This paper presents a full-reference image quality estimator based on color, structure, and visual system characteristics denoted as CSV. In contrast to the majority of existing methods, we quantify perceptual color degradations rather than absolute pixel-wise changes. We use the CIEDE2000 color difference formulation to quantify low-level color degradations and the Earth Mover’s Distance betwe...

This study investigates the extent to which working memory, motor speed and perceptual processing speed influence Wechsler Adult Intelligence Scale-III (WAIS-III) Processing Speed Index (PSI) scores. Sixty-eight adult outpatients with Traumatic Brain Injury (TBI) of varying severity and complete data on all outcome measures were identified. Two cases with outlying values on one outcome measure ...

A key aim of neuroergonomics is to gain an understanding of human neural function in relation to cognitive and behavioral performance in real world tasks. Here we investigated the relationship between neural activity and human performance in a rapid perceptual categorization task. We compared two different modalities to indirectly measure neural activity, functional magnetic resonance imaging (...

Multisensory integration, the process by which sensory information from different modalities are bound together, is hypothesized to contribute perceptual symptomatology in schizophrenia, whom multisensory integration differences have been consistently found. Evidence emerging that these extend across schizophrenia spectrum, including individuals general population with higher levels of schizoty...

Background: The visual system is key to the learning process, preterm births are commonly followed by dysfunctions and other neurological conditions. Objective: measure, analyze compare efficacy, visual–perceptual, visual–motor skills of 20 late children (34–36 weeks) born caesarean section appropriate weight for gestational age with healthy controls at full term natural birth, 5 12 years, from...

Just as people vary in their perceptual expertise with a given domain, they also vary in their abilities to imagine objects. Visual imagery and perception share common mechanisms. However, it is unclear whether domain-specific expertise is relevant to visual imagery. Although the vividness of visual imagery is typically measured as a domain-general construct, a component of this vividness may b...

Performance on the Embedded Figures Test (EFT) has been interpreted as a reflection of local/global perceptual style, weak central coherence and/or field independence, as well as a measure of intelligence and executive function. The variable ways in which EFT findings have been interpreted demonstrate that the construct validity of this measure is unclear. In order to address this lack of clari...

Perceptual representations pick out individuals and attribute properties to them. This paper considers the role of perceptual attribution in determining or guiding reference objects. We consider three extant models relation between reference–all guides reference, no a privileged subset attributions reference–and argue that empirical evidence undermines all three. then defend flexible-attributiv...

Perceptual constancy has played a significant role in philosophy of perception. It figures debates about direct realism, color ontology, and the minimal conditions for perceptual representation. Despite this, there is no general consensus what is. I argue that an adequate account must distinguish it from three distinct phenomena: mere sensory stability through proximal change, categorization di...