Posters at ICPA have traditionally been published in the ICPA Posterbook, which is part of the series Studies in Perception and Action. This book includes four-page abstracts of the posters. We will also offer this opportunity, in a two-step process. First, regular 350-words abstracts for poster presentations can be submitted, and will be evaluated for inclusion in the program. When accepted for a poster presentation, presenters can opt to write a four-page extended abstract for inclusion in the Posterbook (please indicate whether or not you wish to receive the invitation to submit the extended abstract for the Posterbook).