We are happy to share codes with other research groups. If you plan to use them in your studies, we ask that you use the provided citation in your publications.

Isoluminance Adjustments (Nasr et al., 2016)

We use the attached code to adjust the red/blue/green/yellow luminance ratio at three different eccentricity ranges (0 –2°, 2–5°, and 5–10°) based on flicker photometry (Ives, 1907; Bone and Landrum, 2004). Further details of the method are described on our previous publications (Nasr et al., 2016; Nasr and Tootell, 2018).
Download our code by clicking here.
Citation:
  • Nasr, S., & Tootell, R. B. (2018). Columnar organization of mid-spectral and end-spectral hue preferences in human visual cortex. Neuroimage, 181, 748-759.
  • Nasr, S., Polimeni, J. R., & Tootell, R. B. (2016). Interdigitated color-and disparity-selective columns within human visual cortical areas V2 and V3. Journal of Neuroscience, 36(6), 1841-1857.

Rectilinearity Filter (Nasr et al., 2014)

We used this code for Wavelet filtering based on an algorithm described originally by Kruger et al., 1996. Application of the implemented analysis provides an orientation-invariant wavelet coefficient for different angles. Further details of this approach are described in our previous publication (Nasr et al., 2014).
Download our code through github (credit to Cesar Echevarria) or by clicking here.
Citation:
  • Nasr, S., Echavarria, C. E., & Tootell, R. B. (2014). Thinking outside the box: rectilinear shapes selectively activate scene-selective cortex. Journal of Neuroscience, 34(20), 6721-6735