Susan Jennifer Thomas

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Emotional Stroop tasks have gained wide interest in scientific literature in the last two decades. Although no direct measure of attention is employed, these studies infer the presence of preferential processing of threatening information based on reaction time (RT) impairment in a competing task. Because event-related potential (ERP) measures are sensitive(More)
Facilitation and inhibition are asymmetric aspects of attention that differentially affect response times (RTs), accuracy and neuroelectric activity in many experimental tasks. Both vary as a function of stimulus context, with stimulus repetitions, for example, often resulting in facilitation in terms of speed, accuracy or reduced neural activity. Although(More)
Previous studies have shown that the voluntary allocation of attention to a location in space can influence accuracy in two ways. First, additional processing resources can be allocated to the attended location, leading to an improvement in perceptual quality for objects presented at that location. Second, decision processes can be restricted to information(More)
OBJECTIVE Impaired inhibition may perpetuate repetitive symptoms in obsessive-compulsive disorder (OCD), however OCD-specific deficits have yet to be established. We investigated neural correlates of inhibition in OCD vs. healthy and anxious controls. METHODS ERPs and reaction times (RTs) were compared between participants with OCD (n=20), panic disorder(More)
Attentional biases to threat are considered central to anxiety disorders, however physiological evidence of their nature and time course is lacking. Event-related potentials (ERPs) characterized sensory and cognitive changes while 20 outpatients with panic disorder (PD), 20 with obsessive-compulsive disorder (OCD), and 20 healthy controls (HCs) responded to(More)
  • Percy W Abrams, Matthew Dryer, Wolfgang Woïck, Aksodahah Phoebe Hill, Eva Okun, Nora Carrier +54 others
  • 2006
But, especially to Karin Michelson for all of the help. I would like to acknowledge the encouragement and help given to me by the following people and organizations: First and foremost, the Onondaga speakers: There are so many people to thank that I hope I haven't forgotten anyone. iii TABLE OF CONTENTS Dedications and Acknowledgements iii Table of Contents(More)
CONTEXT Healthy elderly persons commonly show 4 types of change in brain structure-cortical atrophy, central atrophy, deep white-matter hyperintensities, and periventricular hyperintensities-as forms of subclinical structural brain disease (SSBD). OBJECTIVES To characterize the volumes of SSBD present with aging and to determine the associations of SSBD,(More)
BACKGROUND Chronic lung infection with the bacterium Pseudomonas aeruginosa is one of the hallmarks of cystic fibrosis (CF) and is associated with worsening lung function, increased hospitalisation and reduced life expectancy. A virulent clonal strain of P. aeruginosa (Australian epidemic strain I; AES-I) has been found to be widespread in CF patients in(More)
OBJECTIVE Although many postgraduate psychology programs address students' mental health, there are compelling indications that earlier, undergraduate, interventions may be optimal. We investigated specific attitudes that predict students' intentions to seek treatment for psychological distress to inform targeted interventions. METHOD Psychology students(More)
AIM The aim of the study was to standardize tests of attention and inhibition for adults in the age range of 16-30 years, who had 1-10 years of formal education. The objectives were to develop normative data for the tests of attention and inhibition, to establish the reliability of the tests of attention and inhibition, and to establish the validity of the(More)