The epistemic role of early vision: Cognitive penetration and attentional selection

Abstract

In this article I discuss Athanasios Raftopoulos’ view on the epistemic role of attention and early vision, as outlined in his most recent book. I start by examining his view on attention, which he illustrates during his discussion of structured cognitive contents and their interactions with perceptual contents, as well as during his discussion of selection effects. According to Raftopoulos, attention not only operates pre-perceptual input selection, but also influences perceptual processing during late vision biasing the sampling of the iconic image for perceptual hypotheses-testing. Afterwards, I critically assess Raftopoulos’ conclusions about the epistemic role of early vision, which are based on his view about the role of attention. From this assessment, I raise a potential concern for his proposal in the form of a new problem of selection: the interesting epistemic consequences of cognitive penetrability either follow or do not follow from selection effects, depending on how these selection effects are construed, but regardless of the stage of visual processing in which they take place.

Keywords

• cognitive penetration
• attention
• constructivism
• selection effects
• perceptual epistemology