion of IC representing the UVF range was significantly higher for the older (P45–50) than the younger (P21–30) animals (*P = 0.023, t-test).