Aapo Hyvärinen: Publications

Publications menu

Brain imaging data analysis Bayesian networks & SEM Estimation theory Natural image statistics The FastICA algorithm Independent component analysis: misc. Unsupervised learning: misc. Experimental vision research   Publications front page Back to home page

Experimental vision research

L. Henriksson, A. Hyvärinen and S. Vanni. Representation of Cross-Frequency Spatial Phase Relationships in Human Visual Cortex. Journal of Neuroscience, 29(45):14342-14351, 2009.
pdf
[Finds areas in which there seems to be a representation of the cross-frequency relations of phases, so that suitably congruent phases (as in a step edge) elicit maximum response.]

I. Kurki, T. Peromaa, A. Hyvärinen and J. Saarinen. Visual Features Underlying Perceived Brightness as Revealed by Classification Images. PLoS ONE, 46(13):2009--2014, 2006.
pdf
[Investigate brightness perception with classification images.]

L. Henriksson, L. Nurminen, A. Hyvärinen and S. Vanni. Spatial frequency tuning in human retinotopic visual areas. Journal of Vision, 8(10):1-13, 2008.
Open access journal article
[Considers the hypothesis that an important aspect of the specialization of extrastriate areas is representation of different spatial scales.]

I. Kurki, A. Hyvärinen and P. Laurinen. Collinear context (and learning) change the profile of the perceptual filter. Vision Research, 46(13):2009--2014, 2006.
pdf
[Shows how the classification image is modified by context (collinear flankers).]