Encoding certainty in bump attractors

Multiplicative Modulation of Bump Attractors

Ghosts of bump attractors in stochastic neural fields: Bottlenecks and extinction

We study the effects of additive noise on stationary bump solutions to spatially extended neural fields near a saddle-node bifurcation. The integral terms of these evolution equations have a weight kernel describing synaptic interactions between neurons at different locations of the network. Excited regions of the neural field correspond to parts of the domain whose fraction of active neurons e...

Bump Mapping

Blinn [1] introduced bump mapping as a technique that makes a surface appear rough or wrinkled. This affect is achieved by perturbing the normals used in the illumination computation. Hence, it only affects the shading, not the underlying geometry. The bump map can contain height values that will affect the normal of each pixel. However, it can as an alternative contain normals that have been c...

Does attitude certainty beget self-certainty?

This research explores the possibility that changes in attitude certainty can affect general self-certainty and, thus, have consequences that extend beyond the attitude domain. Across two studies, attitude certainty is manipulated using repeated attitude expression and attitude consensus paradigms. The implications of these manipulations are tested for feelings of general self-uncertainty (Stud...

Self-certainty: Parallels to Attitude Certainty

The purpose of this article is to apply theory and research on attitude certainty to the study of the self. Our main goal is to show that research on attitudes, and in particular attitude certainty, can provide useful insights into self-related phenomena. By considering research on attitudes, we may be able to re-interpret previous self-related findings, make new predictions regarding the self,...