Expectation induced curvature perception in V2

On index expectation and curvature for networks

We prove that the expectation value of the index function if (x) over a probability space of injective function f on any finite simple graph G = (V,E) is equal to the curvature K(x) at the vertex x. This result complements and links Gauss-Bonnet ∑ x∈V K(x) = χ(G) and Poincaré-Hopf ∑ x∈V if(x) = χ(G) which both hold for arbitrary finite simple graphs.

Expectation and the perception of color.

Repetition, expectation, and the perception of time

Prior experience with a stimulus profoundly affects how it is processed, perceived, and acted upon. One striking finding is that repeated items seem to last for less time than novel or rare ones. This link between the processing of stimulus identity and the perception of stimulus duration has important implications for theories of timing, and for broader accounts of the organization, purpose, a...

Neural Anticipative Architecture for Expectation Driven Perception

In this paper we present a biologically inspired neural architecture for visual perception based on anticipation. The main goal of this work is to demonstrate, that anticipation is a central key to improve the perception performance of technical systems. The presented approach is able to increase the robustness of the perception process against noise or sensory dropouts. We demonstrate these pe...

Expectation both helps and hinders object perception

We examined how expectation influences perception of complex objects. Participants discriminated between normal and distorted images of famous faces or places. Word cues (mostly valid) indicated either the general category or the exact identity of the upcoming image pair. Whereas category cues did not affect performance, valid exemplar expectation led to performance benefits. Furthermore, discr...