Table 1 Specific Parameters for the orientation and spatial frequency band expanding protocols

From: Broadband visual stimuli improve neuronal representation and sensory perception

 

Central Orientation (°)

Orientation bandwidth (°)

Central Spatial Frequency (cpd)

Spatial Frequency bandwidth (cpd)

Orientation band expanding

0

5, 25, 45

0.04, 0.16

0.004

Spatial frequency band expanding

0, 90

5

0.04

0.004, 0.04, 0.4

  1. To investigate the effect of the orientation bandwidth band expanding (orientation band enrichment protocol, top row), the central orientation (first column) and spatial frequency bandwidth (last column) were kept constant (0° and 0.04cpd, respectively), while different combinations of orientation bandwidth (second column: 5°, 25°, 45°) and central spatial frequency (third column: 0.04 cpd and 0.16 cpd) were presented. This resulted in a total of 6 different stimulus parameter combinations. The same principle was used for the spatial frequency band expanding protocol (bottom row).
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