The 11th ATP1A3 in Disease Symposium will bring together researchers, clinicians and families with the goal of advancing knowledge of ATP1A3 related disorders. For this year’s conference in Chicago, October 27-28, 2023, we invite the submission of abstracts for presentation at the meeting. Abstracts should report unpublished or recently published research findings or clinical observations. All abstract submissions are eligible for poster presentations at the conference and some may be selected for short (10 minute) talks. Abstracts should be prepared in Microsoft Word using Arial 12 pt font, single spaced, with 2 inch margins. Provide an informative title of 15 words or less, all authors with first and last names, degrees and affiliations, followed by the body of the abstract (maximum of 400 words). Underline the presenting author’s name and indicate if they are a trainee (undergraduate, graduate, postdoctoral) using an asterisk. Figures and tables are not allowed. Submit a single file named LASTName_FIRSTName of the presenting author. If more than one abstract is submitted with the same author name, then add a sequential number (e.g., 1, 2, etc.) to the file name.