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Tracking multiple independent targets: evidence for a parallel tracking mechanism.
Two studies are reported which suggest that, while certain aspects of attention require that locations be scanned serially, at least one operation may be carried out in parallel across several independent loci in the visual field, that is the operation of indexing features and tracking their identity.
Is vision continuous with cognition?: The case for cognitive impenetrability of visual perception
  • Z. Pylyshyn
  • Psychology
    Behavioral and Brain Sciences
  • 1 June 1999
The paper discusses arguments from computer vision and psychology showing that vision is "intelligent" and involves elements of "problem solving" and examines a number of examples where instructions and "hints" are alleged to affect what is seen.
Why are small and large numbers enumerated differently? A limited-capacity preattentive stage in vision.
It is argued that subitizing exploits a limited-capacity parallel mechanism for item individuation, the FINST mechanism, associated with the multiple target tracking task (Pylyshyn, 1989; Pylyshy & Storm, 1988).
What enumeration studies can show us about spatial attention: evidence for limited capacity preattentive processing.
Subitizing must rely on a mechanism that can handle a few items at once, which operates before attention but after preattentive operations of feature detection and grouping.
Seeing and Visualizing: It's Not What You Think
In Seeing and Visualizing, Zenon Pylyshyn argues that seeing is different from thinking and that to see is not, as it may seem intuitively, to create an inner replica of the world. Pylyshyn examines
The imagery debate: Analogue media versus tacit knowledge.
The debate over the nature of mental imagery, especially with respect to the interpretation of recent findings on the transformation of images.” has failed to focus on the crucial differences between