Contrast's effect on spatial summation by macaque V1 neurons

By M. Sceniak, Dario L. Ringach, Michael J. Hawken, Robert Shapley. 1999

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Citations in the corpus

Normalization as a canonical neural computation (2011, background): “A neuron's responses to stimuli inside the summation field can be suppressed by placing additional stimuli in the surrounding regio”
Lateral connectivity and contextual interactions in macaque primary visual cortex. (2002, background): “surements of length tuning at different contrast levels or (B) Its autocorrelogram confirms that the projection has little cluster- with test stimuli embedded in complex backgrounds (Kaing and contains only low-amplitude and variable periodic variation padia et al., 1999; Sceniak et al., 1999); cond”
Building a mechanistic model of the development and function of the primary visual cortex. (2012, unknown): “For instance, as the size of a patch of grating is increased, the response of a V1 neuron typically increases at first, reaches a peak, and then decreases [67, 69, 80].”
Inhibitory Stabilization of the Cortical Network Underlies Visual Surround Suppression (2009, background): “... DC, and 37% ± 4% in membrane potential F1. The net effect of surround stimulation on firing rate responses was an almost complete suppression at lower center contrasts and a scaling at higher center contrasts (Cavanaugh et al., 2002; Sengpiel et al., 1998), whereas the surround stimulus on its o”
Nature and interaction of signals from the receptive field center and surround in macaque V1 neurons. (2002, methodology): “Moreover, suppression from the similarly sized surround increases as contrast increases, but neither we nor Sceniak et al. (1999) observed any change in the degree of observed suppression with contrast .”
Natural signal statistics and sensory gain control (2001, background): “However, the shapes of physiologically measured tuning curves for some parameters exhibit substantial dependence on input level in both audition [16] and vision [17, 18].”
Time Course and Time-Distance Relationships for Surround Suppression in Macaque V1 Neurons (2003, methodology): “However, we used high-contrast stimuli, which minimize the apparent size of the CRF (Kapadia et al., 1999; Sceniak et al., 1999; Cavanaugh et al., 2002), and therefore have tested as close to the CRF as our methods allow.”
Circuits for Local and Global Signal Integration in Primary Visual Cortex (2002, background): “Furthermore, V1 RFs show dynamic spatial properties, changing in size depending on stimulus contrast (Kapadia et al., 1999; Sceniak et al., 1999).”
Anatomical origins of the classical receptive field and modulatory surround field of single neurons in macaque visual cortical area V1. (2002, background): “Furthermore, Sceniak et al. (1999) reported that by lowering the stimulus contrast, the RF summation area increases 2-3 fold; thus, our measures of RF peak summation area at high contrast given above for Vl neurons could instead be up to 2.4 " -4.8' if measured at low contrast (Fig.”
LFP and oscillations—what do they tell us? (2015, background): “In [26], the authors showed that at higher contrasts, the excitatory centre”