An assessment of fixed-capacity models of visual working memory.
Visual working memory is often modeled as having a fixed number of slots. We test this model by assessing the receiver operating characteristics (ROC) of participants in a visual-working-memory change-detection task. ROC plots yielded straight lines with a slope of 1.0, a tell-tale characteristic of all-or-none mnemonic representations. Formal model assessment yielded evidence highly consistent with a discrete fixed-capacity model of working memory for this task.
Rouder
Jeffrey N
JN
Department of Psychological Sciences, 210 McAlester Hall, University of Missouri, Columbia, MO 65211, USA. rouderj@missouri.edu
Morey
Richard D
RD
Cowan
Nelson
N
Zwilling
Christopher E
CE
Morey
Candice C
CC
Pratte
Michael S
MS
D006801:Humans; D008570:Memory, Short-Term; D008960:Models, Psychological; D012372:ROC Curve; D014796:Visual Perception