Maria Karavidas

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UNLABELLED Major depressive disorder (MDD) is a common mood disorder that can result in significant discomfort as well as interpersonal and functional disability. A growing body of research indicates that autonomic function is altered in depression, as evidenced by impaired baroreflex sensitivity, changes in heart rate, and reduced heart rate variability(More)
UNLABELLED Fibromyalgia (FM) is a non-inflammatory rheumatologic disorder characterized by musculoskeletal pain, fatigue, depression, cognitive dysfunction and sleep disturbance. Research suggests that autonomic dysfunction may account for some of the symptomatology of FM. An open label trial of biofeedback training was conducted to manipulate suboptimal(More)
This study examined the effects of computer anxiety and computer knowledge on selfefficacy and life satisfaction within the retired older adult computer users. Participants consisted of older adults (aged 53–88) recruited from computer clubs in Florida. Path analysis revealed that computer use helped to increase self-efficacy and lower computer anxiety(More)
Seven professional airplane pilots participated in a one-session test in a Boeing 737-800 simulator. Mental workload for 18 flight tasks was rated by experienced test pilots (hereinafter called "expert ratings") and by study participants' self-report on NASA's Task Load Index (TLX) scale. Pilot performance was rated by a check pilot. The standard deviation(More)
Exposure of healthy people to lipopolysaccharide (LPS; endotoxin) produces a pro-inflammatory response, subjective symptoms, and decreased heart rate variability (HRV). Given the efficacy of HRV biofeedback (BF) for treating asthma, the large autonomic effects of HRV BF, and the link between vagus nerve activity and inflammation, we hypothesized that HRV BF(More)
We evaluated two protocols for treating adults with comorbid asthma and panic disorder. The protocols included elements of Barlow's panic control therapy and elements of Barlow's "panic control therapy" and several asthma education programs, as well as modules designed to teach participants how to differentiate asthma and panic symptoms, and how to apply(More)
The clinical presentation of primary Raynaud's phenomenon (RP) derives from various pathogenic triggers. The use of thermal biofeedback (TBF) may be of benefit in reducing the severity and frequency of attacks. This article summarizes the relevant research regarding the pathophysiology of primary RP and mechanism of TBF for RP. Systematic reviews of the(More)
Heart rate variability for the treatment of major depression is a novel, alternative approach that can offer symptom reduction with minimal-to-no noxious side effects. The following material will illustrate some of the work being conducted at our laboratory to demonstrate the efficacy of heart rate variability. Namely, results will be presented regarding(More)
RATIONALE: Nicotine nasal spray (NNS) may be better for relieving acute cigarette cravings than other nicotine replacement and it may help smokers with schizophrenia because of its rapid onset of action. OBJECTIVES: We tested whether NNS was more effective than a nicotine patch (NP; 21 mg) in reducing cue-induced craving during a 3-day abstinence. METHODS:(More)