Sound localization blur is smallest in front and largest at the sides

Evidence

Localization blur, or the variance in the perceived angle, was lowest at the front, somewhat bigger at the back, and largest in the side directions. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1471

Categorization

• QUESTION: Why would side localization be worst despite strong binaural cues there — does the front/back ambiguity dominate? Worth clarifying.