Watch the spiel here: https://youtu.be/9SXYgNeL1C4 I'll be around to respond to comments especially during the poster sessions (Thursday/Friday/Saturday 12-2), but I'll keep an eye on them afterwards as well. If you'd prefer, you can also send me an email at nicolaus.schrum@uconn.edu. Thanks! Short Abstract: The Sustained Anterior Negativity (SAN) is an event related brain potential (ERP) that has been elicited during the processing of long-distance filler-gap dependencies. This project investigates two classes of functional explanations for the SAN: syntactic retrieval-feature tracking or semantic operator-variable based meaning. We compare three types of wh-dependencies in English: wh-object questions (*who*/*what*), wh-adjunct questions (*when*, *how*, and *why*), and *how-come* questions (which are claimed to lack syntactic movement/slash-passing). All conditions showed a SAN, suggesting that either the SAN does not index syntactic parsing features triggered by movement/slash passing, or that *how-come* does in fact involve a retrieval feature.