Figure 3
From: Reprogramming of orientation columns in visual cortex: a domino effect
Location of receptive fields and spontaneous activity.
(a) Distribution of adapted (left) and non-adapted (right) receptive fields. Color codes of non-adapted sites correspond to colors of Figure 4a. The receptive field (RF) locations are relative to the fixation point which is underlined by the red cross. (b) Histogram distribution of RF-distances between adapted and non-adapted sites. The downward triangle represents the mean value of RF distance. (c) Absence of spontaneous activity (SA) modulations of one unit when the companion cell is stimulated within its RF at tested orientations. Distance between receptive fields: 6°. The total lack of modulation of SA suggests an absence of overlap between both RF's. (d) Global results of spontaneous activity of one site while stimulating the adjacent one in both pre- and post-adaptation conditions. (e) Example of multi-unit activity of one RF during the stimulation of the companion RF and during the stimulation of the RF itself. Statistical differences were observed between these conditions. Red triangles indicate the level of spontaneous activity of the RF of interest.
