Soft constraints hypothesis (SCH) is a rational analysis approach that holds that the mixture of perceptual-motor and cognitive resources allocated for interactive behavior is adjusted based on temporal cost-benefit tradeoffs. Alternative approaches maintain that cognitive resources are in some sense protected or conserved in that greater amounts of perceptual-motor effort will be expended to c...

In this paper we offer an approach of website design based on Scientific Visualization. Websites may be conceptualized as information architectures that have been designed for a specific set of task(s). We aim to develop effective information representation through the technique of visualization in order to reduce cognitive load in performing such tasks. We approach this formalism by considerin...

Transcranial magnetic stimulation (TMS) of the occipital and parietal cortices can induce phosphenes, i.e. visual sensations of light without light entering the eyes. In this paper, we adopted a TMS-EEG interactive co-registration approach with a patient (AM) showing altitudinal hemianopia. Occipital and parietal cortices in both hemispheres were stimulated while concurrently recording EEG sign...

In recent years, there has been much interest in characterizing statistical properties of natural stimuli in order to better understand the design of perceptual systems. A fruitful approach has been to compare the processing of natural stimuli in real perceptual systems with that of ideal observers derived within the framework of Bayesian statistical decision theory. While this form of optimiza...

This paper presents a self-supervised algorithm for learning perceptual structures based upon correlations in different sensory modalities. The brain and cognitive sciences have gathered an enormous body of neurological and phenomenological evidence in the past half century that demonstrates the extraordinary degree of interaction between sensory modalities during the course of ordinary percept...

ed perceptual schemata. Through a process of selective attention that breaks down and abstracts perceptual traces into symbols, the schemata can come to represent abstractions like shapes independent of orientation. Further details on the abstraction mechanism are not provided. In his description of human conceptual processing, Barsalou invokes the concept of a "simulation": a dynamic reactivat...

Perceptual hashing is conventionally used for content identification and authentication. It has applications in database content search, watermarking and image retrieval. Most countermeasures proposed in the literature generally focus on the feature extraction stage to get robust features to authenticate the image, but few studies address the perceptual hashing security achieved by a cryptograp...

Although the field of perceptual learning has mostly been concerned with low- to middle-level changes to perceptual systems due to experience, we consider high-level perceptual changes that accompany learning in science and mathematics. In science, we explore the transfer of a scientific principle (competitive specialization) across superficially dissimilar pedagogical simulations. We argue tha...

BACKGROUND We assessed whether evidence accumulation could be observed in the BOLD signal during perceptual decision making. This presents a challenge since the hemodynamic response is slow, while perceptual decisions are typically fast. NEW METHOD Guided by theoretical predictions of the drift diffusion model, we slowed down decisions by penalizing participants for incorrect responses. Secon...

This report presents the Near set Evaluation And Recognition (NEAR) system. The goal of the NEAR system is to extract perceptual information from images using near set theory, which provides a framework for measuring the perceptual nearness of objects. The contributions of this report are an introduction to the NEAR system as an application of near set theory to image processing, a featurebased...