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. 2011 Oct 11;5:81. doi: 10.3389/fnsys.2011.00081

Figure 9.

Figure 9

Half-width-at-half-height (HWHH) versus bar length and HWHH versus spatial frequency. HWHH versus bar length curves produced by (A) the model and (C) real simple cells in response to bars (Data adapted from Henry et al., 1974 and Orban et al., 1979). In (A,C) the y-axis represents the HWHH in degrees, and the x-axis represents the bar length in degrees. HWHH versus SF curves produced by (B) the model in response to gratings and Gabor patches and (D) real simple cells in response to gratings (Data adapted from Vidyasagar and Siguenza, 1985). In (B,D) the y-axis represents the HWHH in degrees, and the x-axis represents the SF in cpd. Legend – S1: simple cell S1, S2: simple cell S2, SH: simple-like hypercomplex cell.