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RDATE:20331106T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20340312T030000 RDATE:20341105T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20350311T030000 RDATE:20351104T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20360309T030000 RDATE:20361102T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20370308T030000 RDATE:20371101T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:bed062f11ddc01a134e44affa2207751 CATEGORIES:RuCCS Colloquia:Spring 2012 CREATED:20151203T141543 SUMMARY:Constraints and flexibility in early quantification LOCATION:Johns Hopkins University\, Department of Psychological and Brain Sciences DESCRIPTION:The act of quantification (e.g., knowing how many objects are in a scene) requires selecting a relevant entity and storing it in working memory for f urther processing. Critically, multiple kinds of entities can be selected and stored. In this talk I offer evidence that humans can represent at lea st three different levels of entities in working memory. They can represen t an individual object (e.g., "that bird"). They can represent a collectio n of items (e.g., "that flock of birds"). And they can represent a set of discrete items (e.g., "the set containing Bird A, Bird B, and Bird C"). Ea ch of these different ways of representing a scene permits a different type of quantificational processing. Storing individual objects in working mem ory permits exact but implicit representation of the number of objects pres ent, up to a maximum of 3 objects. Storing collections of items in working memory permits explicit but inexact representation of the number of items present, with no in principle upper limit. And storing sets of individual items permits exact implicit representation of the number of items present, with an upper limit that has yet to be empirically specified. Hence, whic h quantity-relevant computations may be performed in any given situation de pends on which level of representation is stored. This framework for think ing about interactions between working memory and quantification applies th roughout development, starting in infancy.\n X-ALT-DESC;FMTTYPE=text/html: