>We hear in one dimension, left-to-right. While our localization abilities vary by axis, we do have them in all three directions due to the combination of seve

>We hear in one dimension, left-to-right. While our localization abilities vary by axis, we do have them in all three directions due to the combination of several mechanisms, none of which are actually 'left-to-right'. http://en.wikipedia.org/wiki/Sound_localization http://en.wikipedia.org/wiki/Sound_localization