Philosophy and Phenomenological Research, EarlyView.

An overview of current research at the intersection of psychology and biology,integrating evolutionary and developmental data and explanations.

One hundred years after Gestalt views first took hold our understanding of how perceptual processes organize the visual field into objects and their local backgrounds has progressed substantially. We now know that in addition to the image-based properties that the Gestalt psychologists identified as relevant, a myriad of other image-based factors influence figure–ground organization, as do subjective factors such as past experience, attention, and intentions. Moreover, properties of grounds as well as properties of figures play a role. The recent use (...) of indirect measures and brain imaging techniques has revealed that there is much more processing of the regions ultimately perceived as grounds than is supposed in traditional approaches, and that competition and feedback are involved in figure–ground organization. These recent advances offer great promise for uncovering the mechanisms that organize the visual field into figures and grounds. (shrink)

Hoerl & McCormack's dual systems framework provides a new avenue toward the scientific investigation of temporal cognition. However, some shortcomings of the model should be considered. These issues include their reliance on a somewhat vague consideration of “systems” rather than specific computational processes. Moreover, the model does not consider the subjective nature of temporal experience or the role of consciousness in temporal cognition.

Although some types of cognition may not affect early vision, there is ample evidence that other types of cognition do. Evidence indicating that early vision is penetrable by direct manipulation of viewers' perceptual intentions and by knowledge of the structure of familiar objects is reviewed, and related to both the Pylyshyn target article and Fodor (1983).