Active Vision Cognitive Architecture Eye Movements Structural Descriptions Visual Attention
Institute of Information Theories and Applications FOI ITHEA
The paper describes an extension of the cognitive architecture DUAL with a model of visual attention
and perception. The goal of this attempt is to account for the construction and the categorization of object and
scene representations derived from visual stimuli in the TextWorld microdomain. Low-level parallel computations
are combined with an active serial deployment of visual attention enabling the construction of abstract symbolic
representations. A limited-capacity short-term visual store holding information across attention shifts forms the
core of the model interfacing between the low-level representation of the stimulus and DUAL’s semantic memory.
The model is validated by comparing the results of a simulation with real data from an eye movement experiment
with human subjects.