cognitive modeling

We present a novel computational model of enumeration in which attention unifies distinct processes of numerosity approximation, subitizing, and explicit counting.

We present an account of object tracking in the ARCADIA cognitive system that treats MOT as dependent upon both pre-attentive and attention-bound processes. We show that with minimal addition this model replicates a variety of core phenomena in the MOT literature and provides an algorithmic explanation of human performance limitations.

We describe an attention-centric cognitive system called ARCADIA that demonstrates the orienting, filtering, and resource-skewing functions commonly attributed to attentional mechanisms.

We summarize progress to date on a new cognitive architecture called ARCADIA that gives a central role to attention in both perception and cognition. We also present a model of incremental object construction and property binding in ARCADIA using the well known change blindness phenomena to illustrate the time course of object perception and its dependence on attention.