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. 2013 Apr 17;110(1):177–189. doi: 10.1152/jn.00092.2013

Fig. 5.

Fig. 5.

Neural classifier performance in each auditory field with and without spike timing information. Neural activity in AAF, A1, VAF, and PAF was all better able to discriminate pairs of consonant speech sounds when spike timing information was preserved than when spike timing information was removed. Classifier performance plotted is the average of many groups of 5 random sites performing neural discrimination of 21 different consonant pairs (see methods). In AAF, the classifier achieved 93.1 ± 1.0% correct when spike timing information was preserved vs. 72.2 ± 1.5% correct when spike timing information was removed (P < 0.01). In A1, the classifier achieved 94.4 ± 1.0% correct vs. 77.3 ± 1.5% (P < 0.01). In VAF, the classifier achieved 86.2 ± 1.3% correct vs. 68.2 ± 1.4%, P < 0.01. In PAF, the classifier achieved 75.2 ± 1.4% correct vs. 66.5 ± 1.0%, P < 0.01. All t-tests reported tested classifier performance with and without spike timing, respectively. Values are means ± SE across groups of 5 recording sites. *Significant difference.