1. A B C D
VIS
AUD V
azi
ele
stim
resp
gaze shift
error
Figure 12-1

2. HUMAN/MAMMAL BARN OWL elevation azimuth Figure 12-2 HRTF ITD ILD
earflaps
facial
ruff
Figure 12-2

3. A B C Figure 12-3 Owl 1 Plug left Normal vision Owl 5 Plug right
Prisms
Owl 3
Eyes occluded A B C
Figure 12-3

4. E Sound level (dBA) Target Azimuth (deg) Figure 12-4 JV CONTROL35 45 55
Mean Absolute Azimuth Error (deg) E JV RK
CONTROL
PLUG
Figure 12-4

5. A B
Sound Level (dBA)
Azimuth Bias (deg)
Azimuth Gain
Figure 12-5

6. AZPERC
ELPERC
attenuated ear
normal hearing ear
Figure 12-6

7. Percent Correct Experimental Session 100 80 60 40 20 Pre-plug Plug: 1
Block-trained
Daily-trained: all tasks
Daily-trained: only flat noise
Daily-trained: random spectra
100 80 60 40 20
Pre-plug
Plug: 1
Plug: final
Post-plug
Experimental Session
Percent Correct
Figure 12-7

8. Target Azimuth (deg) MAE (deg) PRE-ADAPTATION POST-ADAPTATIONRK 35 45 55 30 60 40 20 50
Target Azimuth (deg)
MAE (deg)
PRE-ADAPTATION
POST-ADAPTATION
Sound Intensity (dBA)
Azimuth Gain
Session
Elevation Gain
0.2
0.5
0.9
0.7
Figure 12-8

9. A B C - Figure 12-9 Control: no mold Ear with pinna mold
without mold
with mold -
Transfer (dB)
Elevation (deg)
Frequency (kHz)
Control: no mold
Acute mold
Azimuth (deg)
-30 30 A B C
Figure 12-9

10. Figure 12-10 Day 1 Day 0 Day 2 Day 3 Day 4 Day 5 Day 7 Day 15 Day 9

11. Figure 12-11

12. εPERC εVIS @εVIS Figure 12-12 X(ω) Y(ω; εTAR) initial HRTF map
(random entries)
new HRTF map
after 104 trials
Sensorimotor
feedback
Learn
HRTF maps
δ-rule
εPERC
εVIS
@εVIS
New HRTFs
Original HRTFs
Max(Corr)
εTAR
HRTF(ω; εTAR)
X(ω)
@ εTAR
Y(ω; εTAR)
Figure 12-12

13. A B Response (deg) Azimuth Elevation Stimulus (deg) Normalized Gain
Correlation A B
Figure 12-13

14. Targets and Field of View
Elevation (deg)
Azimuth (deg)
Adaptation
Aftereffect
Local Spatial Gain Change
-20 20 40
FOV
VOR Gain
Targets and Field of View
Vestibular-Ocular Reflex A B C D E
Figure 12-14

15. A D B E C Population Response Response Change Gain Change Azimuth
ILD sensitivities
Azimuth
Population Response
Response Change
Gain Change A B C D E
Figure 12-15