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Thomas Ritz
Southern Methodist University
Developmental psychologyPsychologyAsthmaAnxietyMedicine
140Publications
25H-index
1,997Citations
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Publications 144
Newest
#1Natalie C. Tunnell (SMU: Southern Methodist University)H-Index: 1
#2Thomas Ritz (SMU: Southern Methodist University)H-Index: 25
Last. Alicia E. Meuret (SMU: Southern Methodist University)H-Index: 25
view all 5 authors...
Abstract Psychophysiological theories postulate respiratory dysregulation as a mechanism contributing to panic disorder (PD). Additionally, symptomatic and respiratory recovery from voluntary hyperventilation (HVT-recovery) have been shown to lag in PD and it is unclear if HVT-recovery normalizes with treatment. Thirty-seven panic disorder patients were randomized to hypoventilation therapy (TX, n = 20) or waitlist control (WL, n = 17) (Meuret, Wilhelm, Ritz, & Roth, 2008). In a secondary analys...
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#1Serena Mennitto (McGill University)
#1Serena Mennitto (SMU: Southern Methodist University)
Last. Blaine Ditto (McGill University)H-Index: 33
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OBJECTIVE: Most of the research on vasovagal reactions has focused on the contributions of cardiovascular activity to the development of symptoms. However, other research suggests that additional mechanisms like hyperventilation may contribute to the process. The goal of the present investigation was to examine the influences of cardiovascular and respiratory variables on vasovagal symptoms. METHODS: This study was part of a randomized controlled trial investigating the effects of behavioral tec...
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#1Hernando Torres-Zevallos (UPCH: Cayetano Heredia University)
Last. Thomas Ritz (SMU: Southern Methodist University)H-Index: 25
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AbstractBackground: Perceptions of asthma triggers provide important guidance for patients’ disease management. A psychometrically valid instrument, the Asthma Trigger Inventory, is available in En...
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#1Andres D. Roque (SMU: Southern Methodist University)H-Index: 1
#2Michelle G. Craske (UCLA: University of California, Los Angeles)H-Index: 85
Last. Alicia E. Meuret (SMU: Southern Methodist University)H-Index: 25
view all 6 authors...
Abstract Background Response rates to first-line treatments for depression and anxiety remain unsatisfactory. Identification of predictors or moderators that can optimize treatment matching is of scientific and clinical interest. This study examined the role of prolonged laboratory-induced stress cortisol reactivity as a predictor of outcome for a treatment of affective dimensions (TAD). Patients received 15-sessions of a treatment targeting reductions in negative affect or increases in positive...
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#1Eduardo Reyes-Serratos (U of A: University of Alberta)H-Index: 1
#2Marcelo Marcet-Palacios (U of A: University of Alberta)H-Index: 9
Last. A. Dean Befus (U of A: University of Alberta)H-Index: 29
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Abstract Traditional immunoprobing techniques like Western blot continue to play a crucial role in the discovery and validation of biomarkers. This technique suffers from several limitations that affect reproducibility and feasibility for large-scale studies. Modern immunoprobing techniques have addressed several of these limitations. Here we contrast the use of Western blot and an automated capillary nano-immunoassay (CNIA), Wes™. We provide evidence highlighting the methodological advantages o...
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#1Thomas Ritz (SMU: Southern Methodist University)H-Index: 25
#2Juliet L. Kroll (SMU: Southern Methodist University)H-Index: 4
Last. E. Sherwood Brown (UTSW: University of Texas Southwestern Medical Center)H-Index: 39
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Asthma as a chronic inflammatory disease can be expected to affect central nervous system structures but little is known about subcortical structures in asthma and their potential association with illness-specific outcomes and anxiety. A total of 40 young adults (20 with asthma and 20 gender- and age-matched controls) underwent high-resolution T1-weighted MRI scan, viewed short distressing film clips, and filled in questionnaires about anxious and depressed mood, as well as asthma history, contr...
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#1Juliet L. Kroll (SMU: Southern Methodist University)H-Index: 4
#2E. Sherwood Brown (UTSW: University of Texas Southwestern Medical Center)H-Index: 39
Last. Thomas Ritz (SMU: Southern Methodist University)H-Index: 25
view all 3 authors...
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#1Thomas Ritz (SMU: Southern Methodist University)H-Index: 25
#2Juliet L. Kroll (SMU: Southern Methodist University)H-Index: 4
Last. E. Sherwood Brown (UTSW: University of Texas Southwestern Medical Center)H-Index: 39
view all 10 authors...
This functional magnetic resonance imaging study shows, for the first time, that the degree of airway constriction due to negative affective stimuli in asthma is associated with stronger response t...
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#1Michelle G. Craske (UCLA: University of California, Los Angeles)H-Index: 85
#2Alicia E. Meuret (SMU: Southern Methodist University)H-Index: 25
Last. David Rosenfield (SMU: Southern Methodist University)H-Index: 42
view all 6 authors...
OBJECTIVE: Loss of pleasure or interest in activities (i.e., anhedonia) is a risk factor for suicidality, treatment nonresponse, and relapse. Extant treatments that focus on reducing negative affect have limited effects upon positive affect (a core feature of anhedonia). We investigated whether a novel intervention aimed at increasing reward sensitivity was more efficacious for positive affect than a cognitive-behavior treatment aimed at reducing threat sensitivity, in individuals with clinicall...
6 CitationsSource
#1Thomas Ritz (SMU: Southern Methodist University)H-Index: 25
#2Chelsey A. Werchan (SMU: Southern Methodist University)H-Index: 2
Last. David Rosenfield (SMU: Southern Methodist University)H-Index: 42
view all 4 authors...
Abstract Objectives Psychological stress has been linked to common cold symptoms. Nitric oxide (NO) is part of the first line of epithelial defense against pathogens, and beetroot juice is a source of dietary nitrate that increases NO availability. We therefore tested whether beetroot juice protects against cold symptoms in a period of sustained acute stress. Design Seventy-six students, 16 of these with asthma, were randomly assigned to seven daily doses of beetroot juice or no supplementation ...
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