Modified pinna cues degrade localization which readapts within about six weeks

Evidence

Hofman et al. ( 1998 ) and Van Wanrooij and Van Opstal ( 2005 ) reported about experiments where test subjects had their pinnae modified by concha moulds. Results show that while localisation performance was disrupted immediately after mould insertion, subjects regained their localisation ability over the course of weeks. Typically after 6 weeks of learning they had reached an asymptote close to their previous performance. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3052