Beyond slots and resources: an integrative approach to visual working memory.
R. Sengupta, J.K. Tsotsos, S-A. Yoo, C. Wloka, and T. Kunic (2016) Beyond slots and resources: an integrative approach to visual working memory. Society for Neuroscience (SfN)
Abstract: In order to perform everyday visual tasks we store temporary sensory information in visual working memory (VWM). In spite of considerable neurophysiological and psychophysical data, the actual content of VWM and its connection to sensory processing is still a matter of debate, particularly when it comes to VWM capacity. In the current work we take a step back from standard slot or resource based approaches to explaining VWM capacity, and instead focus on modeling the architectural structure of VWM and its relation to visual processing. This results in a computational model of VWM that provides a principled explanation for the capacity limitations previously observed. Our model additionally makes novel predictions for human performance in a change detection task, which we confirm with psychophysical experiments. Overall, the model presented here offers a comprehensive basis for an integrative account of visual processing, attention, and memory.