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. Author manuscript; available in PMC: 2009 Jul 19.
Published in final edited form as: Behav Brain Res. 2008 Mar 12;190(2):165–173. doi: 10.1016/j.bbr.2008.02.044

Table 1.

Summary of neural codes.

Neural code Outcome
1. Firing rate of individual afferents (SA1, RA, PC) Rejected because individual rate-intensity functions comprise long entrainment plateaus.
2. Firing rate of afferents of a given type whose RFs are located in the “hot zone” SA1, R2 = 0.68
RA, R2 = 0.89
PC, R2 = 0.74*
3. Firing rate of afferents whose RFs are located in the “hot zone,” weighted by type R2 = 0.97
4. Number of afferents of each type activated in the “hot zone” Rejected because the number of recruited afferents plateaus at low stimulus intensities.
5. Estimated total firing rate of afferents of a given type SA1, R2 = 0.56
RA, R2 = 0.80
PC, R2 = 0.74*
6. Weighted total estimated firing rate across afferent types R2 = 0.96
7. Estimated number of active afferents of each type SA1, R2 = 0.10
RA, R2 = 0.51
PC, R2 = 0.54
8. Estimated weighted number of active afferents R2 = 0.86
*

Codes are computed identically due to the nature of PC RFs.