Philip D. Parks

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OBJECTIVE To evaluate consensus criteria for screening commercial drivers for obstructive sleep apnea (OSA). METHODS Consecutive drivers underwent OSA screening using Joint Task Force consensus criteria at commercial driver medical examinations. Outcomes included: clinical yield of screening; and drivers' compliance with polysomnography (PSG) referrals(More)
An implanted neural stimulator with closed loop control requires electrodes for stimulation pulses and recording neuron activity. Our system features arrays of 64 electrodes. Each electrode can be addressed through a cross bar switch, to enable it to be used for stimulation or recording. This electrode switch, a bank of low noise amplifiers with an(More)
STUDY DESIGN Case report. OBJECTIVE Describe a case of chronic occupational low back pain with various treatments of questionable efficacy, leading to prolonged disability, iatrogenic narcotic addiction, and opioid-induced hyperalgesia. SUMMARY OF BACKGROUND DATA Concerns about narcotics and other questionable treatments for chronic low back pain are(More)
Next generation implantable medical devices will have the potential to provide more precise and effective therapies through adaptive closed-loop controllers that combine sensing and stimulation across larger numbers of electrode channels. A major challenge in the design of such devices is balancing increased functionality and channel counts with the(More)
OBJECTIVE Psychomotor vigilance testing (PVT) rapidly assesses attention, reaction time (RT), and abnormal vigilance. Thus, PVT may be an adjunct to screening drivers for high-risk obstructive sleep apnea (OSA)/excess daytime sleepiness (EDS). METHODS Commercial drivers and emergency responders undergoing occupational examinations took a 10-minute PVT and(More)
A fully autonomous intracranial device is built to continually record neural activities in different parts of the brain, process these sampled signals, decode features that correlate to behaviors and neuropsychiatric states, and use these features to deliver brain stimulation in a closed-loop fashion. In this paper, we describe the sampling and stimulation(More)
Ana Abrantes Leona Aiken Arianna Aldridge Valentina Andreeva Borros Arneth Simon L. Bacon Ruth Baer David Baguley Tom Baranowski Steven D. Barger Julie Barlow Jessica Barnack Vernon Barnes Sean Barrett Juergen Barth Danielle Beatty Susan Beck Christie Befort Maureen R. Benjamins Kymberley Bennett Nicole Bereolos Susan Blalock Shirley A. Blanchard Tomas(More)
Complex suture prostheses that deliver sensory and position feedback require a more sophisticated integration with the human user. Here a micro-size active implantable system that provides many-degree-of-freedom neural feedback in both sensory stimulation and motor control is shown, as one potential human-use solution in DARPA's HAPTIX program. Various(More)
We present a Recurrent Neural Network using LSTM (Long Short Term Memory) that is capable of modeling and predicting Local Field Potentials. We train and test the network on real data recorded from epilepsy patients. We construct networks that predict multi-channel LFPs for 1, 10, and 100 milliseconds forward in time. Our results show that prediction using(More)
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