Figure 1.1 Artwork Carmela Espadinha

Figure 1.2

Figure 1.3

` ` ` ` Original scene Top-down attentional filter Search S1S1 S2S2 S3S3 Figure 1.4

F F vision audition AZIMUTH ANGLE [deg] ELEVATION ANGLE [deg] Figure 1.5

Figure 1.6 visual objects auditory objects fixations AV-target in the world: A W /V W Head in the world H W Eye in E W the world Hybrid Reference Frame World Reference Frame V-target re. eye A-target re. head AV-target re. world

Figure 1-7 A B Azimuth Elevation Azimuth

Figure 1-8