Fig. 3

Decoded state signal. a Averaged state signal for trials with switch when initially attending to the right (red) and initially attending to the left (blue) visual field in S1. b Averaged state signal for trials with switch when initially attending to the right (red) and initially attending to the left (blue) visual field in S2. The x-axis denotes the time relative to the change in motion direction. Time zero denotes the time when the attention switch occurred. The y-axis denotes the distance from the separating hyperplane from the support vector machine in arbitrary units. The goal of the distance measure is to represent separability of where spatial attention is directed in one dimension (along the perpendicular to the separating hyperplane). Positive values indicate that covert attention is directed to the LVF and negative values indicate the covert attention is directed to the RVF. Horizontal dotted lines indicate 2 standard deviations above and below zero