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

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Presentation transcript:

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

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

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

E Sound level (dBA) Target Azimuth (deg) Figure 12-4 JV CONTROL 35 45 55 Mean Absolute Azimuth Error (deg) E JV RK CONTROL PLUG Figure 12-4

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

AZPERC ELPERC attenuated ear normal hearing ear Figure 12-6

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

Target Azimuth (deg) MAE (deg) PRE-ADAPTATION POST-ADAPTATION RK -50 -25 0 +25 +50 -50 -25 0 +25 +50 35 45 55 30 60 40 20 50 0 5 10 15 20 Target Azimuth (deg) MAE (deg) PRE-ADAPTATION POST-ADAPTATION Sound Intensity (dBA) Azimuth Gain Session 0 5 10 Elevation Gain 0.2 0.5 0.9 0.7 Figure 12-8

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 0 30 -30 30 A B C Figure 12-9

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

Figure 12-11

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

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

Targets and Field of View Elevation (deg) Azimuth (deg) Adaptation Aftereffect -0.5 Local Spatial Gain Change +0.5 -20 20 40 FOV VOR Gain Targets and Field of View Vestibular-Ocular Reflex A B C D E Figure 12-14

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