Neuronal convergence in early contrast vision: binocular summation is followed by response nonlinearity and area summation.

@article{Meese2009NeuronalCI,
  title={Neuronal convergence in early contrast vision: binocular summation is followed by response nonlinearity and area summation.},
  author={Tim S. Meese and Robert J Summers},
  journal={Journal of vision},
  year={2009},
  volume={9 4},
  pages={7.1-16}
}
We assessed summation of contrast across eyes and area at detection threshold (C(t)). Stimuli were sine-wave gratings (2.5 c/deg) spatially modulated by cosine- and anticosine-phase raised plaids (0.5 c/deg components oriented at +/-45 degrees ). When presented dichoptically the signal regions were interdigitated across eyes but produced a smooth continuous grating following their linear binocular sum. The average summation ratio (C(t1)/([C(t1+2)]) for this stimulus pair was 1.64 (4.3 dB). This… CONTINUE READING

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