{"pk":25597,"title":"VisualWorking Memory as Decision Making:\nCompensation for Memory Uncertainty in Reach Planning","subtitle":null,"abstract":"Limitations in visual working memory (VWM) have been extensively\nstudied in psychophysical tasks, but not well understood\nin terms of how memory limits translate to performance\nin more natural domains. For example, in reaching to grasp an\nobject based on a spatial memory representation, overshooting\nthe intended target may be more costly than undershooting,\nsuch as when reaching for a cup of hot coffee. The current\nbody of literature lacks a detailed account of how the physical\nconsequences and costs of memory error influence what\nwe encode in visual memory, and how we act on the basis of\nremembered information. Here, we study whether externallyimposed\nmonetary costs influence behavior in a task that involves\nmotor planning based on information recalled from\nVWM. Our results indicate that subjects accounted for the uncertainty\nin their visual memory, showing a significant difference\nin their motor planning when monetary costs were imposed\nfor memory errors. However, our findings indicate that\nsubjects’ memory representations per se were not biased by\nthe imposed costs, but rather subjects adopted a near-optimal\npost-mnemonic decision strategy","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"Visual working memory; decision making; motor\nplanning"}],"section":"Papers","is_remote":true,"remote_url":"https://escholarship.org/uc/item/72v9s1v8","frozenauthors":[{"first_name":"Rachel","middle_name":"A","last_name":"Lerch","name_suffix":"","institution":"Drexel University","department":""},{"first_name":"Chris","middle_name":"R","last_name":"Sims","name_suffix":"","institution":"Drexel University","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2015-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/25597/galley/15221/download/"}]}