by Lisa Marie Tripp, M.S. Washington State University December 2009 Chair: Robert Patterson One remarkable phenomenon reported in the literature on motion perception is called the motion aftereffect (MAE), which refers to the illusion of motion in a given direction following adaptation to real motion in the opposite direction. The purpose of the present study was to investigate the induction of...

Several previous psychophysical and neurophysiological studies have investigated the separate effects of attention and adaptation on visual processing. Here, we investigated the combined effects of attention and adaptation on motion processing by measuring the effects of spatial attention on the duration of the motion after-effect (MAE) over a wide range of stimulus contrasts. MAE duration was ...

Robert has most recently served as senior vice president of corporate development and as vice president of merger integration, overseeing the integration efforts following Sallie Mae’s acquisition of USA Group’s guarantee servicing, student loan servicing and secondary market operations in July 2001. Prior to this assignment, Robert has served as a Vice president of application development in S...

PURPOSE To use optical coherence tomography (OCT) to measure corneal power and calculate intraocular lens (IOL) power in cataract surgeries after myopic and hyperopic laser vision correction (LVC). METHODS Patients with previous LVC were enrolled in this prospective study at two centers (Doheny Eye Institute, Los Angeles, CA, USA and Cullen Eye Institute, Houston, TX, USA). Corneal power was ...

OBJECTIVE Clinicians often overestimate the probability of a disease given a positive test result (positive predictive value; PPV) and the probability of no disease given a negative test result (negative predictive value; NPV). The purpose of this study was to investigate whether experiencing simulated patient cases (ie, an 'experience format') would promote more accurate PPV and NPV estimates ...

In this paper, we describe a new authentication service for securing mobile ad hoc network (MANET) routing protocols. A MANET authentication extension (MAE) is appended to each routing protocol message. Our design includes a self-organized certification service, adapted from [6] with the following improvements: appropriated initialization, correcting vulnerabilities in the original design; loca...

Turmeric (Curcuma longa L.) is a medicinal plant, and its biological activities mainly arise from the main constituent, known as diferuloylmethane or curcumin. In the present paper, microwave-assisted extraction (MAE) was investigated for the recovery of curcumin from turmeric in comparison to conventional heat-assisted extraction (CHAE) technique. Various experimental conditions, such as solve...

PURPOSE To compare binocularity in central and peripheral vision of people with early-onset strabismus and people with normal binocular vision. METHODS Ten subjects with early-onset strabismus, and nine subjects with normal binocular vision were tested. To assess binocularity, interocular transfer (IOT) of a rotary movement aftereffect (MAE) was measured. The MAE stimuli were either confined ...

Attending to a feature in one location can produce feature-specific modulation in a different location. This global feature-based attention effect has been demonstrated using two stimulus locations. Although the spread of feature-based attention is presumed to be constant across spatial locations, it has not been tested empirically. We examined the spread of feature-based attention by measuring...

Recent fMRI findings have shown that selective attention to translating dots enhances V1 and MT complex activity whereas attention to expansion enhances MT complex activity rather than V1 (Watanabe et al., Proceedings of the National Academy of Sciences of the USA, (1998a) 95(19), 11489–11492). In order to clarify whether or not attention actually enhances the neural mechanism for the attended ...