Subject: Re: vision:audition::surfaces:sources From: Sigurd Saue <sigurd.saue(at)VOXELVISION.NO> Date: Thu, 13 Jul 2000 16:32:33 +0200To Michael: If my memory doesn't fail me, there is a discussion of this symmetry in J.J.Gibson's 1966 book "The senses considered as perceptual systems". Sigurd Saue ********************************************** Voxelvision AS * work: +47 73 87 36 97 Dronningensgt. 32 * home: +47 74 85 70 67 N-7011 TRONDHEIM * fax: +47 73 87 36 99 NORWAY * ********************************************** > Could anyone point me to the best authority to credit for the following > rather obvious but neat symmetry between vision and audition? The > auditory system is concerned with sources of sound, not with surfaces > that reflect sound (we tend to discount the reverberant environment in > identifying sources). For the visual system just the opposite is true: > it is concerned with surfaces that reflect light, not with the sources > that illuminate them (we tend to discount the illuminant in > identifying objects).